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Professorship Applied Mathematics (Approximation Theory)
Talks

Conferences and Talks

[since 1999]

2018

S. Bitterlich, R.I. Boţ, E.R. Csetnek, G. Wanka - Proximal Alternating Minimization Algorithm (PAMA), Winter School Modern Methods in Nonsmooth Optimization Würzburg, Germany, 26.02-02.03.2018 (Poster: S. Bitterlich)

2017

S. Bitterlich, R.I. Boţ - Proximal-AMA and application in image deblurring and denoising, Third Central European Set-Valued and Variational Analysis Meeting, Chemnitz, Germany, 25.11.2017 (Lecturer: S. Bitterlich)

S.-M. Grad, O. Wilfer - Proximal methods for solving nonlinear minimax location problems with perturbed minimal time functions via conjugate duality, Third Central European Set-Valued and Variational Analysis Meeting, Chemnitz, Germany, 25.11.2017 (Lecturer: O. Wilfer)

S.-M. Grad - A forward-backward method for solving vector optimization problems, 18th French - German - Italian Conference on Optimization, Paderborn, Germany, 25-28.09.2017 (Lecturer: S.-M. Grad)

S.-M. Grad - An inertial forward-backward method for solving vector optimization problems, CMO-BIRS Workshop Splitting Algorithms, Modern Operator Theory, and Applications, Oaxaca, Mexico, 17-22.09.2017 (Lecturer: S.-M. Grad)

S.-M. Grad - A forward-backward method for solving vector optimization problems, International Conference on Operations Research - OR2017, Berlin, Germany, 05-08.09.2017 (Lecturer: S.-M. Grad)

G. Wanka, O. Wilfer - Solving minimax location problems via epigraphical projection II, International Symposium on Locational Decisions - ISOLDE XIV, Toronto/Hunstville, Canada, 10-14.07.2017 (Lecturer: O. Wilfer)

G. Wanka, O. Wilfer - Solving minimax location problems via epigraphical projection I, International Symposium on Locational Decisions - ISOLDE XIV, Toronto/Hunstville, Canada, 10-14.07.2017 (Lecturer: G. Wanka)

G. Wanka, O. Wilfer - Solving minimax location problems via epigraphical projection, DACH Mini Workshop "Advances in Nonsmooth Optimization", University of Vienna, Austria, 29.06.2017 (Lecturer: G. Wanka)

S. Bitterlich - Smoothing algorithms for convex optimization problems, DACH Mini Workshop "Advances in Nonsmooth Optimization", University of Vienna, Austria, 29.06.2017 (Lecturer: S. Bitterlich)

G. Wanka - From scalar to vector duality - directions of development and perspectives, Minisymposium Vector Optimization, Erlangen, Germany, 23.06.2017 (Lecturer: G. Wanka)

2016

S.-M. Grad - Characterizations of minimality notions by means of quasi interior, Second Central European Set-Valued and Variational Analysis Meeting, Jena, Germany, 03.12.2016 (Lecturer: S.-M. Grad)

S.-M. Grad - An inertial proximal point method for vector optimization problems, Seminar Optimierung, Facultät für Mathematik, University of Vienna, Austria, 01.12.2016 (Lecturer: S.-M. Grad)

S.-M. Grad - An inertial proximal point method for vector optimization problems, OR 2016 Konferenz, Hamburg, Germany, 30.08-02.09.2016 (Lecturer: S.-M. Grad)

S.-M. Grad - Closedness type regularity conditions in convex optimization and beyond, Sixth International Conference in Optimization Theory and its Applications - ALEL 2016, Cartagena, Spain, 06-08.06.2016 (Lecturer: S.-M. Grad)

S.-M. Grad - About closedness type regularity conditions in convex optimization, International Conference on Bilevel Optimization and Related Topics in honor of Stephan Dempe's 60th birthday - ICBO16, Dresden, Germany, 04-06.05.2016 (Lecturer: S.-M. Grad)

2015

S.-M. Grad - An inertial proximal point method for vector optimization problems, Central European Set-Valued and Variational Analysis Meeting, Göttingen, Germany, 24.10.2015 (Lecturer: S.-M. Grad)

S.-M. Grad - An iterative method for solving vector optimization problems, EURO-XXVII Konference, Glasgow, United Kingdom, 12.-15.07.2015 (Lecturer: S.-M. Grad)

S.-M. Grad - About closedness type regularity conditions in convex optimization, 13th EUROPT Workshop - Advances in Continuous Optimization, Edinburgh, United Kingdom, 08.-10.07.2015 (Lecturer: S.-M. Grad)

O. Wilfer - Duality results for extended multifacility minimax location problems, Seminar Optimization, University of Vienna, Austria, 26.03.2015 (Lecturer: O. Wilfer)

O. Wilfer - Duality statements for extended minimax location problems, Workshop Optimization, Ehrenfriedersdorf, Germany, 26-27.02.2015 (Lecturer: O. Wilfer)

2014

S.-M. Grad, G. Wanka - On biconjugates of infimal functions, International conference on Operations Research - OR2014, Aachen, Germany 02-05.09.2014 (Lecturer: S.-M. Grad)

G. Wanka, O. Wilfer - Duality for multi-composed convex programming problems, International Congress of Mathematicians, Seoul, Korea, 13-21.08.2014 (Lecturer: G. Wanka)

S.-M. Grad, E.L. Pop - Generalizations of the weak minimality, The fourth Latin American Workshop on Optimization and Control - LAWOC 2014, Lima, Peru, 15-18.07.2014 (Lecturer: S.-M. Grad)

G. Wanka, O. Wilfer - Duality for convex continuous location problems via multi-composed optimization II, 11th International Symposium on Locational Decisions - ISOLDE XII, Naples/Capri, Italy, 16-20.06.2014 (Lecturer: O. Wilfer)

G. Wanka, O. Wilfer - Duality for convex continuous location problems via multi-composed optimization I, 11th International Symposium on Locational Decisions - ISOLDE XII, Naples/Capri, Italy, 16-20.06.2014 (Lecturer: G. Wanka)

R.I. Boţ, S.-M. Grad, G. Wanka - Multiobjective duality for classical linear vector optimization problems revisited Leipzig University of Applied Sciences, Germany, 18.03.2014 (Lecturer: S.-M. Grad)

2013

S.-M. Grad, E.L. Pop - Vector duality for convex vector optimization problems by means of the quasi interior of the ordering cone, International Conference on Operations Research - OR2013, Rotterdam, Netherlands, 03-06.09.2013 (Lecturer: S.-M. Grad)

R.I. Boţ, C. Hendrich - A Douglas-Rachford type primal-dual method for solving inclusions with mixtures of composite and parallel-sum type monotone operators, European Conference on Computational Optimization - EUCCO 2013, Chemnitz, Germany, 17-19.07.2013 (Lecturer: C. Hendrich)

R.I. Boţ S.-M. Grad - Approaching the Maximal Monotonicity of Bifunctions via Representative Functions, South Pacific Optimization Meeting - SPOM2013, Newcastle, Australia, 09-12.02.2013 (Lecturer: R.I. Boţ)

R.I. Boţ - Convex Analysis in Imaging, Optimization of Planet Earth Afternoon, Mathematics of Planet Earth 2013, Newcastle, Australia, 09-12.02.2013 (Lecturer: R.I. Boţ)

2012

R.I. Boţ - A Fenchel Duality-Based Double Smoothing Technique for Solving Convex Optimization Problems with Applications to Image Processing, Canberra Symposium on Regularisation Integrating Chemnitz Symposium on Inverse Problems on Tour, Canberra, Australia, 19-24.11.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - Monotone Operatoren aus dem Blickwinkel der konvexen Optimierung, Paris-Ladron University of Salzburg, Austria, 06.11.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - Eingeladener Vortrag: Auf Fenchel-Dualität basierende Regularisierungstechniken zur Lösung nichtdifferenzierbarer konvexer Optimierungsaufgaben mit Anwendungen in der Bildverarbeitung, Johannes Kepler University Linz, Austria, 22.10.2012 (Lecturer: R.I. Boţ)

R.I. Boţ, S.-M. Grad - Approaching the maximal monotonicity of bifunctions via representative functions, The 21st International Symposium on Mathematical Programming - ISMP2012, Berlin, Germany, 19-24.08.2012 (Lecturer: R.I. Boţ)

R.I. Boţ, S.-M. Grad, G. Wanka - Classical linear vector optimization duality revisited, The 21st International Symposium on Mathematical Programming - ISMP2012, Berlin, Germany, 19-24.08.2012 (Lecturer: S.-M. Grad)

R.I. Boţ, A. Heinrich, G. Wanka - The support vector machines approach via Fenchel-type duality, The 21st International Symposium on Mathematical Programming - ISMP2012, Berlin, Germany, 19-24.08.2012 (Lecturer: A. Heinrich)

R.I. Boţ, E.R. Csetnek - Conjugate duality and the control of linear discrete systems, The 21st International Symposium on Mathematical Programming - ISMP2012, Berlin, Germany, 19-24.08.2012 (Lecturer: E.R. Csetnek)

R.I. Boţ, C. Hendrich - A double smoothing technique for solving nondifferentiable convex optimization problems, The 21st International Symposium on Mathematical Programming - ISMP2012, Berlin, Germany, 19-24.08.2012 (Lecturer: C. Hendrich)

R.I. Boţ, S.-M. Grad, G. Wanka - Revisiting the classical linear vector optimization duality, The IX Brazilian Workshop on Continuous Optimization, Luis Correia - Piaui, Brasil, 29.07-04.08.2012 (Lecturer: S.-M. Grad)

R.I. Boţ: Auf Fenchel-Dualität basierende doppelte Regularisierungstechniken zur Lösung nichtdifferenzierbarer konvexer Optimierungsaufgaben mit Anwendungen in der Bildverarbeitung, Research Seminar Algorithmic and Discrete Mathematics, Deaprtment of Mathematics, Chemnitz University of Technology, Chemnitz, Germany, 27.06.2012 (Lecturer: R.I. Boţ)

R.I. Boţ, S.-M. Grad, G. Wanka - Classical linear vector optimization duality revisited, Constructive Nonsmooth Analysis and Related Topics, St. Petersburg, Russia, 18-23.06.2012 (Lecturer: S.-M. Grad)

R.I. Boţ, S.-M. Grad - Approaching the maximal monotonicity of bifunctions via representative functions, Constructive Nonsmooth Analysis and Related Topics, St. Petersburg, Russia, 18-23.06.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - Invited lectures series: Convex analysis with applications in inverse problems, Institut für Numerische und Angewandte Mathematik, Georg-August-University Göttingen, Germany, 11-14.06.2102 (Lecturer: R.I. Boţ)

R.I. Boţ - Auf Fenchel-Dualität basierende doppelte Regularisierungstechniken zur Lösung nichtdifferenzierbarer konvexer Optimierungsaufgaben mit Anwendungen in der Bildverarbeitung, University of Cologne, Germany, 07.05.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - Techniken der doppelten Regularisierung zur Lösung konvexer Optimierungsaufgaben mit Anwendung in der Bildverarbeitung, University Koblenz-Landau, Germany, 22.03.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - Über die Implementierung von doppelten Regularisierungstechniken zur Lösung nichtdifferenzierbarer konvexer Optimierungsaufgaben, University Bremen, Germany, 31.01.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - Über die Implementierung von doppelten Regularisierungstechniken zur Lösung nichtdifferenzierbarer konvexer Optimierungsaufgaben, Ernst-Moritz-Arndt-University Greifswald, Germany, 27.01.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - A Fenchel Duality-Based Double Smoothing Technique for Solving Convex Optimization Problems, Seminar on Applied Mathematics, Institute for Numerical and Applied Mathematics, Georg-August Universität Göttingen, Germany, 24.01.2012 (Lecturer: R.I. Boţ)

G. Wanka - Dualität und Konjugation-Eckpfeiler der Konvexen Analysis, Runge-Herglotz-Seminar of Applied Analysis, Institute of Mathematics, Georg-August Universität Göttingen, Germany, 23.01.2012 (Lecturer: G. Wanka)

R.I. Boţ - A Double Smoothing Technique for Solving Convex Optimization Problems with Applications to Image Processing, Leopold-Franzens-Universität, Innsbruck, Austria, 12.01.2012 (Lecturer: R.I. Boţ)

R.I. Boţ - A Fenchel Duality-Based Approach for Solving Optimization Problems Arising in Supervised Learning, Konrad-Zuse-Zentrum für Informationstechnik, Berlin, Germany, 05.01.2012 (Lecturer: R.I. Boţ)

2011

R.I. Boţ - Monotone Operatoren aus dem Blickwinkel der konvexen Optimierung, Fakultät für Mathematik, Informatik und Naturwissenschaften, RWTH Aachen, Germany, 12th December 2011 (Lecturer: R.I. Boţ)

G. Wanka - Duality for set-valued vector optimization, International Conference on Optimization, Theory, Algorithms and Applications in Economics, Centre de Recerca Matematica, Barcelona, Spain, 24th-28th October, 2011 (Lecturer: G. Wanka)

R.I. Boţ, S.-M. Grad, G. Wanka - Classical linear vector duality revisited, International Conference on Optimization, Theory, Algorithms and Applications in Economics, Centre de Recerca Matematica, Barcelona, Spain, 24th-28th October, 2011 (Lecturer: S.-M. Grad)

R.I. Boţ, S.-M. Grad - Approaching the maximal monotonicity of bifunctions via representative functions, International Conference on Optimization, Theory, Algorithms and Applications in Economics, Centre de Recerca Matematica, Barcelona, Spain, 24th-28th October, 2011 (Lecturer: R.I. Boţ)

R.I. Boţ - A Fenchel duality-based approach for solving optimization problems arising in supervised learning, Applied Mathematics Seminar, University of New South Wales, Sydney, Australia, 22nd September, 2011 (Lecturer: R.I. Boţ)

R.I. Boţ, S.-M. Grad, G. Wanka - Classical linear vector duality revisited, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: S.-M. Grad)

R.I. Boţ, E.R. Csetnek - On a zero duality gap result in extended monotropic programming, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: E.R. Csetnek)

R.I. Boţ, A. Heinrich, G. Wanka - Employing different loss functions for the classification of images via supervised learning, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: A. Heinrich)

R.I. Boţ, E.R. Csetnek - Eror bounds results for convex inequality systems via conjugate duality, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: R.I. Boţ)

G. Wanka - Duality for set-valued vector optimization, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: G. Wanka)

G. Wanka - Conjugate duality in multiobjective optimization, IV International conference "Mathematics, Its Applications and Mathematical Education" (MAME'11) Ulan-Ude, Baikal, Russia, 27th June-1st July, 2011 (Lecturer: G. Wanka)

R. I. Boţ - Über die Rolle der Qualifikationsbedingungen bei der Herleitung von dualen Darstellungen für konvexe Risikomae, Kolloquium des Instituts für Operations Research, Karlsruhe Institut of Technology, Karlsruhe, Deutschland, 20th January, 2011 (Lecturer: R. I. Boţ)

2010

R. I. Boţ, E. R. Csetnek - On a zero duality gap result in extended monotropic programming, International Conference on Advances in Optimization and Related Topics, Centre de Recerca Matematica, Barcelona, Spain, 29th November - 3rd December, 2010 (Lecturer: R. I. Boţ)

R. I. Boţ - Conjugate duality in convex optimization and beyond, 7th International Conference on Applied Mathematics - ICAM7, Baia Mare, Romania, 1st-4th September, 2010 (Lecturer: R. I. Boţ)

G. Wanka - Duality for linear multiobjective optimization - classical versus new results, The International Conference on Optimization, Simulation and Control - COSC 2010, Ulaanbaatar, Mongolia, 25th-28th July, 2010 (Lecturer: G. Wanka)

G. Wanka - Conjugate duality in multiobjective optimization, 24th European Conference on Operational Research - EURO-XXIV, Lisbon, Portugal, 11th-14th July, 2010 (Lecturer: G. Wanka)

R. I. Boţ, S.-M. Grad - Duality for vector optimization problems via a general scalarization, 24th European Conference on Operational Research - EURO-XXIV, Lisbon, Portugal, 11th-14th July, 2010 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek - On a zero duality gap result in extended monotropic programming, 24th European Conference on Operational Research - EURO-XXIV, Lisbon, Portugal, 11th-14th July, 2010 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad - Closedness type regularity conditions for surjectivity results involving the sum of two maximal monotone operators, 8th EUROPT Workshop - Advances in Continuous Optimization, Aveiro, Portugal, 09th-10th July, 2010 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek - On the weak* closedness of the sum of the images of enlargements of two maximal monotone operators, 8th EUROPT Workshop - Advances in Continuous Optimization, Aveiro, Portugal, 09th-10th July, 2010 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Classical linear vector optimization duality revisited, 8th EUROPT Workshop - Advances in Continuous Optimization, Aveiro, Portugal, 09th-10th July, 2010 (Lecturer: G. Wanka)

R. I. Boţ, N. Lorenz, G. Wanka - Optimality conditions for portfolio optimization problems, 24th Mini EURO Conference on Continuous Optimization and Information-Based Technologies in The Financial Sector - 24th MEC EurOPT 2010, Izmir, Turkey, 23th-26th June, 2010 (Lecturer: N. Lorenz)

R. I. Boţ, S.-M. Grad - Lower semicontinuous type regularity conditions for subdifferential calculus , 24th Mini EURO Conference on Continuous Optimization and Information-Based Technologies in The Financial Sector - 24th MEC EurOPT 2010, Izmir, Turkey, 23th-26th June, 2010 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek - On a zero duality gap result in extended monotropic programming, 4th Workshop on Optimization and Variational Analysis, Elche, Spain, 14th-16th June, 2010 (Poster: R. I. Boţ)

R. I. Boţ - On some quasi-relative interior-type qualification conditions in convex programming, High Seminar Optimization, Institute of Mathematics, Martin-Luther University Halle-Wittenberg, Germany, 27th April, 2010 (Lecturer: R. I. Boţ)

until 2009

R. I. Boţ - Konjugierte Dualität bei konvexen Optimierungsaufgaben und darüber hinaus, Research Seminar Partial Differential Equations and Inverse Problems, Faculty of Mathematics, Chemnitz University of Technology, 4th December, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ - On Fenchel duality and some of its variants, 09w5006 Interdisciplinary Workshop on Fixed-Point Algorithms for Inverse Problems in Science and Engineering, Banff International Research Station for Mathematical Innovation and Discovery, Banff, Canada, 1st-6th November, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ, E. R. Csetnek - An application of the bivariate inf-convolution formula to enlargements of monotone operators, OCANA Seminar Series, UBC Okanagan, Kelowna, Canada, 29th October, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ - Minimality via convex subdifferential calculus: the role of the regularity conditions, Chemnitz-RICAM-Symposium on Inverse Problems, Linz, Austria, 14th-15th July, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - A general approach for studying duality in multiobjective optimization, 23rd European Conference on Operational Research - EUROXXIII, Bonn, Germany, 5th-8th July, 2009 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek, A. Löhne - On two variants of Fenchel duality: stable and totally unstable duality, 23rd European Conference on Operational Research - EUROXXIII, Bonn, Germany, 5th-8th July, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad - Regularity conditions for formulae of biconjugate functions, 7th EUROPT Workshop - Advances in Continuous Optimization, Remagen, Germany, 3rd-4th July, 2009 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek, A. Moldovan - Regularity conditions via quasi-relative interior for Fenchel and Lagrange duality in convex programming, 7th EUROPT Workshop - Advances in Continuous Optimization, Remagen, Germany, 3rd-4th July, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ - Recent achievements and challenges regarding conjugate duality in convex optimization, Faculty of Mathematics and Computer Science, "Babeş - Bolyai" University Cluj-Napoca, Cluj-Napoca, Romania, 25th June, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Generalized Moreau-Rockafellar results for composed convex functions, The Sixth International Conference on Nonlinear Analysis and Convex Analysis - NACA2009, Tokyo, Japan, 27th-31st March, 2009 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek, A. Löhne - On totally Fenchel unstable functions, The Sixth International Conference on Nonlinear Analysis and Convex Analysis - NACA2009, Tokyo, Japan, 27th-31st March, 2009 (Lecturer: R. I. Boţ)

R. I. Boţ, A. Heinrich, N. Lorenz - Conjugate duality in convex optimization: Theoretical aspects and some applications in machine learning, Dipartimento di Informatica e Scienze dell'Informazione, University of Genova, Genova, Italy, 23th September, 2008 (Lecturer: R. I. Boţ)

R. I. Boţ, E. R. Csetnek - The quasi-relative interior in convex programming: regularity conditions and duality theorems, Fifth World Congress of Nonlinear Analysts - WCNA 2008, Orlando, USA, 2nd-9th July, 2008 (Lecturer: R. I. Boţ)

G. Wanka - Conjugate duality in vector optimization, Fifth World Congress of Nonlinear Analysts - WCNA 2008, Orlando, USA, 2nd-9th July, 2008 (Lecturer: G. Wanka)

G. Wanka - Duality for multiobjective location problems, 11th International Symposium on Locational Decisions - ISOLDE XI, Santa Barbara, USA, 26th June - 1st July, 2008 (Lecturer: G. Wanka)

R. I. Boţ, E. R. Csetnek - An application of the bivariate inf-convolution to enlargements of monotone operators, International School of Mathematics "Guido Stampacchia", 48th Workshop: Nonsmooth Analysis Optimization and Applications, Erice, Italy, 9th-17th May, 2008 (Lecturer: E. R. Csetnek)

R. I. Boţ, E. R. Csetnek, A. Löhne - On two open problems regarding totally Fenchel unstable functions, International School of Mathematics "Guido Stampacchia", 48th Workshop: Nonsmooth Analysis Optimization and Applications, Erice, Italy, 9th-17th May, 2008 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Generalized Moreau-Rockafellar results for composed convex functions, International School of Mathematics "Guido Stampacchia", 48th Workshop: Nonsmooth Analysis Optimization and Applications, Erice, Italy, 9th-17th May, 2008 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek, A. Löhne, S. Simons - On two open problems regarding totally Fenchel unstable functions, Dipartimento di Matematica Applicata "U.Dini", University of Pisa, Pisa, Italy, 24th January, 2008 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Closedness type and subdifferential regularity conditions for conjugate duality in infinite dimensional spaces, Dipartimento di Matematica Applicata "U.Dini", University of Pisa, Pisa, Italy, 24th January, 2008 (Lecturer: G. Wanka)

R. I. Boţ, N. Lorenz, G. Wanka - Chance-constrained optimization problems and applications, Workshop "Stochastische Analysis" 2007, Eibenstock, Germany, 4th- 6th October, 2007 (Lecturer: N. Lorenz)

R. I. Boţ, S.-M. Grad, G. Wanka - Regularity conditions for Fenchel-Lagrange duality in infinite dimensional spaces, International Conference on Continuous Optimization - Modelling and Optimization: Theory and Applications 2007 - ICCOPT 07-MOPTA 07, McMaster University, Hamilton, Ontario, Canada, 13th-16th August, 2007 (Lecturer: G. Wanka)

R. I. Boţ, E. R. Csetnek, G. Wanka - A new condition for maximal monotonicity via representative functions, International Conference on Continuous Optimization - Modelling and Optimization: Theory and Applications 2007 - ICCOPT 07-MOPTA 07, McMaster University, Hamilton, Ontario, Canada, 13th-16th August, 2007 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - New regularity conditions for Lagrange and Fenchel-Lagrange duality in infinite dimensional spaces, The Second International Conference on Optimization and Optimal Control - COOC 2007, Ulaanbaatar, Mongolia, 17th-20th July, 2007 (Lecturer: G. Wanka)

R. I. Boţ - Closedness type regularity conditions in convex optimization, 6th Congress of Romanian Mathematicians, Bucharest, Romania, 28th June-4th July, 2007 (Lecturer: R. I. Boţ)

R. I. Boţ, E. R. Csetnek, G. Wanka - Regularity conditions via quasi-relative interior in convex programming, NACA 2007: The Fifth International Conference on Nonlinear Analysis and Convex Analysis, National Tsing-Hua University, Hsinchu, Taiwan, 31st May-4th June, 2007 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Fenchel-Lagrange duality in infinite dimensional spaces, NACA 2007: The Fifth International Conference on Nonlinear Analysis and Convex Analysis, National Tsing-Hua University, Hsinchu, Taiwan, 31st May-4th June, 2007 (Lecturer: G. Wanka)

R. I. Boţ, S.-M. Grad, G. Wanka - On strong and total Lagrange duality for convex optimization problems, NACA 2007: The Fifth International Conference on Nonlinear Analysis and Convex Analysis, National Tsing-Hua University, Hsinchu, Taiwan, 31st May-4th June, 2007 (Lecturer: S.-M. Grad)

R. I. Boţ, S.-M. Grad, G. Wanka - A new framework for studying duality in multiobjective optimization, CODE 2007: Conference de la SMAI sur l'Optimisation et la Decision, Institut "Henri Poincare", Paris, France, 18th-20th April, 2007 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek, G. Wanka - Sequential optimality conditions in convex programming via perturbation approach, CODE 2007: Conference de la SMAI sur l'Optimisation et la Decision, Institut "Henri Poincare", Paris, France, 18th-20th April, 2007 (Lecturer: R. I. Boţ)

R. I. Boţ, G. Wanka, I. B. Hodrea - Farkas-Type Results with Conjugate Functions, Seminario Mario Volpato, Department of Applied Mathematics, University Ca' Foscari Venezia, Venice, Italy, 28th September, 2006 (Lecturer: G. Wanka)

R. I. Boţ, G. Wanka, S.-M. Grad - A New Regularity Condition for Subdifferential Calculus and Fenchel Duality in Infinite Dimensional Spaces. Applications for Maximal Monotone Operators, Seminario Mario Volpato, Department of Applied Mathematics, University Ca' Foscari Venezia, Venice, Italy, 28th September, 2006 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - A New Framework for Studying Duality in Multiobjective Optimization, GREQAM Summer School Rationality, Social Learning and Complexity, Aix-en Provence, France, 25th-29th September, 2006 (Lecturer: S.-M. Grad)

R. I. Boţ, E. R. Csetnek, G. Wanka - A New Condition for Maximal Monotonicity via Representative Functions, GREQAM Summer School Rationality, Social Learning and Complexity, Aix-en Provence, France, 25th-29th September, 2006 (Lecturer: E. R. Csetnek)

R. I. Boţ, G. Wanka, S.-M. Grad - A New Regularity Condition for Subdifferential Calculus and Fenchel Duality in Infinite Dimensional Spaces, Department of Mathematics, University of Pisa, Pisa, Italy, 22nd September, 2006 (Lecturer: R. I. Boţ)

G. Wanka, R. I. Boţ, S.-M. Grad - Almost and Nearly Convex Functions: Conjugacy and Duality, Department of Mathematics, University of Pisa, Pisa, Italy, 22nd September, 2006 (Lecturer: G. Wanka)

R. I. Boţ, S.-M. Grad, G. Wanka - Conjugacy and Fenchel Duality for Almost Convex and Nearly Convex Functions, International Conference on Applied Analysis and Differential Equations, Iaşi, Romania, 4th-9th September, 2006 (Lecturer: S.-M. Grad)

R. I. Boţ, I. B. Hodrea, G. Wanka - Farkas-Type Results for Fractional Programming Problems, International Conference on Applied Analysis and Differential Equations, Iaşi, Romania, 4th-9th September, 2006 (Poster: I. B. Hodrea)

R. I. Boţ, E. R. Csetnek, G. Wanka - Some New Regularity Conditions for Fenchel Duality in Real Linear Spaces, International Conference on Applied Analysis and Differential Equations, Iaşi, Romania, 4th-9th September, 2006 (Poster: E. R. Csetnek)

R. I. Boţ, S.-M. Grad, G. Wanka - Brezis-Haraux-Type Approximation of the Range of a Monotone Operator Composed with a Linear Mapping, International Conference on Applied Analysis and Differential Equations, Iaşi, Romania, 4th-9th September, 2006 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Brezis-Haraux-type approximation of the range of a monotone operator composed with a linear mapping, INTAS Summer School - Nonlinear analysis with applications in Economics, Energy and Transportation, Bergamo, Italy, 5th-9th June, 2006 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Maximal monotonicity for the precomposition with a linear operator, International Conference on Mathematics of Optimization and Decision Making, University Antilles-Guyane, Guadeloupe, France, 18th-21st April, 2006 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - New regularity conditions for Lagrange and Fenchel-Lagrange duality in infinite dimensional spaces, International Conference on Mathematics of Optimization and Decision Making, University Antilles-Guyane, Guadeloupe, France, 18th-21st April, 2006 (Lecturer: S.-M. Grad)

R. I. Boţ, S.-M. Grad, G. Wanka - Almost and nearly convex functions: conjugacy and duality, 8th International Conference on Approximation and Optimization in The Caribbean, Santo Domingo, Dominican Republic, 3rd-7th April, 2006 (Lecturer: G. Wanka)

R. I. Boţ, G. Wanka - Farkas-type results for max-functions, 7th International Conference on Operations Research, Havana, Cuba, 27th-31st March, 2006 (Lecturer: G. Wanka)

R. I. Boţ, S.-M. Grad, G. Wanka - Weaker constraint qualifications in maximal monotonicity, Workshop of the PhD Students in Optimization from Saxony, Freiberg, Germany, 30th November, 2005 (Lecturer: S.-M. Grad)

R. I. Boţ, I. B. Hodrea, G. Wanka - Farkas-type results for composed convex functions, Workshop of the PhD Students in Optimization from Saxony, Freiberg, Germany, 30th November, 2005 (Lecturer: I. B. Hodrea)

R. I. Boţ, A. Lkhamsuren, G. Wanka - On gap functions for equilibrium problems, Workshop of the PhD Students in Optimization from Saxony, Freiberg, Germany, 30th November, 2005 (Lecturer: A. Lkhamsuren)

R. I. Boţ, G. Wanka - Farkas-type Results with Conjugate Functions, International Conference in Memoriam Gyula Farkas, Cluj-Napoca, Romania, 23rd-26th August, 2005 (Lecturer: G. Wanka)

R. I. Boţ, S.-M. Grad, G. Wanka - Conjugate Duality for Composed Convex Optimization Problems with a New Constraint Qualification, International Conference in Memoriam Gyula Farkas, Cluj-Napoca, Romania, 23rd-26th August, 2005 (Lecturer: S.-M. Grad)

R. I. Boţ, G. Wanka - A Weak Regularity Condition for Subdifferential Calculus and Fenchel Duality in Infinite Dimensional Spaces, International Conference in Memoriam Gyula Farkas, Cluj-Napoca, Romania, 23rd-26th August, 2005 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - A New Constraint Qualification for the Formula of the Conjugate of Composed Functions in Infinite Dimensional Spaces, 8th International Symposium on Generalized Convexity and Generalized Monotonicity, Varese, Italy, 4th-8th July, 2005 (Lecturer: R. I. Boţ)

R. I. Boţ, G. Kassay, G. Wanka - Strong Duality for Generalized Convex Optimization Problems, 8th International Symposium on Generalized Convexity and Generalized Monotonicity, Varese, Italy, 4th-8th July, 2005 (Lecturer: G. Wanka)

R. I. Boţ, G. Wanka - On a New Closed Cone Constraint Qualification, Research Seminar of the Chair of analysis and optimization, Faculty of mathematics and informatics of "Babeş - Bolyai" University Cluj-Napoca, Cluj-Napoca, Romania, 4th November, 2004 (Lecturer: R. I. Boţ)

R. I. Boţ, S.-M. Grad, G. Wanka - Fenchel-Lagrange versus Geometric Duality in Convex Optimization, Research Seminar of the Chair of analysis and optimization, Faculty of mathematics and informatics of "Babeş - Bolyai" University Cluj-Napoca, Cluj-Napoca, Romania, 4th November, 2004 (Lecturer: S.-M. Grad)

R. I. Boţ, S.-M. Grad, G. Wanka - Farkas-Type Results with Conjugate Functions, 12th French-German-Spanish Conference on Optimization, Avignon, France, 20th-24th September, 2004 (Poster: S.-M. Grad)

R. I. Boţ, S.-M. Grad, G. Wanka - Fenchel-Lagrange versus Geometric Duality in Convex Optimization, 12th French-German-Spanish Conference on Optimization, Avignon, France, 20th-24th September, 2004 (Lecturer: R. I. Boţ)

G. Wanka, R. I. Boţ, S.-M. Grad - Multiobjective Semidefinite Programming Duality, International Congress of Mathematicians, Peking, China, 20th-28th August, 2002 (Lecturer: G. Wanka)

G. Wanka, R. I. Boţ - An Analysis of Dual Problems in Multiobjective Optimization , International Conference on Optimization and Optimal Control, Ulan-Bator, Mongolia, 13th-17th August, 2002 (Lecturer: G. Wanka)

R. I. Boţ, G. Wanka - An Analysis of Dual Problems in Multiobjective Optimization (II), IV Brasilian Workshop on Continuous Optimization, Rio de Janeiro, Brazil, 15th-20th July, 2002 (Lecturer: R. I. Boţ)

R. I. Boţ, G. Wanka - An Analysis of Dual Problems in Multiobjective Optimization (I), IV Brasilian Workshop on Continuous Optimization, Rio de Janeiro, Brazil, 15th-20th July, 2002 (Lecturer: G. Wanka)

G. Wanka, R. I. Boţ, S.-M. Grad - Duality for Multiobjective Convex Semidefinite Programming Problems, Colleg Seminar in the post graduate programme GKAAM, Munich, Germany, 13th May, 2002 (Lecturer: R. I. Boţ)

G. Wanka, R. I. Boţ - Duality for the Location Model Involving Sets as Existing Facilities, 12th Workshop of the GOR-Working Group "decision theory and praxis", Hohenheim, Germany, 21st-23rd March, 2002 (Lecturer: R. I. Boţ)

G. Wanka, R. I. Boţ, S.-M. Grad - Duality for Multiobjective Convex Semidefinite Programming Problems, 12th Workshop of the GOR-Working Group "decision theory and praxis", Hohenheim, Germany, 21st-23rd March, 2002 (Lecturer: G. Wanka)

R. I. Boţ - An Application of the Theory of Duality for Support Vector Machines, Foundationer's meeting of "Gottlieb Daimler- und Karl Benz-Stiftung", Willebadessen, Germany, 14th-16th September, 2001 (Lecturer: R. I. Boţ)

G. Wanka, R. I. Boţ - On the Relations between Different Dual Problems in Convex Optimization, Operations Research 2001, Duisburg, Germany, 3rd-5th September, 2001 (Lecturer: G. Wanka)

R. I. Boţ, G. Wanka - A New Duality Approach for Convex Optimization Problems, Optimization 2001, Aveiro, Portugal, 23rd-25th July, 2001 (Lecturer: R. I. Boţ)

R. I. Boţ, G. Wanka - A New Duality Approach for Multiobjective Convex Optimization Problems, Workshop of PhD students in optimization from Saxony, Freiberg, Germany, 17th July, 2001 (Lecturer: R. I. Boţ)

G. Wanka, R. I. Boţ - Different Dual Problems in Convex Optimization, 11th Workshop of the GOR-Working Group "Decision Theory and Applications", Kloster Banz, Germany, 7th-10th March, 2001 (Lecturer: G. Wanka)

G. Wanka, R. I. Boţ - Multiobjective Duality for Convex Ratios, 10th Workshop of the GOR-Working Group "decision Theory and Applications", Seeheim, Germany, 16th-18th March, 2000 (Lecturer: R. I. Boţ)

G. Wanka, R. I. Boţ - Multiobjective Duality for Convex-Linear Problems, Operations Research 1999, Magdeburg, Germany, 1st-3rd September, 1999 (Lecturer: G. Wanka)

G. Wanka, R. I. Boţ - Duality for Convex Optimization, 9th Workshop of the GOR-Working Group "decision Theory and Applications", Chemnitz, Germany, 3rd-5th March, 1999 (Lecturer: G. Wanka)

Conference talks co-authored by members of our research group

E.L. Pop, S.-M. Grad - Weak minimality by means of the quasi-interior of the ordering cone, The Fourteenth International Conference on Applied Mathematics and Computer Science, Cluj-Napoca, Romania, 29-31.08.2013 (Lecturer: E.L. Pop, "Babeş-Bolyai" University Cluj-Napoca)

E.L. Pop, S.-M. Grad - Alternative generalized Wolfe type and Mond-Weir type vector duality, The 25th European Conference on Operational Research - EURO-2012, Vilnius, Lithuania, 08-11.07.2012 (Lecturer: E.L. Pop, "Babeş-Bolyai" University Cluj-Napoca)

L. Cioban, E.R. Csetnek - Revisiting the construction of gap functions for variational inequalities via conjugate duality, The 25th European Conference on Operational Research - EURO-2012, Vilnius, Lithuania, 08-11.07.2012 (Lecturer: L. Cioban, "Babeş-Bolyai" University Cluj-Napoca)

E.L. Pop, S.-M. Grad - Comparing the optimality conditions obtained for a constrained vector optimization problem via different scalarizations, The 10th EUROPT Workshop on Advances in Continuous Optimization, Siauliai, Lithuania, 05-07.07.2012 (Lecturer: E.L. Pop, "Babeş-Bolyai" University Cluj-Napoca)

L. Cioban, E.R. Csetnek - Revisiting the Construction of Gap Functions for Equilibrium Problems via Conjugate Duality, The 10th EUROPT Workshop on Advances in Continuous Optimization, Siauliai, Lithuania, 05-07.07.2012 (Lecturer: L. Cioban, "Babeş-Bolyai" University Cluj-Napoca)

L. Cioban, E.R. Csetnek - Sequential optimality conditions for variational inequalities, 10th International Seminar on Approximation Theory and its Applications, Sibiu, Romania, 24.-27. Mai, 2012 (Lecturer: L. Cioban, "Babeş-Bolyai" University Cluj-Napoca)

E.L. Pop, S.-M. Grad - New Wolfe and Mond-Weir type vector duality, 10th International Seminar on Approximation Theory and its Applications, Sibiu, Romania, 24.-27. Mai, 2012 (Lecturer: E.L. Pop, "Babeş-Bolyai" University Cluj-Napoca)

H.V. Boncea, S.-M. Grad - Characterizations for ε-duality gap statements for constrained convex optimization problems, 10th International Seminar on Approximation Theory and its Applications, Sibiu, Romania, 24.-27. Mai, 2012 (Lecturer: H.V. Boncea, "Babeş-Bolyai" University Cluj-Napoca)

L. Cioban, E.R. Csetnek - Duality for ε-variational inequalities via the subdifferential calculus, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: L. Cioban, "Babeş-Bolyai" University Cluj-Napoca)

D.M. Nechita, R.I. Boţ - Looking for exact calculus rules for the Dini-Hadamard subdifferential, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: D. M. Nechita, "Babeş-Bolyai" University Cluj-Napoca)

A.R. Baias, R.I. Boţ - Subdifferential formulae for convex risk functions, 10th International Symposium on Generalized Convexity and Monotonicity - GCM10, Cluj-Napoca, Romania, 22nd-27th August, 2011 (Lecturer: A. R. Baias, "Babeş-Bolyai" University Cluj-Napoca)

R. I. Boţ, D. M. Nechita - The Dini-Hadamard subdifferential: optimality conditions for d.c. programming, 7th International Conference on Applied Mathematics - ICAM7, Baia Mare, Romania, 1st-4th September, 2010 (Lecturer: D. M. Nechita, "Babeş-Bolyai" University Cluj-Napoca)

R. I. Boţ, A. R. Baias - Dual representations of monotone and cash-invariant hulls for convex risk measures, 7th International Conference on Applied Mathematics - ICAM7, Baia Mare, Romania, 1st-4th September, 2010 (Lecturer: A. R. Baias, "Babeş-Bolyai" University Cluj-Napoca)

R. I. Boţ, A. R. Baias - Subdifferential formulae for convex risk measures, The Thirteenth International Conference of Applied Mathematics and Computer Science, Cluj-Napoca, Romania, 26th-28th August, 2010 (Lecturer: A. R. Baias, "Babeş-Bolyai" University Cluj-Napoca)

R. I. Boţ, D. M. Nechita - On an extension of the Dini-Hadamard subdifferential of the difference of two functions and local minimization, The Thirteenth International Conference of Applied Mathematics and Computer Science, Cluj-Napoca, Romania, 26th-28th August, 2010 (Lecturer: D. M. Nechita, "Babeş-Bolyai" University Cluj-Napoca)

R. I. Boţ, A. E. Capătă - Existence results and gap functions for the generalized equilibrium problem with composed functions, A XIII-a conferinţă anuală a Societăţii de Ştiinţe Matematice din România, Beiuş, Romania, 1st-3rd May, 2009 (Lecturer: A. E. Capătă, "Babeş-Bolyai" University Cluj-Napoca)

L. Altangerel, R. I. Boţ, G. Wanka - Variational principles for vector equilibrium problems via conjugate duality , The Second International Conference on Nonlinear Programming with Applications, Beijing, China, 7th-9th April, 2008 (Lecturer: L. Altangerel, National University of Mongolia)

L. Altangerel, R. I. Boţ, G. Wanka - Conjugate duality for vector optimization with applications to the vector variational inequality, The Second International Conference on Optimization and Optimal Control - COOC 2007, Ulaanbaatar, Mongolia, 17th-20th July, 2007 (Lecturer: L. Altangerel, National University of Mongolia)

R. I. Boţ, R. Chares, G. Wanka - Duality for multiobjective fractional optimization problems, 20th ORBEL Conference on Quantitative Methods for Decision Making, Gent, Belgium, 19th-20th January, 2006 (Lecturer: R. Chares, Universite Catholique de Louvain)