**Colloquium of the ZMP**

If you are interested in attending the colloquium please send an email to "birgit.mehrabadi [at] uni-hamburg [dot] de" for the zoom link.

- History of talks:

January 26, 2023, 4:15pm, online:**Domenico Fiorenza**(Universität Rom)*String bordism invariants in dimension 3 from U(1)-valued TQFTs*

January 12, 2023, 4:15pm, DESY, building 2a, Seminarraum 2:**Claude Duhr**(Universität Bonn)*The mathematics of precision physics*

December 15, 2022, 4:15pm, GEOMATIKUM, lecture theatre 3:**Lotte Hollands**(Edinburgh)*Non-perturbative partition functions for supersymmetric QFT's*

December 1, 2022, 4:15pm, DESY, building 2a, Seminarraum 2:**Boris Pioline**(Sorbonne Université and CNRS, Paris)*Modular bootstrap for BPS indices on Calabi-Yau threefolds*

November 17, 2022, 4:15pm, GEOMATIKUM, lecture theatre 3:**Vivek Shende**(CQM Syddansk)*Open curve counting in CY3*

November 3, 2022, 4:15pm, DESY, building 2a, Seminarraum 2:**Konrad Waldorf**(Universität Greifswald)*Geometric T-Duality: Buscher rules in general topology*

July 14, 2022, 12:16am, GEOMATIKUM, lecture theatre 6:**Kevin Walker**(Microsoft Station Q)*Low-dimensional G-bordism and G-modular TQFTs*

June 30, 2022, 4:15pm, online:**Justin Kaidi**(Stony Brook University)*Non-Invertible Symmetries in d>2*

June 16, 2022, 4:15pm, online:**Irene Valenzuela**(Harvard)*The Three Main Pillars of the Swampland*

June 2, 2022, 4:15pm, GEOMATIKUM, lecture theatre 6:**Gustav Holzegel**(WWU Münster)*The Stability of Black Hole Spacetimes*

May 12, 2022, 4:15pm, online:**Sam Raskin**(UT Austin)*Quantum duality and Morita theory for chiral algebras*

April 28, 2022, 4:15pm, online:**Pierre-Guy Plamondon**(Paris-Saclay)*tba*

January 27, 2022, 4:15pm, online:**Zhenghan Wang**(UC Santa Barbara)*A Riemann sum approach to quantum field theory*

January 13, 2022, 4:15pm, online:**Nathan Reading**(North Carolina State University)*Scatter, cluster, scatter, model*

December 16, 2021, 4:15pm, online:**Pavel Safronov**(Edinburgh)*Virtual fundamental classes and Batalin-Vilkovisky quantization from supersymmetric twists*

December 2, 2021, 5:15pm, online:**Natalie Paquette**(University of Washington)*Symmetries, universal defects, and holography.*

November 18, 2021, 4:15pm, online:**Michele del Zotto**(Uppsala University)*BPS states, global structures, and cluster categories*

November 4, 2021, 4:15pm, online:**Bernhard Keller**(Paris Jussieu)*Cluster algebras and representation theory*

October 21, 2021, 4:15pm, online:**Anastasia Volovich**(Brown University)*Mathematical Structures of Scattering Amplitudes*

July 1, 2021, 4:15pm, online:**Matthew Buican**(Queen Mary University of London)*aXb=c in 2+1D TQFT*

June 10, 2021, 4:15pm, online:**Mina Aganagic**(University of California, Berkeley)*Khovanov Homology from Mirror Symmetry*

June 3, 2021, 4:15pm, online:**Constantin Teleman**(University of California, Berkeley)*Towards a universal target for TQFTS*

May 20, 2021, 4:15pm, online:**Stefano Negro**(New York University)*The ODE/IM correspondence. A look to the past and one to the future*

April 29, 2021, 4:15pm, online:**Alexei Oblomkov**(University of Massachussetts, Amherst)*Kapustin-Saulina-Rozansky Topological quantum field theories (TQFT) and knot homology*

April 15, 2021, 4:15pm, online:**Davide Gaiotto**(Perimeter Institute, Canada)*4d SYM applications to analytic Geometric Langlands*

February 18, 2021, 4:15pm, online:**Pierrick Bousseau**(ETH Zürich)*The skein algebra of the 4-punctured sphere from curve counting*

February 4, 2021, 4:15pm, online:**Fernando Marchesano**(IFT Madrid)*Module spaces in quantum gravity*

January 21, 2021, 4:15pm, online:**Douglas Stanford**(Stanford University)*Wormholes and random matrices*

January 7, 2021, 4:15pm, online:**Fabian Haiden**(University of Oxford)*Motivic Donaldson-Thomas invariants of flat surfaces*

December 10, 2020, 4:15pm, online:**Eran Palti**(Ben Gurion University)*The Cosmological Constant and the Swampland*

November 26, 2020, 4:15pm, online:**Kevin Costello**(Perimeter Institute)*A mathematical formulation of holography*

November 12, 2020, 4:15pm, online:**Tom Rudelius**(IAS Princeton)*Black Holes to Algebraic Curves: Consequences of the Weak Gravity Conjecture*

July 9, 2020, 2:15pm, online:**Double-Seminar***Topological phases of matter, matrix product states, and tensor categories*

June 11, 2020, 4:15pm, online:**Nils Carqueville**(Universität Wien)*Topological Quantum Field Theory with Defects*

May 7, 2020, 4:15pm, online:**Matthias Gaberdiel**(ETH)*An exact AdS/CFT duality*

January 30, 2020, 4:15pm, DESY, building 2a, Seminarraum 2:**Thomas Grimm**(University of Utrecht, NL)*On imprints of quantum gravity and their fascinating mathematics*

January 16, 2020, 4:15pm, GEOMATIKUM, lecture theatre 6:**Timo Weigand**(Universität Mainz)*Quantum Gravity Constraints, Emergent Strings and Geometry*

December 19, 2019, 4:15pm, DESY, building 2a, Seminarraum 2:**Thomas Dumitrescu**(UCLA, USA)*From Seiberg-Witten Theory to Non-Supersymmetric Gauge Dynamics*

December 5, 2019, 4:15pm, GEOMATIKUM, lecture theatre 6:**Tudor Dimofte**(University of California, Davis, USA)*3d Gauge Theories and Representation Theory*

November 14, 2019, 4:15pm, DESY, building 2a, Seminarraum 2:**Double-Seminar***JT gravity and Mirzakhani's recursion*

October 24, 2019, 4:15pm, GEOMATIKUM, lecture theatre 6:**Harold Williams**(University of California, Davis, USA)*The algebraic geometry of Wilson-'t Hooft lines in 4d N=2 gauge theories*

July 4, 2019, 4:15pm, GEOMATIKUM. lecture theatre H2:**Double Seminar***Integrable PDEs, Riemann-Hilbert correspondence*

and free fermion conformal field theory

June 20, 2019, 2:15pm, DESY, building 2a, Seminarraum 2:**Sergey Derkachov**(PDMI, St. Petersburg)*Separation of variables and calculation of the Feynman diagrams*

June 6, 2019, 4:15pm, GEOMATIKUM, lecture theatre H2:**Tom Bridgeland**(University of Sheffield)*Geometry from Donaldson-Thomas invariants*

May 16, 2019, 2:15pm, DESY, building 2a, Seminarraum 2:**Double-Seminar***Integrable PDEs, Riemann-Hilbert correspondence*

and free fermion conformal field theory

May 2, 2019, 4:15pm, GEOMATIKUM, lecture theatre H2:**Double Seminar***Integrable PDEs, Riemann-Hilbert correspondence*

and free fermion conformal field theory

April 18, 2019, 2:15pm, DESY, building 2a, Seminarraum 2:**Nils Carqueville**(University of Vienna)*Topological quantum field theory with defects*

April 4, 2019, 4:15pm, GEOMATIKUM, lecture theatre H2:**Sara Pasquetti**(Università di Milano-Bicocca)*Dualities and correspondences in SUSY gauge theories*

January 24, 2019, 4:15pm, DESY, building 2a, Seminarraum 2:**Jasper Stokman**(University of Amsterdam)*Harish-Chandra series and boundary correlation functions*

January 10, 2019, 4:15pm, GEOMATIKUM, lecture theatre 6:**Double Seminar***Disc (E_k) algebras in TQFT and SUSY QFT*

December 13, 2018, 4:15pm, DESY, building 2a, Seminarraum 2:**André Henriques**(Oxford)*What Chern-Simons theory assigns to a point*

November 29, 2018, 4:15pm, GEOMATIKUM, lecture theatre 6:**Double Seminar***Disc (E_k) algebras in TQFT and SUSY QFT*

November 15, 2018, 4:15pm, DESY, building 2a, Seminarraum 2:**Hugo Duminil-Copin**(IHES)*Counting self-avoiding walks*

November 1, 2018, 4:15pm, GEOMATIKUM, lecture theatre 6:**Thomas Willwacher**(ETH Zürich)*Models for configuration spaces through Feynman diagrams*

July 12, 2018, 4:15pm, DESY, building 2a, Seminarraum 2:**Eric Sharpe**(Virginia Tech, USA)*A proposal for nonabelian mirrors in two-dimensional theories*

June 28, 2018, 4:15pm, GEOMATIKUM, lecture theatre 2:**Double Seminar***Flat connections and geometric quantisation*

May 31, 2018, 4:15pm, DESY, building 2a, Seminarraum 2:**Sergei Gukov**(Caltech, USA & MPI f. Mathematik, Bonn)*What are next generation MTCs and TQFTs?*

May 3, 2018, 4:15pm, GEOMATIKUM, lecture theatre 2:**Joseph Minahan**(Uppsala University, Sweden)*Super Yang-Mills on d-spheres*

May 3, 2018, 2:45pm, GEOMATIKUM, lecture theatre 2:**Bin Gui**(Vanderbilt University, USA)*Some unitarity problems in 2D conformal field theory*

April 19, 2018, 2:15pm, DESY, building 2a, Seminarraum 2:**Double Seminar***Flat connections and geometric quantisation*

April 5, 2018, 4:15pm, GEOMATIKUM, lecture theatre 2:**Giovanni Felder**(ETH Zürich)*Gauge theory partition functions, representation schemes and random matrices*

January 11, 2018, 4:15pm, GEOMATIKUM, lecture theatre 6:**Antti Kupiainen**(University of Helsinki)*Proof of the DOZZ Formula*

December 14, 2017, 2:15pm, DESY, building 2a, Seminarraum 2:**Double Seminar***Slightly more advanced topics in conformal field theory*

November 30, 2017, 4:15pm, GEOMATIKUM, lecture theatre 6:**Damien Calaque**(Université de Montpellier)*Two examples of fully extended TFTs*

November 16, 2017, 4:15pm, DESY, building 2a, Seminarraum 2:**Gus Schrader**(Columbia University (NY))*Quantum total positivity and continuous tensor categories*

November 2, 2017, 4:15pm, GEOMATIKUM, lecture theatre 6:**Peter Teichner**(MPI Bonn)*Computing deformation classes of invertible field theories*

October 19, 2017, 2:15pm, DESY, building 2a, Seminarraum 2:**Double Seminar***Slightly more advanced topics in conformal field theory*

June 22, 2017, 4:15pm, GEOMATIKUM, lecture theatre 2:**Laura Schaposnik**(University of Illinois at Chicago)*On the geometry of the moduli space of Higgs bundles*

June 1, 2017, 2:15pm, DESY, building 2a, Seminarraum 2:**Double-Seminar***Hitchin Systems, Non-Abelian Hodge Theory and Wall Crossing*

May 11, 2017, 4:15pm, GEOMATIKUM, lecture theatre 2:**Domenico Monaco**(Universität Tübingen)*Topological and gauge-theoretic invariants in condensed matter systems*

April 27, 2017, 4:15pm, DESY, building 2a, Seminarraum 2:**Maxim Zabzine**(Uppsala University)*Virasoro constraints and localization*

April 13, 2017, 2:15pm, GEOMATIKUM, lecture theatre 2:**Double-Seminar***Hitchin Systems, Non-Abelian Hodge Theory and Wall Crossing*

January 12, 2017, 4:15pm, DESY, building 2a, Seminarraum 2 :**Christoph Keller**(ETH Zürich)*Mathieu Moonshine and Symmetry Surfing*

December 15, 2016, 4:15pm, GEOMATIKUM, lecture theatre 6:**Andy Neitzke**(Universität Texas)*Abelianization in Chern-Simons theory*

November 17, 2016, 4:15pm, GEOMATIKUM, lecture theatre 2:**Artan Sheshmani**(MIT und Universität Aarhus)*Nested Hilbert schemes, local Donaldson-Thomas theory*

July 14, 2016, 4:15pm, GEOMATIKUM, lecture theatre 2:**Jürg Fröhlich**(ETH Zürich, CH)*Randomness in Quantum Mechanics - the ETH approach*

June 23, 2016, 4:15pm, DESY, building 2a, Seminarraum 2:**David Jordan**(University of Edinburgh, UK)*Integrating quantum groups over surfaces*

June 2, 2016, 4:15pm, DESY, building 2a, Seminarraum 2:**Manfred Salmhofer**(Univ. Heidelberg)*Functional Renormalization*

April 21, 2016, 4:15pm, DESY, building 2a, Seminarraum 2:**Daniele Dorigoni**(Durham University, UK)*Resurgence and Trans-Series in Quantum Field Theory*

January 28, 2016, 4:15pm, DESY, building 61, Hörsaal:**Marco Benini**(Univ. Potsdam)*Homotopical computations for Abelian gauge theory Slides*

January 14, 2016, 4:15pm, GEOMATIKUM, lecture theatre 2:**Stefan Theisen**(MPI Golm)*Anomalies and Conformal Manifolds*

December 17, 2015, 4:15pm, DESY, building 2a, Seminarraum 2:**Don Zagier**(MPI Bonn)*A link between two algebraic structures*

December 3, 2015, 4:15pm, GEOMATIKUM, lecture theatre 2:**Hermann Schulz-Baldes**(FAU Erlangen-Nürnberg)*Topological insulators: from K-theory to physics*

November 19, 2015, 4:15pm, DESY, building 2a, Seminarraum 2:**Gaetan Borot**(MPI Bonn)*The topological content of 2d rational CFTs*

October 29, 2015, 4:15pm, DESY, building 2a, Seminarraum 2:**Kenji Iohara**(Univ. Lyon)*Super Virasoro Algebras and their Variants*

June 11, 2015, 4:15pm, GEOMATIKUM, lecture theatre 2:**Jan Manschot**(Trinity College Dublin)*BPS Bound States and Quivers*

April 30, 2015, 4:15pm, DESY, building 2a, Seminarraum 2:**Niklas Beisert**(ETH Zürich)*Smooth Wilson Loops in N=4 Superspace and Yangian Symmetry*

April 16, 2015, 4:15pm, GEOMATIKUM, lecture theatre 2:**Gleb Arutyunov**(Universität Hamburg)*R-matrix Quantization of the Ruijsenaars-Schneider Models*

January 29, 2015, 4:15pm, GEOMATIKUM, lecture theatre 2:**Stefan Hollands**(Universität Leipzig)*Black holes and thermodynamics*

November 20, 2014, 6:00pm, GEOMATIKUM, lecture theatre 2:**Matthias Christiandl**(University of Copenhagen)*From Pauli's Principle to Fermionic Entanglement*

October 23, 2014, 4:15pm, GEOMATIKUM, lecture theatre 2:**Miranda Cheng**(University of Amsterdam)*Moonshine and String Theory*

July 10, 2014, 4:15pm, DESY, building 2a, Seminarraum 2:**Ivan Smith**(University of Cambridge, UK)*Quadratic differentials, stability conditions and symplectic topology*

May 15, 2014, 4:15pm, GEOMATIKUM, lecture theatre 2:**Vladimir Fateev**(Russian Academy of Sciences, Moscow)*Alday-Gaiotto-Tachikawa conjecture and integrability*

April 24, 2014, 4:15pm, DESY, building 2, Seminarraum 2:**Konrad Waldorf**(Universität Greifswald)*String geometry and spin geometry on loop spaces*

April 10, 2014, 4:15pm, GEOMATIKUM, lecture theatre 2:**François Labourie**(Orsay, France)*The algebra of pairs swapping*

January 30, 2014, 4:15pm, GEOMATIKUM, lecture theatre 2:**Bertrand Eynard**(CEA, Salclay, France)*Topological recursion and moduli spaces, Laplace transform and Mirror symmetry*

January 16, 2014, 4:15pm, DESY, building 2a, Seminarraum 2:**Oleg Lisovyy**(Université deTours, France)*Painlevé funcitons and conformal blocks*

December 19, 2013, 4:15pm, GEOMATIKUM, lecture theatre 2:**Mina Aganagic**(University of California, Berkeley, USA)*A Refinement of Chern-Simons Theory and Knot Homology*

November 28, 2013, 4:15pm, DESY, building 2a, Seminarraum 2:**Arthur Bartels**(Universität Münster)*Conformal Nets as higher von Neumann Algebras*

November 14, 2013, 4:15pm, GEOMATIKUM, lecture theatre 2:**Elmar Schrohe**(Leibniz Universität Hannover)*A Families Index Theorem for Boundary Value Problems*

July 11, 2013, 4:15pm, DESY, building 2a, Seminarraum 2:**Mark Gross**(UC San Diego, USA)*Mirror symmetry and cluster algebras*

June 13, 2013, 4:15pm, DESY, building 2a, Seminarraum 2:**Philippe Di Francesco**(Gif-sur-Yvette, France)*Cluster Algebras: from Combinatorics to Statistical Physics*

May 2, 2013, 4:15pm, DESY, building 2a, Seminarraum 2:**Dorothea Bahns / Christian Bär**(Univ. Göttingen / Univ. Potsdam)*Microlocal analysis in Quantum Field Theory / Path integrals on curved spaces*

January 31, 2013, 4:15pm, GEOMATIKUM, lecture theatre 2:**Eric Vasserot**(IMJ, Paris)*AGT conjecture and Hall algebras*

January 17, 2013, 4:15pm, DESY, building 2a, Seminarraum 2:**Matthias Staudacher**(HU Berlin)*A Spectral Parameter for Scattering Amplitudes*

December 13, 2012, 4:15pm, GEOMATIKUM, lecture theatre 2:**Piotr Sulkowski**(Caltech/University of Amsterdam)*On knots, super-A-polynomial, and 3d gauge theories*

November 29, 2012, 4:15pm, DESY, building 2a, Seminarraum 2:**Lionel Mason**(St Peter's College Oxford)*Holomorphic linking in twistor space and the amplitude/Wilson-loop duality*

November 15, 2012, 4:15pm, GEOMATIKUM, lecture theatre 2:**Christian Blohmann**(MPI Bonn)*Hamiltonian Lie Algebroids and General Relativity*

November 1, 2012, 4:15pm, DESY, building 2a, Seminarraum 2:**Sander Zwegers**(Universität Kön)*An introduction to Nahm's conjecture*

October 18, 2012, 4:15pm, GEOMATIKUM, lecture theatre 2:**Daniel Waldram**(Imperial College London)*Generalised geometry and supergravity*

June 21, 2012, 4:15pm, GEOMATIKUM, lecture theatre 2:**Marcos Marino**(Universität Genf)*Three-dimensional superconformal field theories as Fermi gases*

June 7, 2012, 4:15pm, DESY, building 2a, Seminarraum 2:**John Cardy**(University of Oxford)*Discrete Holomorphicity, Integrability and Parafermions in Two Dimensions*

May 10, 2012, 4:15pm, DESY, building 2a, Seminarraum 2:**Martin Zirnbauer**(Universität Köln)*Of symmetries, symmetry classes, and symmetric spaces: from disorder and quantum chaos to topological insulators*

April 26, 2012, 4:15pm, GEOMATIKUM, lecture theatre 2:**Hans Jockers**(Universität Bonn)*Conifold Transitions in M-theory on Calabi-Yau fourfolds*

April 12, 2012, 4:15pm, DESY, building 2a, Seminarraum 2:**Sergei Gukov**(Caltech / MPI Bonn)*Quantization in Modern Mathematical Physics*

January 26, 2012, 4:15pm, GEOMATIKUM, lecture theatre 2:**Atish Dabholkar**(LPTHE Paris)*Quantum Entropy of Black Holes, Holography, and Number Theory*

January 12, 2012, 4:15pm, DESY, building 2a, Seminarraum 2:**Tamás Hausel**(Oxford)*Symmetries of SL(n) Hitchin fibers*

December 15, 2011, 4:15pm, GEOMATIKUM, lecture theatre 2:**Rinat Kashaev**(University of Geneva)*Quantum Chern-Simons theory with gauge group SL(2,C)*

December 1, 2011, 2:15pm, GEOMATIKUM, lecture theatre 2:**Richard Szabo**(Edinburgh)*String Theory and Higher Quantum Geometry*

November 17, 2011, 4:15pm, GEOMATIKUM, lecture theatre 2:**Olaf Lechtenfeld**(Hannover)*Instantons and Chern-Simons flows in d = 6, 7 and 8*

November 3, 2011, 4:15pm, DESY, building 2a, Seminarraum 2:**Alexander Bobenko**(TU-Berlin)*Discrete Riemann Surfaces*

October 20, 2011, 4:15pm, GEOMATIKUM, lecture theatre 2:**Helge Glöckner**(Universität Paderborn)*Continuity and differentiability properties of typical non-linear mappings between spaces of test functions*

June 30, 2011, 4:15pm, DESY, building 2a, Seminarraum 2:**T. Bridgeland**(University of Oxford, UK)*Stability conditions and quadratic differentials*

June 23, 2011, 4:15pm, GEOMATIKUM lecture theatre 2:**F. Malikov**(University of Southern California)*Localization of affine W-algebras*

May 26, 2011, 2:00pm, MINERALOGIE (Grindelallee 48):**within the workshop***"Higher Structures in Topology and Geometry V"*

May 12, 2011, 4:15pm, DESY, building 61, lecture hall:**Hubert Saleur**(CEA Saclay, Frankreich)*Edge states and sigma models*

April 28, 2011, 4:15pm, DESY, building 2a, Seminarraum 2:**Boris Springborn**(TU Berlin)*Discrete conformal maps and ideal hyperbolic polyhedra*

April 14, 2011, 4:15pm, GEOMATIKUM lecture theatre 2:**Don Zagier**(MPIM Bonn/Collège de France, Paris)*Mock modular forms: a new tool in mathematics and physics*

January 27, 2011, 4:15pm, GEOMATIKUM lecture theatre 2:**Andreas Ludwig**(UC Santa Barbara)*Classification of topological insulators and superconductors*

January 13, 2011, 4:15pm, DESY, building 2a, Seminarraum 2:**Fabian Essler**(University of Oxford, UK)*Finite Temperature and Quantum Quench Dynamics in Massive Integrable Quantum Field Theories*

December 16, 2010, 4:15pm, GEOMATIKUM lecture theatre 2:**Karl-Hermann Neeb**(Universität Erlangen-Nürnberg)*Semiboundedness in the representation theory of infinite dimensional Lie groups*

November 18, 2010, 4:15pm, GEOMATIKUM lecture theatre 2:**Markus Reineke**(Universität Wuppertal)*(Quantum) Donaldson-Thomas type invariants and quivers*

November 4, 2010, 4:15pm, DESY, building 2a, Seminarraum 2:**Roberto Longo**(University of Rome, Italy)*Operator Algebras, an Analog of the Beurling-Lax Theorem and Boundary QFT*

October 21, 2010, 4:15pm, GEOMATIKUM lecture theatre 2:**Jacopo Stoppa**(Trinity College, Cambridge)*D0-D6 states, Gromov-Witten invariants and universal covering quivers*

July 1, 2010, 4:15pm, GEOMATIKUM lecture theatre 2:**Peter Mayr**(LMU München)*(Quantum) Deformation of N=1 mirror symmetry*

June 3, 2010, 4:15pm, GEOMATIKUM lecture theatre 2:**Bernhard Krötz**(Leibniz Universität Hannover)*Kanonische Komplexifizierungen*

May 6, 2010, 4:15pm, DESY, building 2a, Seminarraum 2:**Joachim Cuntz**(Universität Münster)*Cantor systems and ring C*-algebras*

April 22, 2010, 4:15pm, GEOMATIKUM lecture theatre 2:**Nils Carqueville**(LMU München)*Quiver gauge theories from open topological string theory*

April 8, 2010, 4:15pm, DESY, building 2a, Seminarraum 2:**Martijn Wijnholt**(Harvard University)*Unification in M- and F-Theory*

March 12, 2010, 3:30pm, DESY, building 1, Seminarraum 4a:**F. Smirnov**(Paris)*One point functions in the Sine-Gordon model*

March 12, 2010, 2:00pm, DESY, building 1, Seminarraum 4a:**M. Jimbo**(Tokyo)*Hidden Grassmann structure of integrable models II. CFT limit*

March 12, 2010, 11:00am, DESY, building 1, Seminarraum 4a:**T. Miwa**(Kyoto)*Hidden Grassmann structure of integrable models I. XXZ model*

February 4, 2010, 4:15pm, GEOMATIKUM, lecture theatre H2:**CANCELLED: Dirk Kreimer**(Boston)*Progress with renormalizable field theories*

January 28, 2010, 4:15pm, GEOMATIKUM, lecture theatre 2:**Boris Pioline**(Paris)*Progress on hypermultiplet moduli spaces*

January 14, 2010, 4:15pm, DESY, building 2a, Seminarraum 2:**Krzysztof Gawedzki**(Lyon)*Gerbes and field theory*

December 3, 2009, 4:15pm, DESY, building 61, lecture theatre:**Catharina Stroppel**(Bonn)*A combinatorial construction of the fusion algebra and quantum cohomology*

November 19, 2009, 4:15pm, GEOMATIKUM, lecture theatre H2:**Eric Opdam**(Amsterdam)*Harmonic analysis and syntheses of Hecke algebras*

November 5, 2009, 4:15pm, DESY, building 61, lecture theatre:**David Hernandez**(CNRS - Ecole Polytechnique, Palaiseau)*Langlands duality for quantum groups and categorification*

October 22, 2009, 4:15pm, GEOMATIKUM, lecture theatre H2:**Thierry Barbot**(Avignon)*Spacetimes of constant curvature*

July 16, 2009, 4:15pm, DESY, Seminarraum 2:**A. Klemm**(Bonn)*Integrability in N=2 Gauge Theory with Matter*

July 2, 2009, 4:15pm, GEOMATIKUM, lecture thaetre H2:**A. Neitzke**(Harvard)*BPS Wall-Crossing and Hyperkahler Geometry*

June 18, 2009, 4:15pm, DESY, Seminarraum 2:**Hendryk Pfeiffer**(UBC)*Reconstructing algebras from monoidal categories*

May 28, 2009, 4:15pm, GEOMATIKUM, lecture thaetre H2:**A. Tomasiello**(Harvard)*Exploring the geometry of supergravity*

May 28, 2009, 2:15pm, GEOMATIKUM, lecture theatre H2:**S. Shatashvili**(Trinity College Dublin)*Superpotentials and Yang's functions*

May 14, 2009, 4:15pm, DESY, Seminarraum 2:**V. Fock**(Strasbourg)*Higher Teichm*

April 30, 2009, 4:15pm, GEOMATIKUM, lecture thaetre H2:**C. Voisin**(IHES)*Hodge theory and cohomology algebras of Kaehler and complex projective manifolds*

April 16, 2009, 4:15pm, DESY, Seminarraum 2:**B. Siebert**(Hamburg)*A toolkit for Calabi-Yau and related geometries*

February 5, 2009, 4:15pm, DESY, building 61, lecture theatre:**D. Ben-Zvi**(Texas)*Topological Field Theory and Representation Theory*

January 22, 2009, 4:15pm, GEOMATIKUM, lecture theatre H2:**W. Mueller**(Bonn)*Spectral theory on locally symmetric spaces and automorphic forms*

January 8, 2009, 4:15pm, DESY, building 61, lecture theatre:**Kluemper***Methods and scope of investigations of integrable quantum systems at finite temperature*

December 18, 2008, 4:15pm, DESY, building 61, lecture theatre:**A. Frabetti**(Lyon)*Hopf algebras and Phi^3 renormalization factors*

December 4, 2008, 4:15pm, GEOMATIKUM, lecture theatre H2:**W. Soergel**(Freiburg)*Lokalisierung von Darstellungen*

November 20, 2008, 4:15pm, DESY, Seminarraum 2:**Johannes Walcher**(CERN)*The Real Topological String*

November 6, 2008, 4:15pm, GEOMATIKUM, lecture theatre H2:**W. van Suijlekom**(Nijmegen)*Renormalization Hopf algebras and BRST-symmetries*

October 23, 2008, 4:15pm, DESY, building 61, lecture theatre:**Frank Reidegeld**(Hamburg)*Spin(7)-manifolds of cohomogeneity one*

July 3, 2008, 4:15pm, GEOMATIKUM, lecture theatre H2:**Martin Guest**(Tokyo)*From Quantum Cohomology to Integrable Systems*

June 5, 2008, 4:15pm, GEOMATIKUM, lecture theatre H2:**Jochen Brüning**(Berlin)*Index theorems for singular Dirac operators*

May 22, 2008, 4:15pm, DESY, Seminarraum 2:**Bertrand Eynard**(Gif-sur-Yvette)*Symplectic invariants of spectral curves and their applications to enumerative geometry*

May 8, 2008, 4:15pm, GEOMATIKUM, lecture theatre H2:**Urs Schreiber**(Hamburg)*Lie n-algebroids and the BRST complex*

April 17, 2008, 4:15pm, DESY, Seminarraum 2:**Anton Alekseev***The Kashiwara-Vergne conjecture and Drinfeld's associators*

January 17, 2008, 4:15pm, DESY, Seminarraum 2:**Katrin Wendland**(Augsburg)*Geometry and beyond for K3 and one of its higher dimensional cousins*

December 20, 2007, 4:15pm, GEOMATIKUM, lecture theatre H2:**Martin Zirnbauer**(Köln)*Riemannian symmetric superspaces and how they arise in random matrix theory*

November 22, 2007, 4:15pm, GEOMATIKUM, lecture theatre H2:**Andrew Swann**(Odense)*Twists, torsion and T-duality*

November 8, 2007, 4:15pm, DESY, Seminarraum 2:**Matthias Schwarz**(Leipzig)*String Topology and Floer Homology*

October 25, 2007, 4:15pm, GEOMATIKUM, lecture theatre H2:**Daniel Stevenson**(Hamburg)*The WZW action and its relation to gerbes with connection on Lie groups*

June 28, 2007, 4:15pm, GEOMATIKUM, lecture theatre H2:**Walter Freyn**(Augsburg)*Kac-Moody symmetric spaces*

May 24, 2007, 4:15pm, GEOMATIKUM, lecture theatre H2:**Gerd Laures**(Bochum)*Elliptic Cohomology: Old and New*

May 10, 2007, 4:15pm, DESY, Seminarraum 2:**Alexei Semikhatov***Models of logarithmic CFT: how far can we go with representation theory?*

April 12, 2007, 4:15pm, GEOMATIKUM, lecture theatre H2:**Lorenz Schwachhöfer**(Dortmund)*Manifolds with large isometry group and lower curvature bounds*

February 1, 2007, 4:15pm, GEOMATIKUM, lecture theatre H2:**Gerhard Huisken**(MPI Golm)*Unifomisation theorems via the heat equation*

February 1, 2007, 2:15pm, GEOMATIKUM; lecture theatre H2:**Frank Klinker**(Dortmund)*A geometric SUSY-representation on deformed supermanifolds*

January 18, 2007, 4:15pm, DESY, Seminarraum 2:**Jean-Marc Schlenker**(Toulouse)*From earthquakes to black holes*

December 7, 2006, 4:15pm, DESY, Seminarraum 2:**Vladimir Fock***Cluster description of Poisson-Lie groups*

November 16, 2006, 4:15pm, GEOMATIKUM, lecture theatre H2:**Christian Bär**(University of Potsdam)*Path integrals on manifolds via finite dimensional approximation*

November 9, 2006, 4:15pm, GEOMATIKUM, room 241:**Simon Willerton**(Sheffield)*Topological quantum field theory and gerbes*

July 13, 2006, 4:15pm, GEOMATIKUM, lecture theatre H3:**Thomas Mohaupt**(Liverpool)*Black hole partition functions, strings and duality*

June 29, 2006, 4:15pm, DESY, Seminarraum 2:**Alexei Bondal**(Steklov Institute, Moskow)*Integrable systems related to bilinear forms*

June 15, 2006, 4:15pm, GEOMATIKUM, lecture theatre H3:**Jean-Baptiste Butruille**(Ecole Polytechnique)*Nearly Kähler manifolds and 3-symmetric spaces*

June 1, 2006, 4:15pm, DESY, Seminarraum 2:**Mathai Varghese**(Adelaide)*T-duality via noncommutative geometry*

May 4, 2006, 4:15pm, DESY, Seminarraum 2:**Frederik Witt**(Ecole Polytechnique)*Generalised G-structures, variational principles and type II supergravity*

April 20, 2006, 4:15pm, GEOMATIKUM, room 241:**Daniel Huybrechts**(Bonn)*Stability and derived categories*