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Research Seminar Optimization and Approximation

The seminars are held every Wednesday between 9.15 and 10.45 A.M.
They are taking place in room 705 of the building Reichenhainer Str. 41.

The talks from this semester are:
Date Lecturer Subject
11.07.2012 H.V. Boncea
27.06.2012 S. Banert
06.06.2012 A. Eckardt
23.05.2012 A. Heinrich Double smoothing again
16.05.2012 O. Wilfer Fast multiple splitting algorithms for convex optimization
09.05.2012 C. Hendrich On the acceleration of the double smoothing technique for unconstrained convex optimization problems
02.05.2012 Dr. S.-M. Grad A method for solving a class of vector optimization problems
25.04.2012 Conf. Dr. N. Popovici A special class of generalized convex functions with applications in vector optimization
18.04.2012 Dr. E.R. Csetnek A Brøndsted-Rockafellar Theorem for Diagonal Subdifferential Operators
04.04.2012 Prof. Dr. G. Wanka
PD Dr. habil. R. I. Boţ		 Semester planning
WINTER SEMESTER 2011/2
21.03.2011
10:00		 C. Hendrich A Double Smoothing Technique for Solving Nondifferentiable Convex Optimization Problems [Defense of Diploma thesis]
01.02.2012 E. L. Pop Alternative generalized Wolfe type and Mond-Weir type vector duality
18.01.2012
09:30		 C. Hendrich A Double Smoothing Technique for Solving Nondifferentiable Convex Optimization Problems
04.01.2012 O. Wilfer Zielkriterien für Job-Shop Scheduling-Probleme
07.11.2011 Dr. E. R. Csetnek Conjugate duality and the control of linear discrete systems
30.11.2011 L. Cioban Revisiting the construction of gap functions for variational inequalities and equilibrium problems via conjugate duality
23.11.2011 Conf. Dr. N. Popovici Reducibility of vector variational inequalities defined by bifunctions
09.11.2011 O. Wilfer Job-shop scheduling problems
02.11.2011 Dr. S.-M. Grad Properties of the diagonal subdifferential operators
19.10.2011 A. Heinrich Multi Kernel Learning
12.10.2011 PD Dr. habil. R. I. Boţ Semester planning
SUMMER SEMESTER 2011
27.07.2011
09:00		 Prof. Dr. H. Bauschke On averages of firmly nonexpansive mappings
13.07.2011 L. Cioban Duality for ε-variational inequalities via the subdifferential calculus
06.07.2011 A. Heinrich Support Vector Regression in Approximate Policy Iteration
22.06.2011 Dr. S.-M. Grad
N. Lorenz		 Approaching the maximal monotonicity of bifunctions via representative functions
Support Vector Regression
01.06.2011 A. Heinrich Support Vector Machines
25.05.2011 N. Lorenz Optimization problems in statistical Learning
18.05.2011 S.C. László On the generalized parallel sum of two maximal monotone operators of Gossez type (D)
11.05.2011 Members of the Working Group Short lectures on current research
04.05.2011 Members of the Working Group Short lectures on current research
27.04.2011 Dr. E. R. Csetnek Error bound results for convex inequality systems via conjugate duality
20.04.2011 N. Lorenz Presentation of the PhD thesis structure
06.04.2011 Prof. Dr. G. Wanka
PD Dr. habil. R. I. Boţ		 Semester planning
WINTER SEMESTER 2010/1
17.03.2011
10:00		 O. Wilfer Dualitätsuntersuchungen mittels erweiterten Lagrange-Funktionen bei Optimierungsaufgaben [Defense of Diploma thesis]
02.02.2011 O. Wilfer Dualitätsuntersuchungen mittels erweiterten Lagrange-Funktionen bei Optimierungsaufgaben
26.01.2011 A. Heinrich Approximating DP via SVR
19.01.2011 Dr. S.-M. Grad On robust optimization
08.12.2010 M. Wendland A complete characterization of strong duality in nonconvex optimization with a single constraint
01.12.2010 Members of the Working Group Short lectures on current research
24.11.2010 O. Wilfer Duality investigations for optimization problems via augmented Lagrangians [presentation of a Diploma theme]
10.11.2010 S.C. László Generalized monotone operators, generalized convex functions and closed countable sets
03.11.2010 A. Heinrich State selection in approximate dynamic programming
20.10.2010 J. Werner Darstellung und Analyse des Black-Litterman-Verfahrens als Erweiterung der klassischen Portfoliooptimierung nach Markowitz" [Defense of Diploma thesis]
13.10.2010 Prof. Dr. G. Wanka
Dr. S.-M. Grad		 Semester planning
SUMMER SEMESTER 2010
30.06.2010 O. Wilfer Portfolio optimization problems through the risk measures Value-at-Risk and Conditional Value-at-Risk [Semester work]
16.06.2010 Dr. E.R. Csetnek On a zero duality gap result in extended monotropic programming
09.06.2010 N. Lorenz Optimality conditions for portfolio optimization problems
02.06.2010 S. Müller Presentation of a Diploma theme: Evaluation of the Order Picking Systems
12.05.2010 A.R. Frătean Looking for appropriate qualification conditions for subdifferential formulae and dual representations for convex risk measures
05.05.2010 D.M. Nechita On the Dini-Hadamard subdifferential of the difference of two functions
28.04.2010 J. Werner Presentation of a Diploma theme: The Black-Litterman model
21.04.2010
Rh. 70/B202		 R. Schnaubelt Lösungszugänge zu Tourenproblemen [Defense of Diploma thesis]
07.04.2010 Prof. Dr. G. Wanka
PD Dr. habil. R. I. Boţ		 Semester planning
WINTER SEMESTER 2009/10
03.02.2010 A. Heinrich Markov decision processes
27.01.2010 Members of the Working Group Short lectures on current research
13.01.2010 S. Müller Bewertung von Kommissionierungsystemen
06.01.2010 Dr. A. Lkhamsuren An Application of the oriented distance function to vector variational inequalities
16.12.2009 R. Schnaubelt How to solve the Vehicle Routing problem?
08.12.2009
15:30
Rh. 41/638		 E. R. Csetnek Overcoming the failure of the classical generalized interior-point regularity conditions in convex optimization. Applications of the duality theory to enlargements of maximal monotone operators [PhD defense]
02.12.2009 E. R. Csetnek Overcoming the failure of the classical generalized interior-point regularity conditions in convex optimization. Applications of the duality theory to enlargements of maximal monotone operators
25.11.2009 A. Heinrich Approximating Markov decision processes using Support Vector Regression
11.11.2009 Dr. A. Lkhamsuren Perturbation approach to generalized Nash equilibrium problems
28.10.2009 Dr. S.-M. Grad Lower semicontinuous type regularity conditions for subdifferential calculus
14.10.2009 Prof. Dr. G. Wanka
PD Dr. habil. R. I. Boţ		 Semester planning
SUMMER SEMESTER 2009
17.09.2009
10:00
Rh. 41/733		 L. Eiserbeck Entwicklung von Prognoseverfahren für die Dynamische Disposition [Defense of Diploma thesis]
10.07.2009
10:00/B202		 Prof. Dr. B. Mordukhovich New developments and applications of variational analysis
01.07.2009 E. R. Csetnek Overcoming the failure of the classical generalized interior-point regularity conditions in convex optimization. Applications of the duality theory to enlargements of maximal monotone operators [III]
17.06.2009 L. Eiserbeck Dynamische Diagnose im Handel
10.06.2009
Rh. 41/638		 A. Heinze Bestimmung effizienter Wertpapier-Portfolios mittels eines modifizierten ”Critical Line” - Algorithmus” [Defense of Diploma thesis]
03.06.2009 E. R. Csetnek Overcoming the failure of the classical generalized interior-point regularity conditions in convex optimization. Applications of the duality theory to enlargements of maximal monotone operators [II]
27.05.2009 E. R. Csetnek Overcoming the failure of the classical generalized interior-point regularity conditions in convex optimization. Applications of the duality theory to enlargements of maximal monotone operators [I]
13.05.2009 A. Heinze Bestimmung effizienter Wertpapier-Portfolios mittels eines modifizierten ”Critical Line” - Algorithmus”
08.04.2009 Prof. Dr. G. Wanka
PD Dr. habil. R. I. Boţ		 Semester planning
WINTER SEMESTER 2008/9
04.02.2009 A. Heinrich Reinforcement Learning im Data Mining
28.01.2009 PD Dr. habil. R. I. Boţ
E. R. Csetnek		 Short lectures on current research
18.12.2008
15:30
Rh. 70/B202		 Dr. R. I. Boţ Minimality in partially ordered vector spaces
10.12.2008 L. Eiserbeck Presentation of a Diploma theme
03.12.2008 A. Heinze The Critical line-Algorithm and Extensions
26.11.2008 A. Heinrich
Dr. S.-M. Grad 		Short lectures on current research
13.11.2008
13:45
Rh. 70/B202		 Dr. R. I. Boţ Properties of the relative interior
12.11.2008 A. Capătă On vector equilibrium problems and applications
05.11.2008 R. Csetnek On two properties of enlargements of maximal monotone operators
22.10.2008 A. Heinrich Optimal convex combination of kernels
15.10.2008 Prof. Dr. G. Wanka
Dr. R. I. Boţ		 Semester planning
SUMMER SEMESTER 2008
16.07.2008 Prof. Dr. G. Wanka
Dr. R. I. Boţ		 Reports on the conferences ISOLDE XI and WCNA 2008
19.06.2008
16:00
Rh. 70/B202		 Dr. R. I. Boţ Regularity conditions for conjugate duality for convex optimization problems
18.06.2008 A. Grad Quasi-relative interior-type constraint qualifications ensuring strong Lagrange duality for optimization problems with cone and affine constraints
11.06.2008 K. Urbach Naturanaloge Optimierungsalgorithmen
04.06.2008 M. Epperlein Support Vector Regression zur Approximation von Zinskurven
28.05.2008 Dr. S.-M. Grad Regularity conditions for formulae of biconjugate functions
21.05.2008 A. Heinrich Actual results of the project with Continental AG
07.05.2008 N. Lorenz Optimization problems in statistical learning: duality and optimality conditions
23.04.2008 E. R. Csetnek An application of the bivariate inf-convolution formula to enlargements of monotone operators
16.04.2008 Prof. Dr. G. Wanka
Dr. R. I. Boţ		 Semester planning
WINTER SEMESTER 2006/7
26.02.2008
10:00		 Dr. R. I. Boţ On Rockafellar's conjecture on the maximality of the sum of two maximal monotone operators in general Banach spaces
30.01.2008 A. Heinrich Preprocessing und Bild-Klassifikation mit Support Vector Machines
16.01.2008 Dr. R. I. Boţ On an open problem regarding totally Fenchel unstable functions in finite dimensional spaces
09.01.2008 Members of the Working Group Short lectures on current research
13.12.2007
16:00		 I.B. Hodrea Farkas-type results for convex and non-convex inequality systems
05.12.2007 Prof. Dr. G. Kassay On equivalent conditions for the existence of solutions of equilibrium problems
28.11.2007 I.B. Hodrea
A. Heinrich 		Farkas-type results for convex and non-convex inequality systems
Reproducing kernel Hilbert spaces for Support Vector Learning
15.11.2007
09:15		 Dr. A. Löhne A characterization of maximal monotone operators
01.11.2007
10:00 		J. Stoye Untersuchung des Einflusses von Kombinationen von Fertigungs- und Montageparameter auf die Prüfparameter der Piezo-Pumpe-Düse
24.10.2007 E.R. Csetnek
Dr. S.-M. Grad		 Short lectures on current research
10.10.2007 Prof. Dr. G. Wanka
Dr. R. I. Boţ		 Semester planning
SUMMER SEMESTER 2007
11.07.2007 J. Stoye

A. Heinrich 		Untersuchung des Einflusses von Kombinationen von Fertigungs- und Montageparameter auf die Prüfparameter
der Piezo-Pumpe-Düse
Inhalt des geplanten Forschungsvorhabens und Ansätze zu SVR-Methoden
20.06.2007 B. Bolormaa Portfolio selection problem with minimax type risk function
13.06.2007 A. Lkhamsuren Gap functions for vector equlibrium problems via conjugate duality
06.06.2007 E. R. Csetnek Sequential optimality conditions for composed convex optimization problems
23.05.2007 N. Lorenz Duality for chance-constrained problems
16.05.2007 J. Fan Duality for DC location problems
09.05.2007 I. B. Hodrea Formulae for ε-subdifferentials of composed convex functions
25.04.2007 Dr. S.-M. Grad A general approach for studying duality in multiobjective optimization
11.04.2007 Dr. R. I. Boţ Sequential optimality conditions in convex programming via perturbation approach
04.04.2007 Dr. R. I. Boţ Semester planning
WINTER SEMESTER 2006/7
31.01.2007 N. Lorenz Optimality conditions for portfolio optimization problems with convex deviation measures as objective functions
24.01.2007 Jielei Fan DC location problems
17.01.2007 Dr. R. I. Boţ,
E. R. Csetnek		 Short lectures on current research
10.01.2007 R. Scherf Lagrangians and duality
13.12.2006 I. Windrich Gap Funktionen für vektorielle Variationsungleichungen und Equilibrium Probleme
06.12.2006 J. Winkler Konjugierte Dualität bei zusammengesetzten konvexen Funktionen in reellen linearen Räumen
29.11.2006 Prof. Dr. G. Kassay Well-posed equilibrium problems
15.11.2006 A. Moldovan On quasi relative interior constraint qualification in infinite dimensional spaces
08.11.2006 Dr. S.-M. Grad,
I. B. Hodrea,
E. R. Csetnek		 Short lectures on current research
01.11.2006 A. Heinrich Entwicklung von Optimierungsstrategien zum automatischen Parametrisieren von Motorsteuergeräten [Defense of diploma thesis]
25.10.2006 Prof. Dr. G. Mastroeni Some topics in vector optimization via image space analysis
20.10.2006
at 11:30		 Prof. Dr. A. Maugeri Infinite dimensional duality and applications
11.10.2006 Prof. Dr. G. Wanka
Dr. R. I. Boţ		 Report on the research trip to Pisa/Venice. Semester planning
SUMMER SEMESTER 2006
26.07.2006
at 09:15 		A. Dumitru A new Fenchel dual problem in vector optimization
12.07.2006 S.-M. Grad New insights into conjugate duality
05.07.2006 A. Lkhamsuren A duality approach to gap functions for variational inequalities and equilibrium problems
28.06.2006 I.B. Hodrea
Optimality conditions for multiobjective optimization problems with composed convex functions
E.R. Csetnek A new condition for maximal monotonicity via representative functions
21.06.2006 A. Heinrich Bestimmung optimaler Parameter von Kennfeldern bei Motorsteuergeräten
14.06.2006 Dr. R.I. Boţ Brézis-Haraux-type approximation of the range of a monotone operator composed with a linear mapping
31.05.2006 S. Rösch Erweiterung des Mond-Weir-Dualitätskonzepts für konvexe Optimierungsaufgaben
24.05.2006 S. Hilbig Konstruktion von Schranken beim verallgemeinerten Weber Problem unter Ungewissheit
17.05.2006 N. Lorenz Deviation and risk measures (II)
Dr. R. I. Boţ On a constraint qualification for the maximality of monotone operators
10.05.2006 N. Lorenz Deviation and risk measures (II)
03.05.2006 W. Metzler Dualität in der Standortoptimierung
26.04.2006 I. Windrich Dualität in der Portfoliooptimierung
12.04.2006 Prof. Dr. G. Wanka
Dr. R. I. Boţ		 Semester planning
WINTER SEMESTER 2005/6
07.03.2006
at 11:00		 Lect. Dr. N. Popovici Structure of efficient sets in multicriteria optimization
01.02.2006 E. R. Csetnek Fenchel duality in real linear spaces (II)
25.01.2006 E. R. Csetnek Fenchel duality in real linear spaces (I)
18.01.2006 W. Metzler Dualität in der Standortoptimierung
11.01.2006 I. Windrich Dualität in der Portfoliooptimierung
14.12.2005 Jielei Fan Conjugate functions for convex and nonconvex duality
07.12.2005 S. Sugiarto Principles of vector optimization and scalarization
30.11.2005 Participation of the working group at the PhD Students' Workshop at TU Freiberg
23.11.2005 S.-M. Grad Weaker constraint qualifications in maximal monotonicity
09.11.2005 A. Lkhamsuren On gap functions for equilibrium problems
I. B. Hodrea Farkas-type results for composed convex functions
02.11.2005 I. B. Hodrea Farkas-type results for fractional programming
26.10.2005 N. Lorenz Portfoliooptimierung und Stochastik (II)
19.10.2005 N. Lorenz Portfoliooptimierung und Stochastik (I)
12.10.2005 Prof. Dr. G. Wanka
Dr. R. I. Boţ		 Semester planning
SUMMER SEMESTER 2005
10.08.2005
at 11.30		 I. B. Hodrea Image space approach. Overwiev
13.07.2005 S.-M. Grad Maximal monotonicity for the precomposition with a linear operator
29.06.2005 P. Teichmann Convex Risk Measures for Portfolio Optimization and Concepts of Flexibility (II)
22.06.2005 J. Winkler Convex Risk Measures for Portfolio Optimization and Concepts of Flexibility (I)
08.06.2005 Dr. R. I. Boţ The conjugate of the pointwise maximum of two convex functions
01.06.2005 Prof. Dr. G. Wanka Conjugacy in Convex Analysis (II)
25.05.2005 Prof. Dr. G. Wanka Conjugacy in Convex Analysis (I)
11.05.2005 A. Lkhamsuren Variational principles for vector equilibrium problems related to the conjugate duality
27.04.2005 S.-M. Grad A weak constraint qualification in maximal monotonicity
13.04.2005 Members of the Working Group Short lectures on current research
06.04.2005 I. B. Hodrea An overview on the utility functions
WINTER SEMESTER 2004/5
02.02.2005 R. Scherf "Störungsansätze zur Konstruktion von Dualproblemen"
26.01.2005 A. Lkhamsuren "Conjugate duality in vector optimization and its applications to vector variational inequalities"
19.01.2005 Members of the Working Group Short lectures on current research
12.01.2005 S.-M. Grad "Another scalarization method in multiobjective optimization"
15.12.2004 Members of the Working Group Short lectures on current research
08.12.2004 R. Chares "Duality for fractional programming"
01.12.2004 I. B. Hodrea "New insights on Farkas-type results"
24.11.2004 Assoc. Prof. G. Kassay "On approximate equilibrium problems"
11.11.2004 E. T. Vargyas "Duality for convex composed programming problems"
10.11.2004 A. Lkhamsuren "On relations between the conjugate duality and gap functions for variational inequalities"
Prof. R. Enkhbat "The quasiconvex programming"
27.10.2004 Dr. R. I. Boţ "On new closed cone constraint qualification"
S.-M. Grad "Fenchel-Langrange versus geometric duality in convex optimization"
20.10.2004 Members of the Working Group Short lectures on current research
13.10.2004 Dr. R. I. Boţ "Fenchel's duality theorem for nearly convex functions"