Talks by Stefaan Vaes

Invited conference talks, lecture series and colloquia by Stefaan Vaes

2022

  • 22 Sep Joint Mathematics Colloquium, ICMAT-UAM-UC3M-UCM, Madrid, Spain.

  • 12 - 16 Sep Noncommutative harmonic analysis and quantum groups, Polish Academy of Sciences, Bedlewo, Poland.

  • 29 Aug-2 Sep Von Neumann algebras, Hausdorff Research Institute for Mathematics, Bonn, Germany.

  • 1 - 4 Jul Operator algebras, dynamics and groups, ICM satellite conference, Copenhagen, Denmark.

  • 30 May-3 Jun Plenary lecture at the 50th Canadian Operator Algebra Symposium (COSy), Ottawa, Canada.

  • 24 - 28 May Lecture series at the workshop Topological quantum groups, C*-tensor categories, and subfactors, University of Waterloo, Canada.

  • 16 - 20 May Operator Algebras and Group Dynamics, Centre International des Rencontres Mathématiques (CIRM), Marseille, France.

  • 31 Mar Mathematics Colloquium, University of Nevada at Reno, United States. (online)

  • 11 Feb Distinguished Lecture of the Pacific Institute of Mathematical Sciences, University of Regina, Canada. (online)

2021

  • 18 - 21 Oct Automorphisms and Invariants of Operator Algebras, Copenhagen University, Denmark.

  • 13 - 17 Sep Quantum Groups: Algebra, Analysis and Category Theory, Oberwolfach, Germany.

  • 23 - 27 Aug Noncommutative harmonic analysis and quantum groups, Będlewo, Poland. (postponed due to COVID-19 pandemic)

  • 9 - 13 Aug Plenary lecture at the International Workshop on Operator Theory and its Applications (IWOTA), Orange, United States. (online)

  • 20 - 21 Mar Brazos Analysis Seminar, Texas, United States. (online)

  • 25 - 29 Jan Mini-course at the workshop Actions of Tensor Categories on C*-algebras, IPAM, UCLA, Los Angeles, United States. (online)

2020

  • 13 - 18 Dec IPAM's Quantitative Linear Algebra Reunion Conference II, IPAM, Lake Arrowhead, San Bernardino County, United States. (postponed due to COVID-19 pandemic)

  • 11 Dec Meeting of the Edinburgh Mathematical Society, Glasgow, United Kingdom. (online)

  • 10 - 13 Dec Operator algebras, quantum information and beyond, UCLA, Los Angeles, United States. (postponed due to COVID-19 pandemic)

  • 12 - 15 Oct Automorphisms and Invariants of Operator Algebras, Copenhagen University, Denmark. (postponed due to COVID-19 pandemic)

  • 18 - 20 Aug Noncommutative Conference, Ghent Analysis and PDE Center, Gent, Belgium. (online)

  • 27 - 31 Jul Mini-course at the concentration week Topological quantum groups, C*-tensor categories, and subfactors, Texas A&M University, College Station, United States. (postponed due to COVID-19 pandemic)

  • 15 - 19 Jun Fifty years of Tomita-Takesaki theory, Tokyo University, Tokyo, Japan. (postponed due to COVID-19 pandemic)

  • 21 Apr Polish Analysis Seminar, Institute of Mathematics of the Polish Academy of Science, Warsaw, Poland. (postponed due to COVID-19 pandemic)

  • 30 Mar-3 Apr Deligne categories and quantum groups, RWTH Aachen University, Germany. (postponed due to COVID-19 pandemic)

  • 21 - 22 Mar Workshop on II_1 factors, UCLA, Los Angeles, United States. (postponed due to COVID-19 pandemic)

2019

  • 29 - 30 Nov Memorial conference Richard V. Kadison, Carlsberg Academy, Copenhagen, Denmark.

  • Oct 31 Bourgain Day, Vrije Universiteit Brussel, Belgium.

  • Sep 29-Oct 4 Classification problems in von Neumann algebras, Banff International Research Station, Banff, Canada.

  • Sep 1 - 14 Chern lectures, Yau Mathematical Sciences Center, Tsinghua University, Beijing, China.

  • Jun 20 - 22 Opening Colloquium Excellence cluster Mathematics, WWU Münster University, Münster, Germany.

  • May 21 - 24 Conference Groupoids and Operator Algebras in honor of Jean Renault, Orléans University, Orléans, France.

  • May 9 Lecture at the Leçons de Mathématiques et d'Informatique d'aujourd'hui, Bordeaux, France.

  • Apr 29-May 3 Masterclass Subfactors and quantum groups, Department of Mathematics, University of Copenhagen, Denmark.

  • Apr 8-12 Conference in honor of Étienne Blanchard, Institut de Mathématiques de Jussieu, Université Paris Diderot, Paris, France.

  • Mar 11-15 Lecture series at Operator Algebras, Groups and Applications to Quantum Information, ICMAT, Madrid, Spain.

2018

  • Dec 17-18 Symposium in honor of Alain Valette's 60th birthday, Neuchâtel, Switzerland.

  • Nov 26-30 Workshop Model theory and operator algebras, Banff International Research Station, Banff, Canada.

  • Jun 4-8 Plenary lecture SMF 2018: congrès de la Société Mathématique de France, Lille, France.

  • Jun 4-8 Workshop L^2-invariants, ICMAT, Madrid, Spain.

  • Apr 30-May 5 Workshop Approximation properties in operator algebras and ergodic theory, Institute of Pure and Applied Mathematics, UCLA, Los Angeles, United States.

  • Apr 19 Institute of Mathematics Colloquium, EPFL, Lausanne, Switzerland.

  • Mar 15 Colloquium, Institute of Mathematics of Jussieu, Paris, France.

  • Mar 5-6 Tensor categories and analysis, Laboratoire de Mathématiques Nicolas Oresme, Caen, France.

2017

  • Nov 30-Dec 1 Plenary lecture at Arbre de Noël, Orsay University, Orsay, France.

  • Oct 13-14 Meeting in honor of Saad Baaj, University Clermont-Auvergne, Clermont-Ferrand, France.

  • Oct 2 Colloquium School of Mathematical Sciences, Queen Mary University, London, United Kingdom.

  • Sep 27-29 Plenary lecture at Joint meeting of the Edinburgh Mathematical Society and Societat Catalana de Matemàtiques, Edinburgh University, Edinburgh, United Kingdom.

  • Sep 18-22 Two lectures at the workshop MASAs and Automorphisms of C*-Algebras, Oberwolfach, Germany.

  • Aug 23-25 Opening lecture of the 43th Conference of the Belgian Society of French speaking Mathematics Teachers, Liège, Belgium.

  • June 12 Rotschild Lecture, Isaac Newton Institute, Cambridge, United Kingdom.

  • May 8-12 Approximation, deformation, quasification, Isaac Newton Institute, Cambridge, United Kingdom.

  • Mar 29 - Apr 2 Noncommutative geometry: state of the art and future prospects, Fudan Institute for Advanced Study, Fudan University, Shanghai, China.

  • Mar 31 Spring Operator Algebras Program, Research Center for Operator Algebras, East China National University, Shanghai, China.

  • Jan 23-27 Structure of Operator Algebras: Subfactors and Fusion Categories, Isaac Newton Institute, Cambridge, United Kingdom.

  • Jan 16-20 Lecture series at Primer on Subfactors and Applications, Isaac Newton Institute, Cambridge, United Kingdom.

2016

  • Dec 13-17 Lecture series at Recent Advances in Operator Theory and Operator Algebras, Indian Statistical Institute, Bangalore, India.

  • Dec 9 ULB Mathematics Colloquium, ULB, Brussels, Belgium.

  • Oct 4-7 Riemann Conference, Münster University, Münster, Germany.

  • Aug 8-12 Conference Operator Algebras and Mathematical Physics, Tohoku University, Sendai, Japan.

  • Jul 18-22 7th European Congress of Mathematics, invited lecture, TU Berlin, Berlin, Germany.

  • Jun 24-26 Symposium The mathematical legacy of Uffe Haagerup, University of Copenhagen, Denmark.

  • May 17-25 Lecture series at the NCGOA Spring Institute 2016, Hausdorff Institute for Mathematics, Bonn, Germany.

  • May 13 Young Mathematicians Colloquium, Lille, France.

  • Apr 18-22 Workshop Von Neumann Algebras, Mittag-Leffler Institute, Stockholm, Sweden.

  • Mar 22-23 Plenary lecture at the BeNeLux Mathematical Congress, UvA, Amsterdam, The Netherlands.

  • Feb 22 Inaugural lecture Francqui Chair, VUB, Brussels, Belgium.

2015

  • Nov 2-6 Noncommutative Geometry, Centre International des Rencontres Mathématiques, Marseille, France. Video recording.

  • Aug 17-21 Lecture series at the YMC*A, Young Mathematicians in C*-Algebras, University of Copenhagen, Denmark.

  • Aug 7-11 Abel Symposium, Hurtigruten Bergen-Harstad, Norway.

  • Jun 22-23 Scottish Operator Algebra Seminar, Aberdeen, United Kingdom.

  • Jun 1-3 Focus programme C*-algebras, Münster, Germany.

  • May 1-17 NCGOA 13 Operator Algebras and Approximation Properties of Groups, Vanderbilt University, Nashville, USA.

  • Mar 24-28 Workshop Subfactors and Conformal Field Theory, Oberwolfach, Germany.

  • Mar 9-13 Workshop Kadison-Singer, Interlacing Polynomials, and Beyond, MSRI, Berkeley, USA.

2014

  • Nov 27-29 Meeting of the GDR Noncommutative Geometry, Besançon, France.

  • Oct 23 Colloquium Institute of Mathematics, UC Louvain, Louvain-la-Neuve, Belgium.

  • Sep 22-26 Workshop Von Neumann Algebras and Ergodic Theory, UCLA, Los Angeles, USA.

  • Aug 8-12 ICM Satellite Meeting Operator algebras and applications, plenary lecture, Cheong Pung, Jecheon, Korea.

  • Jun 30-Jul 5 OT25: 25th International Conference in Operator Theory, Timisoara, Romania.

  • Jun 2-6 Discrete groups and geometric structures, with applications, V, Leuven, Belgium.

  • Apr 1-3 Belgian Bracket and Quantization Workshop, Brussels, Belgium.

2013

  • Oct 31 General Mathematics Colloquium, Utrecht, The Netherlands.

  • Oct 28-31 Nord Pas de Calais/Belgium congress of mathematics, Valenciennes-Mons, France-Belgium.

  • Oct 24 Colloquium Mathematische Gesellschaft, Göttingen, Germany.

  • Aug 26-30 Conference C*-algebras, Oberwolfach, Germany.

  • Jul 8-12 Conference Mathematics and Quantum Physics, plenary lecture, Accademia dei Lincei, Rome, Italy.

  • Jun 24-28 Summer School Rigidity and Group Actions, lecture series, Institut de Mathématiques de Jussieu, Paris, France.

  • May 30-31 Conference Geometry and Analysis on groups , Neuchâtel, Switzerland.

  • May 20-24 Research program Operator Algebras and Harmonic Analysis, lecture series, ICMAT, Madrid, Spain.

  • Mar 7 Mathematics Colloquium, University of California at San Diego, UCSD, United States.

  • Jan 18 Colloquium Department of Mathematics, Saarland University, Saarbrücken, Germany.

2012

  • Dec 19-22 Winter School Banach Spaces and Operator Algebras, lecture series, Cheong Pung Resort, Jecheon, Korea.

  • Sep 24-28 Kick-off conference Centre Européen pour les Mathématiques, la Physique et leurs Interactions, plenary lecture, University of Lille, Lille, France.

  • Jun 18 - 22 Descriptive set theory and functional analysis, BIRS, Banff, Canada.

  • June 6-8 Joint Conference of the Belgian, Royal Spanish and Luxembourg Mathematical Societies, plenary lecture, University of Liège, Liège, Belgium.

  • May 30-Jun 3 GPOTS 2012, plenary lecture, University of Houston, Houston, United States.

  • Mar 21 - 22 Operator algebras, Quantum groups and Tensor categories, in honor of L. Vainerman, Caen, France.

  • Jan 9 - 13 Conference on von Neumann Algebras and Related Topics, RIMS, Kyoto University, Japan.

2011

  • Dec 7 - 16 Winter School on Operator Algebras, RIMS, Kyoto University, Japan. Lecture series.

  • Sep 21 - 23 Workshop for young researchers in mathematics 2011, Universidad Complutense de Madrid, Madrid, Spain.

  • Sep 19 - 23 Operator algebras and quantum groups, Stefan Banach Center for Mathematics, Warsaw, Poland.

  • May 31 Colloquium, University of Metz, France.

  • May 2 - 20 Von Neumann algebras and ergodic theory of group actions, IHP, Paris, France.

  • Apr 25 - 30 Annual Meeting EU-NCG, IMAR, Bucharest, Romania.

2010

  • Oct 9 - 10 AMS Western Section Meeting, UCLA, Los Angeles, United States.

  • Aug 19 - 27 International Congress of Mathematicians, invited lecture in the section Functional Analysis and Applications, Hyderabad, India.

  • May 10 - 19 Eighth annual spring institute on noncommutative geometry and operator algebras, Vanderbilt University, Nashville, United States.

  • Mar 7 - 13 Conference C*-Algebras, Oberwolfach, Germany.

  • Feb 1 - 5 Workshop on von Neumann algebras and group actions, University of Copenhagen, Denmark.

2009

  • Dec 8 - 11 Operators and Operator Algebras in honour of A. Gillespie and A. Sinclair, The University of Edinburgh, United Kingdom.

  • Dec 7 - 11 Operator algebras, groups and geometry, CIRM, Marseille, France.

  • Sep 28-Oct 2 Annual meeting of EU-network Noncommutative Geometry, University of Copenhagen, Denmark.

  • Sep 16 - 18 Lecture series at the School on Operator Algebras, Institute of Mathematics of the Romanian Academy, Bucharest, Romania.

  • Jul 14 - 24 Banach Algebras 2009, Stefan Banach International Mathematical Center, Będlewo, Poland.

  • May 14 - 16 Workshop Quantum Groups, Université Paul Sabatier, Toulouse, France.

  • Mar 15 - 18 Workshop Von Neumann algebras and ergodic theory, UCLA, Los Angeles, United States.

  • Mar 4 Mathematics Colloquium, Radboud University, Nijmegen, The Netherlands.

  • Feb 12 Colloquium de Mathématiques Pures et Appliquées, Université Catholique de Louvain, Louvain-la-Neuve, Belgium.

  • Feb 5 Mathematics Colloquium, University of Münster, Germany.

2008

  • Dec 4 - 6 Journées groupes et algèbres d'opérateurs, Université de Caen, France.

  • Oct 26-Nov 1 Von Neumann algebras and ergodic theory of group actions, Mathematisches Forschungsinstitut Oberwolfach, Germany.

  • Aug 17 - 23 C*-algebras, Mathematisches Forschungsinstitut Oberwolfach, Germany.

  • Jun 27 - 28 Operator Algebra Days, at the occasion of the retirement of Claire Anantharaman-Delaroche, Bourges, France.

  • Jun 13 Meeting of the Tripode, Lyon, France.

  • Mar 23 - 28 Topics in von Neumann algebras, Banff, Canada.

2007

  • Dec 11 - 15 Fields Institute Workshop Operator Spaces and Quantum Groups, Toronto, Canada.

  • Nov 23 - 25 Inaugural meeting of the GDRE Non Commutative Geometry, Rome, Italy.

  • Nov 2 - 3 North British Functional Analysis Seminar, Leeds, United Kingdom.

  • Oct 29-Nov 2 Fields Institute Workshop Von Neumann Algebras, Toronto, Canada.

  • Aug 13 - 24 Summer School Operator Algebras, Ottawa, Canada.

  • Jun 18 - 22 Meeting of the GDR Noncommutative Geometry, Fleurance, France.

  • Mar 29-Apr 6 Non Commutative Geometry, Conference in honor of Alain Connes, IHP, Paris, France.

  • Mar 17 - 19 Workshop Von Neumann algebras and ergodic theory, UCLA, Los Angeles, United-States.

  • Feb 26-Mar 2 Conference Groupoids in operator algebras and noncommutative geometry, IHP, Paris, France.

2006

  • Nov 15 - 18 MSJ-IHES Joint Workshop on Noncommutativity, IHES, Bures-sur-Yvette, France.

  • Nov 8 - 11 Workshop Recent advances in operator algebras, Rome, Italy.

  • Sep 21 - 28 Research group Noncommutative Geometry and Operator Algebras, Vanderbilt University, United States. Title: Deformation and rigidity results for crossed product II_1 factors.

  • Sep 16 - 21 Topics in von Neumann algebras, Banff, Canada.

  • Jun 6 - 9 Symposion of the Sonderforschungsbereich Geometrische Stukturen in der Mathematik, Münster, Germany.

  • May 27 - 30 Beyond Amenability: Groups, Actions and Operator Algebras, UCLA, Los Angeles, United States.

  • Mar 19 Bourbaki Seminar, Rigidity results for Bernoulli shifts and their von Neumann algebras (after Sorin Popa), Institut Henri Poincaré, Paris, France.

2005

  • Lecture series at the PhD School of the Center in Non-Commutative Geometry, Copenhagen, Denmark.

  • C*-Algebren, Oberwolfach, Germany.

  • Operator Algebras and Mathematical Physics, Bucharest, Romania.

  • Fields Institute Summer School Operator Algebras, Ottawa, Canada.

  • Joint meeting Benelux - France, Gent, Belgium.

  • Cours Peccot in the Collège de France, Paris.

2004

  • Colloquium, Institute of Mathematics, University of Neuchâtel, Switzerland.

  • Non-commutative geometry, Oberwolfach, Germany.

  • Fields Institute Workshop on Kazhdan's Property (T), Ottawa, Canada.

  • K-theory and non-commutative geometry, Institut Henri Poincaré, Paris, France.

  • Bourbaki Seminar, Free quasi-free states and factors of type III (after D. Shlyakhtenko), Institut Henri Poincaré, Paris, France.

  • Locally compact quantum groups and quantum symmetries, CIRM, Marseille, France.

  • Non-commutative geometry 2004 von Neumann algebras, CIRM, Marseille, France.

2003

  • C*-Algebren, Mathematisches Forschungsinstitut Oberwolfach, Germany.

  • International Conference "Groups", Paris, France.

2002

  • Frontier of Non Commutative Analysis and Mathematical Quantum Theory, Kyushu University, Fukuoka, Japan.

  • 9th Leuven Mathematical Physics Days, K.U.Leuven, Belgium.

  • Nichtkommutative Geometrie, Mathematisches Forschungsinstitut Oberwolfach, Germany.

  • 69th Rencontre entre Physiciens et Mathématiciens, Strasbourg, France.

2001

  • School/Conference on noncommutative geometry and quantum groups, Warsaw, Poland.

  • Colloquium Pure Mathematics, Department of Mathematics, Queen's University Belfast, United Kingdom.

  • Workshop on quantum groups and special functions, T.U.Delft, The Netherlands.

2000

  • XIIIth International Conference on Mathematical Physics, London, United Kingdom.

  • Workshop Mathematical and Physical Aspects of Quantum groups organized by the Max-Planck Institutes of Munich and Leipzig in Bayrischzell, Germany.

1999

  • Colloquium of the Institute Korteweg-de-Vries of Mathematics of the University of Amsterdam, the Netherlands.

  • Analysis and deformed algebras, University of Antwerp, Belgium.

Recent seminar talks

  • 13/05/2022 Operator Algebra Seminar, KU Leuven, Belgium.

  • 06/05/2022 Functional Analysis and Operator Algebras in Athens, Greece. (online)

  • 27/10/2021 Functional Analysis Seminar, UCLA, United States. (online)

  • 06/10/2021 Global Noncommutative Geometry Seminar. (online)

  • 02/06/2021 Functional Analysis Seminar, UCLA, United States. (online)

  • 02/02/2021 Mathematical Picture Language Seminar, Harvard University, Cambridge, MA, United States. (online)

  • 28/01/2021 Seminar Operator Algebras, Jussieu Mathematics Institute, Paris, France. (online)

Talks for a wider audience

  • 24/09/2021 Lecture at the celebration of 10 years Platform Wiskunde Nederland, Spectral gap: from the surface area of a sphere to operator algebras, Amsterdam, Netherlands.

  • 28/01/2020 Lecture at service club Fifty-One, Aarschot, Belgium.

  • 16/05/2017 Frontiers Lecture at The Learned Society of Wales, Cardiff, United Kingdom.

  • 26/04/2017 Lecture at the Science Days of Don Bosco secondary school, Haacht, Belgium.

  • 15/03/2017 Lecture at the prize ceremony of Wiskunde B-dag, Leuven, Belgium.

  • 15/03/2016 Student association WINA, Leuven, Belgium.

  • 17/02/2016 Science Night, KULAK, Kortrijk, Belgium.

  • 03/12/2015 Mathematics for everybody, Davidsfonds, Herentals, Belgium.

  • 26/11/2015 Wir müssen wissen, wir werden wissen, lecture at Metaforum, KU Leuven, Belgium.

  • 14/10/2015 Wir müssen wissen, wir werden wissen, lecture at the Royal Flemish Academy of Belgium for Science and the Arts, Brussels, Belgium.

  • 09/10/2015 Lecture Mathematics of the XXI century, Leuven, Belgium.

  • 23/09/2015 Public debate Science is wonder-ful, 10th anniversary of the European Researchers' Night, Brussels, Belgium.

  • 22/09/2015 Opening speech of the academic year 2015-2016, KULAK, Kortrijk, Belgium.

  • 13/03/2014 Mad Math Day, Sint-Victorinstituut, Turnhout, Belgium.

  • 11/2011 The Banach Tarski paradox, PRIME, UGent, Belgium.

  • 02/2011 Homer Simpson discovers mathematics, Department of Mathematics, K.U.Leuven, Belgium.

  • 02/2009 How easily you can win the next Nobel prize in mathematics, Department of Mathematics, K.U.Leuven, Belgium.

  • 10/2007 Conférence à la Sociéte Royale des Sciences de Liège Faire deux oranges à partir d'une : les mathématiques mènent-elles à des paradoxes?, Liège, Belgium.

  • 05/2004 Talk at the proclamation of the Flemish Mathematics Olympiad How Gödel astonished mathematics, University of Gent, Belgium.

  • 03/2004 Popularizing talk on A-periodic tilings of the plane and the golden ratio, Department of Mathematics, K.U.Leuven, Belgium.

  • 10/2002 Lecture at the Robert Stock Prize ceremony, K.U.Leuven, Belgium.