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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.
  • Next talks:

    May 2, 2024, 4:15pm, DESY, building 2a, Seminarraum 2:
    Emanuel Malek  (HU Berlin)
    tba

    May 30, 2024, 4:15pm, GEOMATIKUM, lecture theatre 2:
    Sara Tukachinsky (Tel Aviv University)
    Open Gromov-Witten theory -- introduction and recent developments

    June 13, 2024, 4:15pm, DESY, building 2a, Seminarraum 2:
    Miranda Cheng (Amsterdam / Tapei)
    tba

    June 27, 2024, 4:15pm, GEOMATIKUM, lecture theatre 2:
    Tamás Hausel (tbc) (ISTA)
    tba

  • History of talks:

    April 11, 2024, 4:15pm, GEOMATIKUM, lecture theatre 2:
    Robert König (TU München)
    Quantum fault-tolerance and locality

    January 25, 2024, 4:15pm, DESY, building 2a, Seminarraum 2:
    Sungkyung Kang (University of Oxford)
    Seiberg-Witten theory, homotopy-coherent group actions, and exotic Dehn twists

    January 11, 2024, 4:15pm, GEOMATIKUM, lecture theatre 3:
    Thomas Mohaupt (University of Liverpool)
    What is the T-dual of an event horizon?

    December 21, 2023, 4:15pm, GEOMATIKUM, lecture theatre 3:
    !!! ENTFÄLLT !!! Robert König  (TU München )
    Topological order and shallow quantum circuits

    December 7, 2023, 4:15pm, DESY, building 2a, SR 2 (virtual):
    Owen Gwilliam  (University of Massachusetts, Amherst )
    4-dimensional gauge theories and their holomorphic twists

    November 23, 2023, 4:15pm, DESY, building 2a, Seminarraum 2:
    Iñaki García Etxebarria (Durham University)
    Deriving SymTFTs from geometry

    November 2, 2023, 4:15pm, GEOM H3 (virtual):
    Hugh Thomas (Université du Québec à Montréal)
    String-like amplitudes for surfaces beyond the disk

    July 13, 2023, 4:15pm, GEOMATIKUM, lecture theatre 3:
    Hans Jockers (Johannes Gutenberg Universität Mainz)
    Quantum K-Theory and 3d Gauge Theories

    June 29, 2023, 4:15pm, DESY, building 2a, Seminarraum 2:
    Hartmut Weiß (Christian-Albrechts-Universität zu Kiel)
    On the modularity of gravitational instantons of type ALG

    June 15, 2023, 4:15pm, GEOMATIKUM, lecture theatre 3:
    Quoc Ho  (Hong Kong Univ. of Science & Technology)
    Character sheaves, HOMFLY-PT homology, and Hilbert schemes of points on $\mathbb{C}^2$

    May 25, 2023, 4:15pm, online:
    Mathew Bullimore  (Durham University)
    Higher Representations for Extended Operators

    May 11, 2023, 4:15pm, online:
    Thomas Lam (University of Michigan)
    Scattering amplitudes and configuration space

    April 27, 2023, 4:15pm, DESY, building 2a, Seminarraum 2:
    Doppelseminar Kramers--Wannier duality in (3+1)d field theory

    April 13, 2023, 4:15pm, GEOMATIKUM, lecture theatre 2:
    Doppelseminar Kramers-Wannier duality in the Ising model, part 1 + 2

    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

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