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Forschungsseminar Analysis, Stochastik und Mathematische Physik
der Professur Analysis und der Professur Stochastik

seit dem Wintersemester 2001/2002.

Sommersemester 2016

19.09.2016

Dirichlet-to-Neumann maps and the spectral data of Schrödinger operators, Jussi Behrndt, TU Graz

  Abstract: In this talk we discuss how the spectral data of selfadjoint Schrödinger operators on bounded or unbounded domains can be described with an associated Dirichlet-to-Neumann map. In particular, a characterization of the isolated and embedded eigenvalues, the corresponding eigenspaces, as well as the continuous and absolutely continuous spectrum in terms of the limiting behaviour of the Dirichlet-to-Neumann map is obtained. The results are natural multidimensional analogs of classical facts from singular Sturm-Liouville theory and can also be viewed as mild uniqueness results in the context of the classical Calderon problem.
 

14:00, Reichenhainer Str. 41, Room 705

14.09.2016

Brownian Motion on Manifolds and Gradient Estimates via the Bismut-Elworthy-Li Formula, Robert Baumgarth,TU Dresden

  We study derivatives of gradient estimates of the heat semigroup of stochastic differential equations driven by a Brownian motion in particular the Bismut-Elworthy-Li formula. The remarkable fact of this formula is that the righthand side is independent of the gradient of the function f, so it potentially opens ways of studying gradient estimates. We give a brief overview how to define Brownian motion on (smooth Riemannian) manifolds: the extrinsic approach as solution to the usual martingale problem using a Whitney embedding and the Eells-Elworthy-Malliavin approach using the projection from the orthonormal frame bundle. Consequently, we show the BEL and a generalisation for subordinated Brownian motion.
  15:30, Reichenhainer Straße 41, Raum 705
08.06.2016 Low-rank tensor recovery, Zeljka Stojanac, RTWH Aachen
  Abstract: It has been noticed that many real-world signals are sparse (few entries are different from zero) or compressible (approximately sparse) in a certain basis of frame. This has led to the theory of compressive sensing which enables the recovery of sparse vectors from a number of measurements smaller than the vector length via efficient algorithms. Low-rank tensor recovery received a lot of attention in the last years, especially due to applications in seismology, video compression, and machine learning. Additionally, it is a natural generalization of compressive sensing and low-rank matrix recovery to tensor scenario. In this talk we present two approaches to the problem of low-rank tensors recovery from a small number of linear measurements. In the first approach we consider a natural generalization of the matrix singular value decomposition to tensors, called canonical decomposition (CP-decomposition) and the corresponding notions of rank and norm. The CP-decomposition and therefore its norm are in general NP-hard to compute. To overcome this difficulty we suggest convex relaxations of the tensor unit-nuclear norm ball obtained via theta bodies. These convex relaxations provide us with new norms called theta norms. That is, each relaxation defines a unit-$\theta_k$ norm ball. The theta norms can be computed via semidefinite programming. Thus, we use one of them to recover low-rank tensors from incomplete information via norm-minimization and we present the corresponding numerical results. In the second approach, we consider other tensor decompositions (and the corresponding notions of rank), namely – Tucker decomposition, HT-decomposition, and TT-decomposition. These decompositions can be computed via sequential singular value decompositions of appropriately defined matricizations of a given tensor. We extend and analyze the iterative hard thresholding (IHT) algorithm already known for compressive sensing and low-rank matrix recovery to tensor scenario (tensor IHT or TIHT). We provide a partial convergence result for TIHT. That is, we provide a convergence guarantee under an additional  assumption on the iterates. This analysis is based on the assumption that the linear operator satisfies the so-called tensor restricted isometry property. Finally, we provide numerical results to illustrate the performance of the proposed algorithm.   This is joint work with Holger Rauhut and Reinhold Schneider, available at https://arxiv.org/abs/1505.05175 and http://arxiv.org/abs/1602.05217 .
  15:30, Reichenhainer Straße 41, Raum 705
01.06.2016 The solution of the Gevrey smoothing conjecture for the fully nonlinear
homogeneous Boltzmann equation
, Dirk Hundertmark, Karlsruhe Institute of Technology
  11:00, Reichenhainer Straße 41, Raum 705
25.05.2016 Quantitative and scale-free unique continuation for infinite series of eigenfunctions, Matthias Täufer and Martin Tautenhahn
  15:30, Reichenhainer Straße 41, Raum 705
04.05.2016 On the Rate of Energy Decay for the Damped Wave Equation, Reinhard Stahn
  15:30, Reichenhainer Straße 41, Raum 705
 

In the first part of the talk we recall well known results [Batty-Duyckaerts 08, Borichev-Tomilov 10] which permit to characterize the rate of energy decay via the rate at which the corresponding resolvent operator growth along the imaginary axis. We give an equivalent characterization of the resolvent estimates in terms of a handy inequality. In the second part we discuss the damped wave equation on a 2D partially rectangular domain with a strongly trapped geodesic. I present known results and open questions for this case. The third part of the talk is devoted to a sketch of the proof of the aforementioned handy inequality.

20.04.2016 The Dynamics of Random Quantum Walks and Non-Unitary operators, Eman Hamza
  15:30, Reichenhainer Straße 41, Raum 705
  Abstract: Random Quantum Walks have enjoyed an increasing popularity in recent years due to the roles they play in quantum search algorithms and condensed matter physics. We will discuss the dynamics of random quantum walks on certain graphs. The analysis of which leads to a family of random non-unitary contraction operators. We will present several deterministic and almost sure results about the location and nature of the spectrum of such walks as a function of their parameters.
  We will go for a joint dinner at the La Bouchee in the evening after the talk. A table for 10 is reserved at 18.30.
13.04.2016 Control cost for the heat equation, Matthias Täufer
  15:30, Reichenhainer Straße 41, Raum 705
Wintersemester 2015/2016
17.02.2016 Scale-free quantitative unique continuation and equidistribution estimates for solutions of elliptic differential equations, Martin Tautenhahn
  15:30, Reichenhainer Straße 41, Raum 705
10.02.2016 Mulitidimensional Kovrijkine Lemma, Michela Egidi
  15:30, Reichenhainer Straße 41, Raum 705
27.01.2016 Large deviations, the Wasserstein distance, and concentration of measure, Christoph Schumacher
  15:30, Reichenhainer Straße 41, Raum 705
20.01.2016 Asymptotic behaviour of the Hodge-Laplacian spectrum on a graph-like manifold, Michela Egidi
  15:30, Reichenhainer Straße 41, Raum 705
13.01.2016 Eigenwert-Statistiken und -Verteilungsfunktionen, Ivan Veselić
  15:30, Reichenhainer Straße 41, Raum 705
18.12.2015 Almost additive functions and the monotone Glivenko-Cantelli theorem, Christoph Schumacher
  15:30, Reichenhainer Straße 41, Raum 705
09.12.2015 Some Aspects of Random Schrödinger Operators, Brice Djoumba Tchuenteu
  15:30, Reichenhainer Straße 41, Raum 705
07.10.2015 Poisson summation and pure point diffraction, Christoph Richard (Uni Erlangen)
  15:30, Reichenhainer Straße 41, Raum 705
  Abstract: Quasicrystals are examples on non-periodic structures with
long-range orientational order. They are described by so-called regular
model sets, i.e., projections of certain subsets of a lattice in higher
dimensional space. We show that the celebrated diffraction formula for
regular model sets is equivalent to the Poisson summation formula for
the underlying lattice.
Sommersemester 2015
11.09.2015 The Lifted Pestov Identity and its dynamical application, Michaela Egidi
  (Freitagstagstermin), 14:45, Reichenhainer Straße 41, Raum 705
  Abstract: Starting from the Pestov's Identity on the tangent bundle of a manifold, I will explain how we can obtain an analogous identity for the space of k-tuples of tangent vectors and of k-frames over a manifold. I will also describe how these identities can be used to prove an invariance property of smooth functions on oriented Grassmannians over a manifold under a curvature condition.
10.09.2015 On the Gross-Pitaevskii equation and some generalizations of the binormal curvature flow equation,  Haidar Mohamad (University Pierre & Marie Curie, Paris)
  (Donerstagstermin), 10:15, Reichenhainer Straße 41, Raum 705
  Abstract: This work is a contribution to the study of nonlinear Schrödinger equations (NLS). Such equations arise in many physical fields, including nonlinear optics and Bose- Einstein condensation. This work contains three connected themes. The first part constructs multi-soliton solutions of the Gross-Pitaevskii, as an approximate superposition of traveling waves (solitons). This result is obtained by exploiting the integrability of the the Gross-Pitaevskii equation. The second part clarifies the relations between the classical formulation and the so- called hydrodynamical formulation that only has a meaning when the solution does not vanish anyw- here in the spatial domain. Generalizations for the multidimensional equation are established too. The last part of this work concerns existence and uniqueness results for a family of quasi-linear partial differential equations that generalize the equation of the binormal curvature flow for a curve in the three-dimensional space. The latter equation is in connection to the focussing cubic NLS by Hasimoto transformation.
  15:30, Reichenhainer Straße 41, Raum 705
17.08.2015 Schwellwert für die Lösbarkeit von zufälligen Gleichungssystemen über Z_3, Lutz Falke (TU Chemnitz, Fakultät für Informatik)
  Abstract: Behandelt werden zuällige lineare Gleichungssysteme modulo 3, wobei in jeder Gleichung genau k Variablen vorkommen. Es wird gezeigt, dass der Schwellwert der Lösbarkeit solcher Gleichunssysteme bei einer 2-Kern-Dichte von c=1 liegt. Das Resultat ist eine Verallgemeinerung bereits bekannter Resultate für den modulo 2-Fall.
  (Montagstermin) 14:00, Reichenhainer Straße 41, Raum 705
16.07.2015 Geometrische Eigenschaften von absoluten Summen und Köthe-Bochner-Funktionenräumen, Jan-David Hardke (FU Berlin)
  Abstract
  (Donnerstagstermin) 14:00, Reichenhainer Straße 41, Raum 705
15.07.2015 Mathematische Aspekte des Compressed Sensing, Jan-David Hardke (FU Berlin)
  Abstract
  15:30, Reichenhainer Straße 41, Raum 705
08.07.2015 Die Poissonsche Summationsformel und der Abtastsatz von Shannon (Teil 3), Martin Obst
  15:30, Reichenhainer Straße 41, Raum 705
01.07.2015 Eine Spektralzerlegung für den Bolthausen-Sznitman-Coalescent, Jonas Kukla (Eberhard Karls Universität Tübingen)
  Abstract: Coalescents sind partitionswertige Markovprozesse und haben ihren Ursprung in der Modellierung von Genealogien in der Populationsgenetik. Inhalt des Vortrags sind eine kurze Einführung in Coalescents, eine Spektralzerlegung für den Generator des Bolthausen-Sznitman-$n$-Coalescent und eine Verknüpfung zu zufälligen rekursiven Bäumen.
  15:30, Reichenhainer Straße 41, Raum 705
24.06.2015 Die Poissonsche Summationsformel und der Abtastsatz von Shannon (Teil 2), Martin Obst
  15:30, Reichenhainer Straße 41, Raum 705
10.06.2015 Die Poissonsche Summationsformel und der Abtastsatz von Shannon (Teil 1), Martin Obst
  15:30, Reichenhainer Straße 41, Raum 705
Wintersemester 2014/2015
14.01.2015 Compressed Sensing and Sparse Recovery, Ivan Veselic
  15:30, Reichenhainer Straße 41, Raum 705
13.01.2015 Anderson transition at 2 diensional growth rate for the Anderson model on antitrees with normalized edge weights, Christian Sadel, IST Austria
  Abstract
  13:45, Reichenhainer Straße 41, Raum 638
17.12.2014 Lifshitz tails for continuous Laplacian in the site percolation case, Hatem Najar, University of Monastir
  15:30, Reichenhainer Straße 41, Raum 705
10.12.2014 Low rank approximations of infinite-dimensional Lyapunov equations and applications, Luka Grubisic, Universität Zagreb
  Abstract
  15:30, Reichenhainer Straße 41, Raum 705
03.12.2014 Strongly continuous semigroupd on a class of Fréchet spaces, Thomas Kalmes
  15:30, Reichenhainer Straße 41, Raum 705
22.10.2014 Unique continuation on graphs, Peter Stollmann
  15:30, Reichenhainer Straße 41, Raum 705
Sommersemester 2014
16.07.2014 Sharp Essential Self-adjointness for the relativistic Schroedinger operator, Mouhamed Moustapha Fall, AIMS Senegal
  16:40, Reichenhainer Straße 41, Raum 705
16.07.2014 Die Rolle der Statistik in den Sozialwissenschaften, Sabine Keller, Technische Universität Chemnitz
  15:30, Reichenhainer Straße 41, Raum 40
18.06.2014 Gerald Trutnau, Seoul National University, South Korea
  15:30, Reichenhainer Straße 41, Raum 705
11.06.2014 Der numerische Wertebereich positiver Operatoren in Hilbertverbänden, Agnes Radl, Universität Leipzig
  15:30, Reichenhainer Straße 41, Raum 705
04.06.2014 Tax Salience and Tax Policy,  Martin Altemeyer-Bartscher, Institut für Wirtschaftsforschung Halle
  15:30, Reichenhainer Straße 41, Raum 705
22.05.2014 Quasikristalle und Schreiergraphen, Daniel Lenz, Jena
  15:30, Rühlmann-Bau, Raum B202
21.05.2014 On existence of positive solutions for the heat equation of the Fractional Dirichlet Laplacian with negative measures, Ali Ben Amor
  15:30, Reichenhainer Straße 41, Raum 705
30.04.2014 On non-round points of the numerical range and an application to non-selfadjoint Schrödinger operators, Marcel Hansmann
  15:30, Reichenheiner Straße 41, Raum 705
23.04.2014 Random Perturbations of Autoresonance, Oskar Sultanov, Institute of Mathematics RAS, Ufa, Russia
 

15:30, Reichenheiner Straße 41, Raum 705

Abstract: A System of differential equations arising in the theory of nonlinear oscillations in resonance-related problems is considered. Of special interest are solutions whose amplitude increases with time. Such solutions correspond to autoresonance phenomenon. Explicit formulas for solutions can't be obtained. However, it is possible to construct an asymptotic expansion for some particular solutions. The stability of such type solutions with respect to random perturbations is analysed.

16.04.2014 Hyperzyklische und chaotische Halbgruppen, Thomas Kalmes
  15:30, Reichenheiner Straße 41, Raum 705
02.04.2014 Grenzverteilungssätze für Modelle ungeordneter physikalischer Systeme, Ivan Veselic
 

15:30, Reichenheiner Straße 41, Raum 705

Abstract: Dies ist ein einführender Vortrag, der einige Grenzverteilungssätze, die bei der stochastischen Modellierung komplexer Systeme Verwendung finden, vorstellt. Dabei ist der Begriff Grenzverteilungssatz weit gefasst und umfasst Sätze der großen Zahlen bzw. Ergodensätze, Limiten von Punktprozessen und die Charakterisierung von asymptotischen Eigenschaften von Verteilungen, die als Grenzwert auftreten. Die Grenzwertsätze ermöglichen es, Funktionen von unendlich vielen Zufallsvariablen durch solche von endlich vielen zu approximieren. Es werden Beispiele aus der Perkolationstheorie und von Eigenwertstatistiken von zufälligen Hamilton-Operatoren vorgestellt, in denen diese Konvergenzsätze Anwendung finden.

 

Wintersemester 2013/14
19.02.2014 Lifshitz tails on the Bethe lattice, Francisco Hoecker-Escuti, Christoph Schumacher
  16:15, Reichenheiner Straße 41, Raum 705
17.02.2014 Large time behaviour of the heat equation with magnetic field, David Kreijcirzik, Academy of Sciences of the Czech Republic
  13:30, Reichenheiner Straße 41, Raum 705
17.02.2014 Spectral geometry of the Laplacian, David Kreijcirzik, Academy of Sciences of the Czech Republic
  11:00, Reichenheiner Straße 41, Raum 705
06.02.2014

Uncertainty quantification, Virginie Ehrlacher, Ecole des Ponts ParisTech, France

 

10:30, Reichenheiner Straße 41, Raum 705

Abstract: In this talk, we will present a basic introduction to uncertainty quantification methods. The aim of uncertainty quantification is the following: given the solution of a PDE with stochastic coefficients, we would like to compute output quantities like statistical averages or failure probability knowing the law of input quantities. After the description of the well-known Karhunen-Loeve decomposition, which is the basic mathematical tool used in order to represent a square-integrable processes by means of a finite number of random variables, we will present the most classical stochastic and deterministic techniques used in uncertainty quantification in order to compute means, failure probabilities and probability distribution of output quantities, like Monte-Carlo, reliability methods, Neumann, perturbation, L2 projection, collocation and Galerkin methods. If there is enough time, a brief introduction to methods specifically designed to circumvent the curse of dimensionality will be presented.

05.02.2014

Periodic Schrödinger operators with local defects and spectral pollution, Virginie Ehrlacher, Ecole des Ponts ParisTech, France

 

15:30, Reichenheiner Straße 41, Raum 705

Abstract: This talk will deal with the numerical calculation of eigenvalues of perturbed periodic Schrödinger operators located in spectral gaps. Such operators are encountered in the modeling of the electronic structure of crystals with local defects, and of photonic crystals. The usual finite element Galerkin approximation is known to give rise to spectral pollution. We show that the corresponding spurious eigenvectors can be interpreted as surface states in a certain sense which will be precised. Besides, we extend results by Lewin and Séré on some no-pollution criteria and prove that spectral pollution can be avoided using augmented finite element bases using the so-called Wannier functions. Indeed, we prove that using approximate spectral projectors enables one to eliminate spectral pollution in a given spectral gap of the reference periodic Schrödinger operator. Lastly, we prove that the supercell method does not lead to spectral pollution and provide a priori estimates for this approximation method. It is proved in particular that the rate of convergence of the method is exponential with respect to the size of the supercell.

29.01.2014

Spectral averaging for random operators with a summability condition on singular values, Matthias Täufer,

  15:30, Reichenheiner Straße 41, Raum 705

29.01.2014

Pointwise ergodic theorems for the free group - the Bowen/Nevo approach, Felix Pogorzelski, Friedrich-Schiller-Universität Jena,

 

13:30, Reichenheiner Straße 41, Raum 705

Abstract: The theory of the dynamics of measure preserving group actions on probability spaces is a key discipline in ergodic theory. During the last couple of years,significant breakthroughs have been made concerning the pointwise convergence theorems for actions on non-amenable groups. In particular, Lewis Bowen and Amos Nevo have developed a strong machinery to prove ergodic theorems for large classes of group. The goal of the talk is to give a brief description of the method in the case of the free group. We will point out how to find amenable equivalence relations on the boundary of the group which can be used to use classical tools for beautiful non-classical results.

15.01.2014 A Hardy inequality on Riemannian manifolds and applications to spectral theory, Niels Rautenberg, Ruhr-Universität Bochum
27.11.2013 On the spectrum of random regular graphs with random edges weights, Victor Babst
16.10.2013 A Wegner estimate for an Anderson model with randomly shaped single-site potentials, Matthias Täufer, Ludwig-Maximilians-Universität München
09.10.2013 Trace formula and heat kernel asymptotics on quantum graphs, Ralf Rueckriemen, University of London

 

 

Sommersemester 2013
05.09.2013 (Donnerstag) Many-particle quantum graphs and Bose-Einstein condensation, Joachim Kerner, University of London
04.09.2013 A Nonlinear Moving-Boundary problem of Parabolic-Hyperbolic Type arising in Fluid Interaction Problems, Boris Muha, University of Zagreb
21.08.2013 On the connection between discrete and metric graphs, Sebastian Haeseler, Friedrich-Schiller-Universität Jena
12.07.2013 Kato's square root theorem as a basis for relative estimation theory of eigenvalue approximations, Luka Grubisic, University of Zagreb
1.7.2013 (Montag) Gemeinsame Veranstaltung mit dem Seminar Partielle Differentialgleichungen
  Optimal damping of vibrational systems, Ivica Nakić (University of Zagreb), 10:15, Reichenhainer Str. 70, Room B202
20.6.2013 (Donnerstag) Gemeinsame Veranstaltung mit dem Seminar Diskrete Geometrie
  Scharfe Schwellen zufälliger kombinatorischer Strukturen, Andreas Goerdt (Fakultät für Informatik), 11:15, Room 41/705
22.5.2013 Gemeinsame Veranstaltung mit dem Seminar Diskrete Geometrie
  Minimax-Optimierungsaufgabe in endlichdimensionalen Banachräumen, Thomas Jahn, 15:30, Room 41/705
17.4.2013 Vortrag zur Semesterarbeit
  Beweis der Carleman-Ungleichung III, Christian Rose, 15:30, Room 41/705
10.4.2013 Vortrag zur Semesterarbeit
  Beweis der Carleman-Ungleichung II, Christian Rose, 15:30, Room 41/705
Wintersemester 2012/2013
13.2.2013 Vortrag zur Semesterarbeit
  Beweis der Carleman-Ungleichung I, Christian Rose, 15:30, Room 41/705
6.2.2013 Verteidigung Diplomarbeit
  Konvergenzraten für Makovketten, k-Scans und fastadditive Funktionen, Harmut Leister , 13:00, Room 41/705
5.2.2013 (Dienstag) Gemeinsame Veranstaltung mit dem Seminar Diskrete Geometrie
  Large time behaviour of heat kernels, Daniel Lenz (FSU Jena), 16:00, Room 41/705
  Abstract, We study long time behaviour of heat kernels and show convergence of the semigroup to the ground state and convergence of suitably averaged logarithms of kernels to the ground state energy. The results hold for arbitrary selfadjoint positivity improving semigroups. This framework includes Laplace operator on manifolds, on graphs and on quantum graphs. (Joint work with Matthias Keller, Hendrik Vogt, Radoslaw Wojciechowski)
28.11.2012 Concentration of mass and central limit property for isotropic convex bodies in high dimensions , Jürgen Voigt (TU Dresden), 15:30, Room 41/705
30.1.2013 Konvergenzratentheorie bei Inversen Problemen, Jens Flemming (TU Chemnitz), 15:30, Room 41/705
23.1.2013 Resonances and threshold singularities for magnetic quantum Hamiltonians, Georgi Raikov (Santiago, Pontificia Universidad Catolica de Chile), 15:30, Room 41/705
16.1.2013 Inverse Probleme, Bernd Hofmann (TU Chemnitz), 15:30, Room 41/705
9.1.2013 Gemeinsame Veranstaltung mit dem Seminar Diskrete Geometrie
  Convergence theorems for graph sequences, Felix Pogorzelski (FSU Jena), 12:30, Room 41/705
17.10.2012 Gemeinsame Veranstaltung mit dem Forschungsseminar Algorithmische und Diskrete Mathematik
  Phänomene bei der Besteuerung von Matrixspielen, Marlis Bärthel (FSU Jena), 15:30, Room 41/705
10.10.2012 Dynamical properties of almost repetitive Delone sets, Christoph Richard, 15:30, Room 41/705  
  Abstract, The non-periodic Penrose tiling of the plane exhibits a strong regularity property called linear repetitivity. This regularity is reflected in strict ergodicity of an associated dynamical system arising from the tiling's translation orbit closure. We introduce relaxed versions of linear repetitivity for uniformly discrete point sets, which still lead to strictly ergodic dynamical systems. Examples are periodic point sets with almost periodic modulations, and primitive substitutions tilings finite local complexity with respect to the Euclidean group with dense tile orientations.
Sommersemester 2012
22.08.2012 TBA, Fabian Schwarzenberger (TU Chemnitz), 15:45, Room 41/705
31.07.2012 Antibäume - das perfekte (Gegen)beispiel, Matthias Keller (FSU Jena), 15:45, Room 41/705
18.07.2012 Ueber lineare Statistiken von Zufallsmatrizen, Torsten Ehrhardt (UC Santa Cruz), 15:45, Room 41/705
11.07.2012 TBA, Friedrich Phillip (TU Berlin), 15:45, Room 41/705
27.06.2012 TBA II, Christian Seifert (TU Chemnitz), 15:45, Room 41/705
20.06.2012 The Anderson model at small disorder and low density regimes, Francisco W. Hoecker-Escuti (LAGA), 15:45, Room 41/705
30.05.2012 TBA, Christian Seifert (TU Chemnitz), 15:45, Room 41/705
23.05.2012 Gemeinsame Veranstaltung mit dem Forschungsseminar Algorithmische und Diskrete Mathematik
  Laplace Operatoren auf Hypergraphen, Peter Gmeiner (Erlangen), 15:45, Room 41/705
Abstract: deutsch
18.05.2012 Function-valued laws of large numbers and multidimensional Glivenko-Cantelli Theorems, Ivan Veselic (TU Chemnitz), 15:45, Room 41/705
16.05.2012 TBA, Hartmut (TU Chemnitz), 15:45, Room 41/705
02.05.2012 Glivenko-Cantelli Theorems and Classes , Ivan Veselic (TU Chemnitz), 15:45, Room 41/705
25.04.2012 Spektrale Zustandsdichte von Schrödinger-Operatoren auf Bäumen, Wolfgang Spitzer, (FernUni Hagen), 15:45, Room 41/705
11.04.2012 Orenstein and Weiss tiling Lemmas, Fabian Schwarzenberger (TU Chemnitz), 15:45, Room 41/705
4.04.2012 Ergodic theorem, empirical measures, and large deviations, Ivan Veselic (TU Chemnitz), 15:30, Room 41/705
4.04.2012 Semigroup estimates for a singular diffusion on the real axis, Daniel Wingert (TU Chemnitz), 14:30, Room 41/705
Wintersemester 2011/2012
15.02.2012 The resolvent of elliptic operators with distant perturbations, Anastasia Golovina (Bashkir State Pedagogical University), 15:45, Room 41/705
08.02.2012 TBA, Marcel Hansmann (TU Chemnitz), 15:45, Room 41/705
01.02.2012 Die integrierte Zustandsdichte für den Wilson-Dirac-Operator, Carolin Kurig (Johannes Gutenberg-Universität Mainz), 15:45, Room 41/705
25.01.2012 TBA, Felix Pogorzelski (FSU Jena), 15:45, Room 41/705
18.01.2012 Dimensions of attractors in pinched skew products, Dr. Tobias Oertel-Jaeger (TU Dresden), 15:45, Room 41/705
14.12.2011 The complex Laplacian and its heat semigroup, Peter Stollmann (TU Chemnitz), 15:45, Room 41/705
07.12.2011 Spectral properties of dynamical localization for Schroedinger operators, Amal Taarabt (University of Cergy-Pontoise), 15:45, Room 41/705
30.11.2011 Self-orthogonal subspaces and operators on infinite metric graphs, Christian Seifert (TU Chemnitz), 15:45, Room 41/705
23.11.2011 Wegner estimate for discrete alloy-type models, Martin Tautenhahn (TU Chemnitz), 15:45, Room 41/705
09.11.2011 Phasenfeldgleichungen mit geometrisch-linearer Elastizitaet, Thomas Blesgen (MPI Leipzig), 15:45, Room 41/705
19.10.2011 Carleman and unique continuation estimates II, Ivan Veselić (TU Chemnitz), 15:45, Room 41/705
12.10.2011 Carleman and unique continuation estimates I, Ivan Veselić (TU Chemnitz), 15:45, Room 41/705
Sommersemester 2011
12.08.2011 Modeling of curved quantum waveguides, Denis Borisov (Bashkir State Pedagogical University), 11:00, Room 41/705
Keywords:
basic methods for curved waveguides: straightening, the corresponding change of coordinates, the resulting divergence form partial differential operator on the straight waveguide etc.
14.07.2011 Gemeinsame Veranstaltung mit dem Forschungsseminar Algorithmische und Diskrete Mathematik
  Spektrale Darstellungen von eckentransitiven Graphen, Archimedische Koerper und endliche Coxetergruppen, Norbert Peyerimhoff (University of Durham), 11:30, Room 41/733
13.07.2011 TBA, Constanza Rojas-Molina (Université de Cergy-Pontoise), 15:30, Room 41/705
06.07.2011 Spectral Properties of Random Matrices, Slim Ayadi (Georgia Institute of Technologie), 15:30, Room 41/705
Abstract: english
29.06.2011 Dynamische Lokalisierung für eine ungeordnete Quanten-Spin-Kette, Guenther Stolz (University of Alabama at Birmingham ), 15:30, Room 41/705
08.06.2011 Zur Multiskalenanalyse a la von Dreifiss und Klein, Karsten Leonhardt (TU Chemnitz), 15:30, Room 41/705
25.05.2011 Wahrscheinlichkeiten fuer tiefe Grundzustandsenergien fuer multidimensionale Breather-Modelle, Christoph Schumacher (TU Chemnitz), 15:30, Room 41/705
18.05.2011 Differenzierbarkeit der Perkolationswahrscheinlichkeit, Juliane Kirsch (TU Chemnitz), 15:30, Room 41/705
04.05.2011 Punktspektrum eindimensionaler Schrödingeroperatoren, Christian Seifert (TU Chemnitz), 15:30, Room 41/705
27.04.2011 Characterization of the Anderson metal-insulator transition for non ergodic random operators, Constanza Rojas-Molina (Université de Cergy-Pontoise), 15:30, Room 41/705
Abstract: english
27.04.2011 Gemeinsame Veranstaltung mit dem Forschungsseminar Algorithmische und Diskrete Mathematik
  Unendliche und endliche Perkolationscluster, Melanie Weissbach (TU Chemnitz), 14:00, Room 41/705
  Diplomarbeits-Verteidigung
20.04.2011 Random breather potentials, Christoph Schumacher (TU Chemnitz), 15:30, Room 41/705
13.04.2011 Ergodic properties of randomly coloured point sets , Christoph Richard (Uni Erlangen), 15:30, Room 41/705
Abstract: english
Wintersemester 2010/2011
31.03.2011 MSA fuer metrische Graphen II, Carsten Schubert (TU Chemnitz), 14:00, Room 41/705
30.03.2011 MSA fuer metrische Graphen I, Carsten Schubert (TU Chemnitz), 15:30, Room 41/705
16.02.2011 The inverse spectral problem for the periodic Jacobi matrices, Maria Korotyaeva (HU Berlin), 15:30, Room 41/705
Abstract: english
15.02.2011 On eigenvalue problems and the modified Birman Schwinger principle , Denis Borisov (Bashkir State Pedagogical University ), 17:15, Room 41/705
02.02.2011 KAM method and spectral properties of the limit-periodic Schrödinger operator in dimension two, Yulia Karpeshina (University of Alabama Birmingham), 15:30, Room 41/705
Abstract: english
05.01.2011 Stochastically complete metric graphs, Sebastian Haeseler (Uni Jena), 15:30, Room 41/705
15.12.2010 Topologische Transitivität in zufälligen klassischen dynamischen Systemen, Christoph Schumacher (TU Chemnitz), 15:30, Room 41/705
08.12.2010 Vorstellung der Forschung der Prudsys AG, Dr. Michael Theß und Andre Müller (Prudsys AG), 15:30, Room 39/638
01.12.2010 Aperiodische Ordnung und Diffraktion, Daniel Lenz (Uni Jena), 15:30, Room 41/705
18.11.2010 Minimal partitions of quantum graphs, Hillel Raz (Cardiff University), 11:15, Room 41/705
10.11.2010 Analysis, (Sub)-Riemannsche Geometrie und Spektraltheorie, Wolfram Bauer (Göttingen), 15:30, Room 41/705
27.10.2010 Vielteilchensysteme mit singulärer Zweiteilchen-Wechselwirkung auf Graphen, Jens Bolte (University of London), 15:30, Room 41/705
20.10.2010 Eigenwerte nicht-selbstadjungierter Operatoren, Marcel Hansmann (TU Chemnitz), 15:30, Room 41/705
11.10.2010 Darstellungssätze für indefinite quadratische Formen mit Anwendungen in der Theorie der Operatorgleichungen, Luka Grubišić (University of Zagreb), 14:00, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
07.10.2010 An application of semigroup theory in initial boundary value problems, Željko Kereta (University of Zagreb), 14:30, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
07.10.2010 Semigroups for flows in infinite networks, Marko Erceg (University of Zagreb), 14:00, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
07.10.2010 Fixing eigenvalues, pseudospectrum and distance problems in control theory, Ivica Nakić (University of Zagreb), 11:00, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
07.10.2010 Time evolution and spectra in quantum mechanics (3), Krešimir Veselić (Fernuniversität Hagen / Sveučilište u Rijeci), 11:00, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
06.10.2010 Time evolution and spectra in quantum mechanics (2), Krešimir Veselić (Fernuniversität Hagen / Sveučilište u Rijeci), 15:30, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
06.10.2010 Heat kernel estimates for relativistic Schrödinger operators, Daniel Wingert (TU Chemnitz), 14:45, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
06.10.2010 Uniform approximation of the integrated density of states, Fabian Schwarzenberger (TU Chemnitz), 14:00, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
06.10.2010 Fractional moment method for discrete alloy-type models, Martin Tautenhahn (TU Chemnitz), 11:00, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
06.10.2010 Time evolution and spectra in quantum mechanics (1), Krešimir Veselić (Fernuniversität Hagen / Sveučilište u Rijeci), 10:00, Room 41/705
Joint Chemnitz-Zagreb Seminar on Mathematical Physics 5. -12. October 2010
Sommersemester 2010
09.07.2010 Spectral Representations of Archimedean Solids and finite Coxeter Groups, Norbert Peyerimhoff (University of Durham), 15:30, Room 41/733
07.07.2010 Dirichletformen auf zufälligen Sierpinski-Dreiecken, Uta Renata Freiberg (Universität Siegen), 15:30, Room 41/733
09.06.2010 Cheeger constants, exponential Growth and spectrum of planar graphs, Matthias Keller (Universität Jena), 15:30, Room 41/733
Abstract: english, deutsch
02.06.2010 Heat kernel estimates for relativistic Schrödinger operators and Graphlaplacians, Daniel Wingert (TU Chemnitz), 15:30, Room 41/733
26.05.2010 The application of Cartan's Lemma to Schroedinger Operators, Helge Krüger (Rice University), 10:00, Room 41/733
25.05.2010 Der Weg zu offenen Quatensystemen, Karsten Leonhardt (TU Chemnitz), 15:30, Room 41/733
19.05.2010 Ergodic Theorems on Amenable Groups , Felix Pogorzelski (Universität Tübingen), 15:30, Room 41/733
Abstract: english
12.05.2010 Unabhängige Mengen in Graphen großer Taillenweite, Frank Göring (TU Chemnitz), 15:30, Room 41/733
12.05.2010 Perkolation und unendliche Cluster, Melanie Weissbach (TU Chemnitz), 15:30, Room 41/733
14.04.2010 Linear PDE on G-bundles, Joe J. Perez (Wien), 15:30, Room 41/733
07.04.2010 Uniform approximation of the integrated density of states on amenable groups, Fabian Schwarzenberger (TU Chemnitz), 15:30, Room 41/733
Wintersemester 2009/2010
18.01.2010 TBA, Bernd Klöss (Uni Tübingen), 17:15, Room 41/733
4.-7.1.2010 Kurs: Orthogonale Polynome und Irrfahrten, F. Sobieczky (Universität Jena), Room 41/733
21.10.2009 Singuläre Diffusion und Dirichlet Formen, Christian Seifert (TU Chemnitz), 15:30, Room 41/733
Sommersemester 2009
21.09.2009 Spectral properties derived from the solution of the time-dependent Schroedinger equation, Tobias Kramer (Uni Regensburg), 11:30, Room 2/B202
08.07.2009 TBA, Susanna Reiss , 15:30, Room 41/733
07.07.2009 Regelleistungseinsatz im Hoechstspannungsnetz - Zeitreihenanalyse in der Praxis, Eva Kurscheid (E.ON), 15:30, Room 2/N105
01.07.2009 Uncertainty principles and Wegner estimates, Peter Stollmann (TU Chemnitz), 11:30, Room 41/733
25.06.2009 Unitaere Anderson-Modelle II, Günter Stolz (UAB), 11:30, Room 41/733
24.06.2009 Unitaere Anderson-Modelle I, Günter Stolz (UAB), 15:30, Room 41/733
11.06.2009 TBA, Ivan Veselić (TU Chemnitz), 13:45, Room 41/733
10.06.2009 Dirichlet-Formen auf diskreten Mengen, Daniel Lenz (TU Chemitz), 15:45, Room 41/733
3.6.2009 Ein informationsgeometrischer Zugang zur Quantifizierung der Komplexitaet zusammengesetzter Systeme, Nihat Ay (Leipzig), 15:30, Room 2/N006
27.5.2009 Wegner Estimate for alloy-type potentials, Ivan Veselić (TU Chemnitz), 15:30, Room 41/733
20.05.2009 Quantengraphen III, Carsten Schubert (TU Chemnitz), 15:30, Room 41/733
06.05.2009 A dual characterization of length spaces II, Peter Stollmann (TU Chemnitz), 15:30, Room 41/733
29.04.2009 A dual characterization of length spaces I, Peter Stollmann (TU Chemnitz), 15:30, Room 41/733
20.04.2009 TBA, Jens Wirth (Imperial College London), 14:00, Room 41/733
Wintersemester 2008/2009
28.01.2009 Sharp interface limit for Stochastic Allen-Cahn Equation , Hendrik Weber (Uni Bonn), 15:30, Room 41/733
14.01.2009 Einige Probleme über unendliche Gruppen , Andrzej Zuk (Paris 7), 15:30, Room 41/733
08.01.2009 Das Schurkomplement und die iterative Lösung eines Eigenwertproblems aus der Quantenelektrodynamik, Marcel Griesemer (Uni Stuttgart), 16:00, Room B 202
07.01.2009 Fraktionale-Momenten-Methode für Einzelplatzpotentiale mit endlichem Träger in 1D , Martin Tautenhahn (TU Chemnitz), 15:30, Room 41/538
12.12.2008 Perkolationscluster auf Cayleygraphen und deren Spektren, Ivan Veselić (TU Chemnitz), 13:30, Room 41/538
26.11.2008 Nichtlokale Dirichlet-Formen: Funktionen lokal im Definitionsgebiet und intrinsische Metrik, Daniel Wingert (TU Chemnitz), 15:30, Room 41/538
26.11.2008 Geometrische und spektrale Eigenschaften von Perkolationsgraphen, Ivan Veselić (TU Chemnitz), 13:45, 39/722 (Forschungsseminar Algorithmische und Diskrete Mathematik)
05.11.2008 Was ist ein Inverses Problem?, Dana Uhlig (TU Chemnitz), 15:30, Room 41/538
29.10.2008 Taubertheoreme für Momente von Verteilungen, Fabian Schwarzenberger (TU Chemnitz), 15:30, Room 41/538
22.10.2008 Spektrale Mittelung für Matrizen, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
15.10.2008 Spektral- und Fredholmtheorie einer grossen Klasse unendlicher Matrizen, Marko Lindner (TU Chemnitz), 15:30, Room 41/538
Abstract: deutsch
Sommersemester 2008
17.09.2008 TBA, Norbert Peyerimhoff (Durham), 15:30, Room 2/B202
11.09.2008 Combinatorial and probabilistic aspects of square lattice polygons, Christoph Richard (Bielefeld), 15:30, Room 2/B202
16.07.2008 Elliptische Differentialoperatoren und die Dirichlet-zu-Neumann Abbildung, Jussi Behrndt (TU Berlin), 15:30, Room 41/538
15.07.2008 Solitonen auf periodischen Hintergrund und nichtlineare Dispersion, Helge Krueger (Rice University), 15:30, Room 41/538
25.06.2008 Conditions for nicely ordered structures in substitution point sets, Jeong-Yup Lee (KIAS, Seoul, Korea), 15:30, Room 41/538
05.06.2008 Über die Bessis-Moussa-Villani-Vermutung, Christian Fleischhack (Uni Hamburg), 15:30, Room 2/B202
04.06.2008 Sharp results on large coupling convergence, Johannes Brasche (TU Clausthal), 15:30, Room 41/538
03.06.2008 L^p Approximation der IDS fuer zufällige Schrödingeroperatoren mit endlicher lokaler Komplexität, Ivan Veselić (TU Chemnitz), 13:45, Room 41/733
28.05.2008 Mathematische Herausforderungen in nichtlinearer Faseroptik, Dirk Hundertmark (UIUC, Urbana-Champaign, USA), 15:30, Room 41/538
14.05.2008 Rückkehrwahrscheinlichkeiten auf Cayley-Graphen und ihr Zusammenhang mit der integrierten Zustandsdichte, Fabian Schwarzenberger (TU Chemnitz), 15:30, Room 41/538
07.05.2008 Localization for multi-particle random Schrödinger operators, Martin Gaume (Universite Paris VII), 15:30, Room 41/538
23.04.2008 TBA, Daniel Lenz (TU Chemnitz), 15:30, Room 41/538
Wintersemester 2007/2008
16.01.2008 On Central Limit Theorem For q-step walks over random Erdos-Renyi graphs, Oleksiy Khorunzhiy, 15:30, Room 41/538
19.12.2007 Nonuniform upper estimates of the density of states in dimension one, Bernd Metzger (Bochum), 15:30, Room 41/538
28.11.2007 Lifshitz tails on lattice graphs - an open(?) problem, Mario Helm (TU Chemnitz), 15:30, Room 41/538
07.11.2007 Kreins Resolventenformel auf Quantengraphen, Carsten Schubert (TU Chemnitz), 15:30, Room 41/538
24.10.2007 Konzentrationsungleichungen, Peter Stollmann (TU Chemnitz), 15:30, Room 41/538
Sommersemester 2007
05.07.2007 Minimierung des Grundzustands eines Elektrons in einem zufällig deformierten Gitter, Günter Stolz (UAB), 11:00, Room 41/538
20.06.2007 Moser's Harnack-Ungleichung, Sebastian Haeseler (TU Chemnitz), 15:30, Room 41/538
14.06.2007 Spektren und Spektraltypen quasiperiodischer Schrödingeroperatoren, David Damanik (Rice University), 15:30, Room 2/B202
13.06.2007 Vortrag und Fragestunde: Promotion in den USA- PhD am Mathe-Department von Rice, David Damanik (Rice University), 15:30, Room 41/538
07.06.2007 Sturm-Liouville operators in the half axis with local perturbations, Rafael del Rio, 11:00, Room 41/733
30.05.2007 Distant perturbations of the Laplacian in a multi-dimensional space, Denis Borisov, 15:30, Room 41/538
24.05.2007 Über Schrödinger-Poisson Systeme, Joachim Rehberg, 15:30, Room 2/B202
21.05.2007 Optimal damping of vibrational systems, Ivica Nakić, 19:00, Room 41/733
16.05.2007 Gemeinsame Veranstaltung mit dem Forschungsseminar Algorithmische und Diskrete Mathematik
  Die Rotationsdimension von Graphen, Markus Wappler (TU Chemnitz), 11:30, Room 41/538
10.05.2007 Strong amenability of horocyclic products of Galton Watson trees, Florian Sobiecky, 12:00, Room 41/538
10.05.2007 Spektraltheoretische Untersuchungen von zufälligen Operatoren auf Delone-Mengen, Dissertations-Verteidigung von Steffen Klassert (TU Chemnitz), 15:30, Room 41/538
02.05.2007 TBA, Daniel Lenz (TU Chemnitz), 15:30, Room 41/538
25.04.2007 Low lying spectrum of periodic and random operators on Lamplighter groups, Tonći Antunović (TU Chemnitz), 15:30, Room 41/538
18.04.2007 Low energy asymptotics of periodic and percolation Laplacians on Cayley graphs, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
11.04.2007 Ergodic Theorems on aperiodic linearly repetitive systems and applications, Adnene Besbes (Universite Paris 7), 15:30, Room 41/538
Wintersemester 2006/2007
11.04.2007 Ergodic Theorems on aperiodic linearly repetitive systems and applications, Adnene Besbes (Universite Paris 7), 15:30, Room 41/538
06.02.2007 Hilbert C*-modules, group C*-algebras, von Neumann traces, compactly supported eigenfunctions, and all that, Michael Gruber (TU Chemnitz), 15:30, Room 41/538
05.02.2007 A lower bound on the lowest spectral gap of Schrödinger operators with Kato class measures, Hendrik Vogt (TU Dresden), 14:15, Room 41/538
Abstract: english
24.01.2007 Localization on a cubic lattice graph with a random potential, Mario Helm (TU Chemnitz), 15:30, Room 41/538
18.01.2007 Ordinale Klassifikation mithilfe von CART oder wie man mithilfe von Bäumen die Zukunft voraussagen kann, Tobias Guennel (TU Chemnitz), 17:15, Room B 202
17.01.2007 Greens' function for tree like graphs, Matthias Keller (TU Chemnitz), 15:30, Room 41/538
17.01.2007 Geburtstagsfeier, Geburtstagskinder (TU Chemnitz), 14:00, Room 41/538
10.01.2007 Halbgruppen auf metrischen Graphen, Vadim Kostrykin (ILT Aachen/TU Clausthal), 15:30, Room 41/538
Abstract: deutsch
13.12.2006 Selfadjoint operators: construction and eigenvalue bounds, Kresimir Veselić (Fernuniversität Hagen), 15:30, Room 41/538
Abstract: english
07.12.2006 Untere Schranken an Eigenwertabstände, Ivan Veselić (TU Chemnitz), 15:30, Room B 202
29.11.2006 Entropy of visible points, Peter Pleasants (UNSW, Brisbane), 15:30, Room 41/538
15.11.2006 Anderson localization for radial tree-like random quantum graphs, Olaf Post (Humboldt-Universität Berlin ), 15:30, Room 41/538
Abstract: english
09.11.2006 Wegner estimates for sign-indefinite potentials, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
08.11.2006 Metric Graphs and Quantum Graphs, Carsten Schubert (TU Chemnitz), 15:30, Room 41/538
01.11.2006 Wegner estimates for sign-definite potentials, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
26.10.2006 Retrieving Convex Bodies from Restricted Covariogram Functions, Gennadiy Averkov (Universität Magdeburg), 14:00, Room 41/538
Abstract: english
25.10.2006 Fractional moments according to Graf, Martin Tautenhahn (TU Chemnitz), 15:30, Room 41/538
20.10.2006 Van Hove singularities for Laplacians on Cayley graphs, Tonći Antunović (TU Chemnitz), 13:45, Room 41/538
19.10.2006 Perkolation auf Z², Ivan Veselić (TU Chemnitz), 15:30, Room B 202 (CMC)
18.10.2006 Ergodic theorems in Banach spaces and applications, Daniel Lenz (TU Chemnitz), 15:30, Room 41/538
Sommersemester 2006
18.07.2006 Transport processes in networks with scattering ramification nodes, Agnes Radl (Universität Tübingen), 17:15, Room 41/538
Abstract: english
12.07.2006 Laplace Operators on Quantum Graphs , Carsten Schubert (TU Chemnitz), 15:30, Room 41/538
05.07.2006 Lifshitz tail estimates on percolation graphs of polynomial growth, Tonći Antunović (TU Chemnitz), 15:30, Room 41/538
28.06.2006 On an Asymptotic Boundary Value Problem for Second Order Differential Equations, Katarzyna Szymanska, 15:30, Room 41/538
Abstract: english
27.06.2006 Absence of absolutely continuous spectrum for Delone Hamiltonians, Steffen Klassert (TU Chemnitz), 17:15, Room 41/538
14.06.2006 Produkte zufälliger Matrizen und der Lyapunov-Exponent, Matthias Keller (TU Chemnitz), 15:30, Room 41/538
07.06.2006 Kesten's Theorem for the critical percolation probability and Russo's inequalities, Martin Tautenhahn (TU Chemnitz), 15:30, Room 41/538
30.05.2006 Diffraction under the Meyer Condition II, Nicolae Strungaru, 15:30, Room 41/538
23.05.2006 On the Bombieri/Taylor conjecture, Daniel Lenz (TU Chemnitz), 15:30, Room 41/538
18.05.2006 Existenz- und Stetigkeitseigenschaften der Integrierten Zustandsdichte, Ivan Veselić (TU Chemnitz), 15:30, Room B 20241
17.05.2006 Diffraction under the Meyer Condition, Nicolae Strungaru, 15:30, Room 41/538
10.05.2006 Chaotic dynamical systems: main properties and scope of application, Katrin Gelfert, 15:30, Room 41/538
03.05.2006 Lipschitz continuity of the IDS for one dimensional alloy type potentials with small support, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
25.04.2006 Differential inequalities of the order parameter and the precolation treshold II, Tonći Antunović (TU Chemnitz), 15:30, Room 41/538
19.04.2006 Differential inequalities of the order parameter and the precolation treshold I, Tonći Antunović (TU Chemnitz), 15:30, Room 41/538
12.04.2006 Sharpness of the Phase Transition in Percolation Models, Tonći Antunović (TU Chemnitz), 15:30, Room 41/538
05.04.2006 Absolutely continuous spectrum for periodic magnetic operators, Michael Gruber (TU Chemnitz), 15:30, Room 41/538
Wintersemester 2005/2006
24.01.2006 Cantorsche und Bandspektren für periodische Quantengraphen mit magnetischen Feldern, Konstantin Pankrashkin (Humnbold Universität Berlin), 15:30, Room 41/538
15.11.2005 Unter Schranken an den Eigenwertabstand bei Schroedingeroperatoren mit singulaeren Potentialen, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
05.04.2005 Twisting vs. bending in quantum waveguides, David Krejcirik (Czech Technical University in Prague), 15:30, Room 41/538
Abstract: english
01.11.2005 Lattice approximation of a surface integral and derivation of a magnetic force formula, A. Schlömerkemper (Max-Planck-Institut Leipzig), 15:30, Room 41/538
Abstract: english
25.10.2005 Wegner estimate for sparse and other generalized alloy type potentials, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
18.10.2005 Lifshitz asymptotics for percolation graph Hamiltonians II, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
Sommersemester 2005
20.09.2005 $q$-functional equations and excursion moments, Christoph Richard (Uni Bielefeld), 15:30, Room 41/538
13.09.2005 Zentrale Grenzwertsaetze fuer Diffusionen auf periodischen Unter-Mannigfaltigkeiten von $R^N$, Brice Franke (RU Bochum), 15:30, Room 41/538
Abstract: deutsch
12.07.2005 On some properties of Schroedinger eigenvalues, Kresimir Veselić (Fernuni Hagen), 15:30, Room 41/538
Abstract: english
28.06.2005 Measure perturbations of Dirichlet forms, Peter Stollmann (TU Chemnitz), 15:30, Room 41/538
21.06.2005 Random Walks on the finite components of random Partial Graphs of Transitive Graphs, Florian Sobiecky (TU Graz), 15:30, Room 41/538
Abstract: english
14.06.2005 Lower bounds for eigenvalue gaps and gradients of eigenfunctions for Hamiltonians with singular potentials, Ivan Veselić (TU Chemnitz), 15:30, Room 41/538
Abstract: english
07.06.2005 Do Pisot substitutions generate model sets?, Bernd Sing (Uni Bielefeld), 15:30, Room 41/538
Abstract: english
31.05.2005 Numerical studies of the scaling of the smallest Lyapunov exponent in disordered systems, Dr. Viktor Cerovski (TU Chemnitz), 15:30, Room 41/538
10.05.2005 Stoerungstheorie fuer Lyapunov Exponent von Produkten symplektischer Matrizen, Prof. Dr. H. Schulz-Baldes (Uni Erlangen), 13:45, Room 41/538
03.05.2005 Locally deformed quantum wires: resonaces and scattering II, Dr. Sylwia Kondej, 17:15, Room 41/538
26.04.2005 Das Avalanche Prinzip, Matthias Keller (TU Chemnitz), 15:30, Room 41/538
19.4.2005 Energy-Minimizing Microstructures in Multiphase Elastic Solids, Dr. Isaac Vikram Chenchiah (MPI Leipzig), 17:15, Room 41/538
Abstract: english
12.04.2005 Locally deformed quantum wires: resonaces and scattering, Dr. Sylwia Kondej, 17:15, Room 41/538
05.04.2005 Lifshitz asymptotics for percolation graph Hamiltonians I, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
Wintersemester 2004/2005
25.01.2005 Stabilität Gaußscher Abschätzungen für Propagatoren unter Potentialstörungen, Dr. Hendrik Vogt (TU Dresden), 14:00, Room 41/538
18.01.2005 Geometrische Aspekte von Magnetfeldern, Dr. M. Gruber (Augsburg), 17:15, Room 41/538
11.01.2005 Photoeffekt und Quantenelektrodynamik, Dr. Heribert Zenk (LMU München), 17:15, Room 41/538
Abstract: deutsch
04.01.2005 Integrality of L2-Betti numbers, Prof. Dr. Thomas Schick (Uni Göttingen), 13:30, Room 41/538
Abstract: english
30.11.2004 Local resolvent spectral estimates for large coupling limits, Luka Grubišić (Fernuni Hagen), 17:15, Room 41/538
25.11.2004 Unerwartete ausgedehnte Zustände in zufälligen Medien, David Damanik (Caltech), 16:00 Room 2/B202 (CMC)
12.10.2004 Spektrale Mittelung mittels zufälliger, geometrischer Störungen, Ivan Veselić (TU Chemnitz), 16:00, Room 41/538
Sommersemester 2004
22.06.2004 Quasicrystals, Adnene Besbes (Paris VII), 17:15, Room 41/538
09.06.2004 Metrisierbarkeit schwacher Topologien, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
02.06.2004 Das Limiting absorption principle II, Mario Helm (TU Chemnitz), 17:15, Room 41/538
26.05.2004 Das Limiting absorption principle I, Mario Helm (TU Chemnitz), 17:15, Room 41/538
12.05.2004 On positive solutions to semilinear, second order, elliptic inequalities in unbounded domains, Vitali Liskevich (Bristol), 17:15, Room 41/538
07.04.2004 Generische Mengen in Räumen von Maßen, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
Wintersemester 2003/2004
18.02.2004 Graphen als Grenzwert von Mannigfaltigkeiten: Spektrale Konvergenz, Olaf Post (RWTH Aachen), 17:15, Room 41/538
Abstract: deutsch
07.01.2004 Anomalous Transport in Disordered Dynamical Systems, Günter Radons (TU Chemnitz), 17:15, Room 41/538
Abstract: english
03.12.2003 Gummi, blinde Ameisen und Spektraleigenschaften des Laplace-Operators auf Perkolationsgraphen, Peter Müller (Uni Göttingen), 14:00, Room 41/538
Abstract: deutsch
05.11.2003 Schrödingeroperatoren mit zufaälliger Abweichung von den Gitterpositionen, Mario Helm (TU Chemnitz), 17:15, Room 41/538
22.10.2003 Spektral-Asymptotik magnetischer Schroedinger Operatoren, Simone Warzel (Uni Erlangen-Nürnberg), 17:15, Room 41/538
Abstract: deutsch
Sommersemester 2003
16.07.2003 Abschätzungen für die Spektrale Verschiebungsfunktion von einem kompakt getragenen Potential, Ivan Veselić (Caltech), 19:15, Room 41/538
09.07.2003 Deterministische Methoden zum Beweis von Lokalisierung für Schrödingeroperatoren, Gunter Stolz (UAB Birmingham), 19:15, Room 41/538
Abstract: deutsch
25.06.2003 Dense Dirac combs in Euclidean space with pure point diffraction, Christoph Richard (), 19:15, Room 41/538
Abstract: english
21.05.2003 Neue Ergebnisse zu den Lieb-Thirring Ungleichungen, Dirk Hundertmark (University of Illinois), 19:15, Room 41/538
Abstract: deutsch
23.04.2003 Dirichletformen, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
09.04.2003 Singular Schrödinger operators: strong coupling and geometrically induced spectrum, P. Exner (Nuclear Physics Institute of the ASCR), 17:15, Room 41/538
Abstract: english
Wintersemester 2002/2003
05.02.2003 Dirichletformen, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
15.01.2003 Das parabolische Andersonmodell, Bernd Metzger, 17:15, Room 41/538
08.01.2003 Orthogonale Polynome auf der reellen Achse und dem Einheitskreis, David Damanik (Caltech), 17:15, Room 41/538
11.12.2002 TBA, Steffen Klassert (TU Chemnitz), 17:15, Room 41/538
04.12.2002 Lokale Reduktion des Zustandsraumes in Differentialgleichungssystemen aus der Reaktionskinetik, S. Handrock, 17:15, Room 41/538
06.11.2002 Lineare Repetitivität, Daniel Lenz (TU Chemnitz), 17:15, Room 41/538
30.10.2002 Funktionalanalytisches zur Diffraktion, Daniel Lenz (TU Chemnitz), 17:15, Room 41/538
23.10.2002 Singulär stetiges Spektrum für generische Quasikristalle, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
Sommersemester 2002
11.09.2002 Geometric Aspects of Nonpositively Curved Plane Tessellations, Norbert Peyerimhoff (Bochum), 17:15, Room 41/538
Abstract: english
18.07.2002 Spectral and Scattering Theory of Corrugated Boundaries, Yoram Last (Hebrew University Jerusalem), 17:15, Room 41/538, CMC
Abstract: english
10.07.2002 Wärmeleitung mit zufälligen Quellen, Bernd Metzger, 11.15, Room 41/538
19.06.2002 Eine Bedingung von Boshernitzan, Daniel Lenz (TU Chemnitz), 17:15, Room 41/538
05.06.2002 Random Quantum Waveguides, Peter Stollmann (TU Chemnitz), 17:15, Room 41/538
06.05.2002 On positive solutions of semilinear equations with measurable coefficients in unbounded domains, V. Liskevich (Bristol), 15:30, Room 41/538
Abstract: english
17.04.2002 Fractional Moments und Lokalisierung im Kontinuum, G. Stolz (UAB und CNRS Paris), 17:15, Room 41/538
10.04.2002 Funktionalkalküle für unbeschränkte Operatoren in Banachräumen mit Anwendung auf Stokes Operatoren, A. Noll (TU-Darmstadt), 17:15, Room 41/538
Abstract: deutsch
06.02.2002 Über die Spektren selbstadjungierter Erweiterungen, J. F. Brasche (Chalmers Universität, Göteborg), 17:15, Room 41/538
Abstract: deutsch

 

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