talks

10/2023: Mini course at: Atelier on Higher structures in Differential Geometry, Lyon
09/2023: Workshop on Poisson Geometry, Higher Structures, and Deformation Theory, Würzburg
06/2023: Conference on DG-manifolds in Geometry and Physics, Institut Henri Poincaré, Paris
05/2023: The many interactions of symplectic and Poisson geometry, Conference in honour of Alan Weinstein’s 80th birthday, Institut Henri Poincaré, Paris
03/2023: Workshop on Differential homotopy theory, University of Aizu, Japan
02/2023: Texas Tech University, Topology and Geometry seminar

09/2022: DMV Annual Meeting, Minisymposium: Higher Differential Geometry, Berlin
08/2022: Erwin Schrödinger Institute, Thematic Program on Higher Structures and Field Theory, Vienna
07/2022: AMS-SMF-EMS Joint International Meeting, Special Session on Recent Advances in Diffeology and their Applications, Grenoble
06/2022: Global Poisson Seminar
06/2022: Workshop on Noncommutative geometry and Higher Structures, Scalea, Italy
02/2022: Differentiable Stacks, Poisson Geometry and related geometric structures, Les Diablerets, Switzerland

12/2021: Math-QFT seminar, MPIM Bonn
08/2021: Minicourse at: A finite and infinite-dimensional meeting on Lie groupoids, Poisson geometry and integrability, Wolfgang Pauli Institute, Vienna

09/2020: Workshop on multisymplectic geometry, KU Leuven
02/2020: Workshop on geometric structures, Lie groupoids and symmetries, Utrecht

12/2019: Journées Lensoises de Geometrie et Topologie, Lens
10/2019: University of Science and Technology of China, Hefei
10/2019: China Agricultural University, Beijing
01/2019: Quantum Gravity Seminar, Universiteit Nijmegen

05/2018: Colloquium of the Graduiertenkolleg, Regensburg

10/2017: Higher Structures along the Lower Rhine X, Universiteit Utrecht
07/2017: Higher Structures Lisbon 2017, Instituto Superior Técnico
08/2017: Workshop on Geometric structures and Lie algebroids, Universiteit Utrecht
06/2017: Field Theories and Higher Structures in Mathematics and Physics, Casa Matemática Oaxaca, Mexico

09/2016: Workshop on “The Pseudogroups of Élie Cartan: Past to Present”, Universiteit Utrecht
08/2016: Abendvortrag, Schloss Neubeuern, Studienstiftung des deutschen Volkes
06/2016: Colloquium of the Geometry and Quantum Theory (GQT) cluster, Zeist, Netherlands
05/2016: Factorization Algebras and Functorial Field Theories, Mathematisches Forschungsinstitut Oberwolfach (no talk given)

04/2015: University of Sheffield, Differential geometry seminar

09/2014: Yau Mathematical Sciences Center, Tsinghua University, China
09/2014: Institute of Mathematics, Peking University, China

11/2013: University of Luxemburg, Working group on Algebra, Geometry, and Quantization
06/2013: Young Researchers in Mathematics 2013, Edinburgh, keynote speaker

11/2012: Universität Hamburg, Kolloquium des Zentrums für Mathematische Physik
09/2012: Beihang University, Beijing
09/2012: Peking University, Beijing
07/2012: Higher Structures in Topology and Geometry VI, Universität Göttingen
02/2012: Washington University, St. Louis, Geometry and Topology Seminar

11/2011: University of Edinburgh, Mathematical Physics and Topology Seminar
11/2011: University of Newcastle, Algebra and Geometry Seminar
11/2011: University of Glasgow, Algebra Seminar
05/2011: MPIM Bonn, Derived Differential Geometry Seminar
03/2011: Korea Institut for Advanced Study (KIAS), Seoul, Geometry Seminar
03/2011: Göttingen, Courant Research Center Seminar

12/2010: Workshop on Geometry and Topology, Universiteit Utrecht
12/2010: MPIM Bonn, Witten Genus Seminar
11/2010: Universität Bonn, Oberseminar Globale Analysis
10/2010: ESI, Higher Structures in Mathematics and Physics 2010
09/2010: Universität Augsburg, Seminar on the Classification of TQFTs
05/2010: Max-Planck-Institut für Mathematik, Bonn
01/2010: Universität Augsburg, Oberseminar Algebra und Zahlentheorie

12/2009: TU München, Seminar on corbordism categories
07/2009: Universität Freiburg, Oberseminar Differentialgeometrie
02/2009: Universität Augsburg, Seminar über Vertexoperator-Algebren
04/2009: Workshop on Kontsevich formality, Banach Center Warschau
03/2009: Öffentliche Tagung: Fiktum versus Faktum? Die Mathematik in Literatur und Film des 20. und 21. Jahrhunderts, Universität Freiburg

12/2008: Workshop on Supersymmetry and Noncommutative Quantum Field Theory, Erwin Schrödinger Institut Wien
12/2008: Universiteit Nijmegen, Seminar on Quantization, noncommutative geometry, and symmetry
11/2008: Courant Center Göttingen, Workshop on Higher Structures in Differential Geometry
09/2008: Conference on Categories and Applications (SeCa V), Pontevedra, Spain
09/2008: UC Berkeley, Differential Geometry Seminar
04/2008: Universität Augsburg/Regensburg, Seminar on Geometric invariant theory
04/2008: Universität Regensburg, Oberseminar Globale Analysis
02/2008: Workshop on Duflo isomorphism and its relatives, Universität Mainz
01/2008: Universität Augsburg/Regensburg, Seminar on Generalized complex geometry

12/2007: Universität Regensburg, Seminar on Loop spaces and Hochschild cohomology
07/2007: Joint Meeting of the AMS and Polish Mathematical Society, Warsaw, Session on Noncommutative Geometry and Quantum Groups
06/2007: Universität Göttingen, Topologie Seminar
06/2007: Utrecht University
05/2007: Universität Regensburg
05/2007: Jacobs University Bremen
05/2007: Workshop on Noncommutativity and Physics, Bayrischzell
04/2007: Workshop on Lie Groups, Lie Algebras and their Representations, UC Santa Barbara
02/2007: Journée Déformation et Quantification, Institut Henri Poincaré
01/2007: Institut Henri Poincaré, trimester on groupoids and stacks in physics and geometry

11/2006: UC Berkeley, Topology Seminar
11/2006: Stanford University, Northern California Symplectic Geometry Seminar
05/2006: Universität Zürich / ETH Zürich, Mathematical Physics Seminar
04/2006: UC Berkeley, Generalized Geometry Seminar
04/2006: UC Davis, Discrete Math. & Representation Theory Seminar

12/2005: Universität Freiburg, Fundamental Interactions Seminar
10/2005: UC Berkeley, Symplectic Geometry Seminar
05/2005: Workshop on Noncommutativity and Physics, Bayrischzell
01/2005: Göttingen, Philologischer Salon

07/2004: Conference on Non-commutative Geometry and Representation Theory in Mathematical Physics, Karlstad University, Sweden