Wed | Oct 09 | 09:00 | Peter Kristel | 2-vector bundles | |

Wed | Sep 18 | 16:00 | Thang Le | Algebraic structures of skein algebras | |

Wed | Sep 11 | 15:00 | Chris Elliott | Topological twists of superconformal field theory | |

Wed | Sep 04 | 16:00 | Raphaël Rouquier | 2-Representation theory of gl(1|1) | |

Wed | Aug 28 | 16:00 | Colleen Delaney | An efficient* classical algorithm for some quantum invariants of 3-manifolds | |

Wed | Aug 21 | 16:00 | Tashi Walde | Assembly of constructible factorization algebras | |

Wed | Aug 14 | 16:00 | Clark Barwick | Factorization algebras in quite a lot of generality | |

Wed | Aug 07 | 16:00 | David Ayala | Factorization homology of higher categories | |

Wed | Jul 31 | 16:00 | Jackson Van Dyke | Geometric quantization, fusion categories, and Rozansky–Witten theory | |

Wed | Jul 24 | 16:00 | Anton Kapustin | Topological invariants of gapped states and cosheaves on sites | |

Wed | Jul 17 | 16:00 | Monica Vazirani | Skeins on tori | |

Wed | Jul 10 | 14:00 | Minghao Wang | Feynman graph integrals from topological-holomorphic theories and their applications | |

Wed | Jul 03 | 16:00 | Gregor Schaumann | State spaces in TFT: Quivers and infinite particle algebras | |

Wed | Jun 26 | 16:00 | Agnès Beaudry | Homotopy theory of parametrized quantum systems | |

Wed | Jun 19 | 16:00 | Catherine Meusburger | Quantum double models and Dijkgraaf-Witten TQFT with defects | |

Wed | Jun 12 | 16:00 | Yang Yang | RCFT correlators as equivalences of modular functors | |

Wed | Jun 05 | 16:00 | Nils Carqueville | Orbifold completion of 3-categories | |

Wed | May 29 | 16:00 | Thomas Wasserman | The Landau-Ginzburg / conformal field theory correspondence | |

Wed | May 22 | 16:00 | Christoph Schweigert | Traces and higher structures | |

Wed | May 08 | 16:00 | Pranav Prandit | Deformations of objects in higher categories | |

Thu | May 02 | 16:00 | Inbar Klang | An algebraic topology perspective on factorization homology | |

Wed | Apr 24 | 16:00 | Sebastian Schulz | Spectral networks and G2 | |

Wed | Apr 17 | 16:00 | Adrien Brochier | A classification of modular functors from generalized skein theory | |

Fri | Apr 12 | 13:00 | Jan-Willem van Ittersum | Shifted symmetric functions, quasimodular forms and Hamiltonian operators | |

Wed | Apr 10 | 16:00 | Cristina Anghel | A universal coloured Alexander invariant from configurations on ovals in the disc | |

Wed | Mar 20 | 17:00 | Marko Stošić | Combinatorics in knot-quiver correspondences | |

Wed | Mar 06 | 17:00 | Luuk Stehouwer | The Categorical Spin-Statistics Theorem: A TQFT Perspective | |

Wed | Feb 21 | 17:00 | Sam Gunningham | Skein theory and the geometric Langlands program | |

Wed | Feb 07 | 17:00 | Lukas Müller | Topological defects form higher dagger categories | |

Wed | Jan 31 | 17:00 | Nadia Ott | The super period map and the projectedness of supermoduli space | |

Wed | Jan 24 | 17:00 | Lukas Woike | An introduction to quantum representations of mapping class groups | |

Wed | Jan 10 | 17:00 | Marco De Renzi | Algebraic presentation of cobordisms and TQFTs | |

Thu | Dec 14 | 17:00 | Pedram Hekmati | Equivariant Floer homology and its applications | |

Wed | Dec 06 | 17:00 | Francesco Costantino | Stated skein modules of 3-manifolds and TQFTs | |

Wed | Sep 20 | 17:00 | Pavel Mnev | Why BF theory is not an Atiyah’s TQFT, and how the BV-BFV approach helps | |

Thu | Sep 14 | 16:00 | Kevin Walker | Low-dimensional H-bordism and H-modular TQFTs | |

Wed | Jul 26 | 16:00 | Anna Pachol | Quantum groups in the digital setting | |

Wed | Jul 19 | 16:00 | Fabian Hahner | Pure spinor techniques in (twisted) supergravity | |

Wed | Jul 12 | 16:00 | Pavel Etingof | Lie theory in tensor categories (with applications to modular representation theory) | |

Wed | Jul 05 | 16:00 | Surya Raghavendran | Twisted eleven-dimensional supergravity and infinite-dimensional exceptional simple super Lie algebras | |

Wed | Jun 28 | 16:00 | Patrick Kinnear | Varying the non-semisimple Crane–Yetter theory over the character stack | |

Wed | Jun 21 | 16:00 | Jennifer Brown | Defect Skein Theories | |

Wed | May 24 | 16:00 | Markus Upmeier | Invertible TQFTs and Atiyah–Singer index theory | |

Wed | May 17 | 16:00 | Benjamin Haïoun | Non-semisimple WRT as non-compact fully extended relative TQFTs | |

Wed | May 10 | 16:00 | David Ben-Zvi | A TQFT POV on L-functions | |

Wed | May 03 | 17:00 | Dmitri Nikshych | Witt groups of braided fusion categories and minimal non-degenerate extensions | |

Wed | Apr 26 | 16:00 | Julie Bergner | Models for $(\infty,n)$-categories with discreteness conditions | |

Wed | Apr 19 | 16:00 | Thomas Creutzig | Ribbon categories associated to gl(1|1) | |

Wed | Apr 12 | 16:00 | Ivan Contreras | Frobenius objects in the category of spans and the symplectic category | |

Wed | Apr 05 | 16:00 | Kevin Walker | Two approaches to a universal state sum | |

Wed | Mar 22 | 17:00 | Niklas Garner | VOAs and Twisted Chern-Simons-Matter TQFTs | |

Wed | Mar 01 | 17:00 | Matt Young | $U_q(\mathfrak{gl}(1 \vert 1))$ and $U(1 \vert 1)$ Chern–Simons theory | |

Wed | Feb 22 | 17:00 | Nathan Geer | Non-semisimple TQFTs | |

Wed | Feb 15 | 16:30 | Dan Freed | What is an anomaly? | |

Wed | Feb 08 | 17:00 | James Macpherson | Locally wide quasi-fiat 2-categories and their coalgebra 2-representations | |

Wed | Jan 25 | 17:00 | Marco Mackaay | 2-Representations of affine type A Soergel bimodules: some observations and examples | |

Wed | Dec 07 | 17:00 | Konstantin Eder | Super Cartan geometry and (loop) quantum supergravity | |

Wed | Nov 30 | 17:00 | Konrad Waldorf | A representation of the string 2-group | |

Wed | Nov 16 | 17:00 | Fiona Torzewska | Topological quantum field theories and homotopy cobordisms | |

Wed | Oct 26 | 16:00 | Marko Vojinovic | Insights into the Standard Model and quantum gravity from higher gauge theory | |

Wed | Sep 21 | 16:00 | Pavel Safronov | Skein modules and 4d TQFTs | |

Wed | Sep 14 | 16:00 | Marina Logares | Hitchin systems | |

Wed | Jun 29 | 16:00 | Radmila Sazdanovic | Bilinear pairings on two-dimensional cobordisms and generalizations of the Deligne category | |

Wed | Jun 15 | 16:00 | Marc Lackenby | Knot theory and machine learning | |

Wed | Jun 08 | 16:00 | Álvaro del Pino Gómez | h-Principles and applications to distributions | |

Wed | Jun 01 | 16:00 | Nima Moshayedi | Cutting-Gluing of TQFTs in the Symplectic Cohomological Formalism | |

Wed | May 25 | 16:00 | Simone Noja | The de Rham / Spencer double complex and the geometry of forms on supermanifolds | |

Tue | May 17 | 16:30 | Eugene Rabinovich | Classical Bulk-Boundary Correspondences via Factorization Algebras | |

Mon | May 09 | 14:00 | Nezhla Aghaei | Combinatorial quantisation of Supergroup Chern–Simons Theory | |

Wed | May 04 | 16:00 | Jamie Vicary | Introducing homotopy.io: A proof assistant for geometrical higher category theory | |

Wed | Apr 27 | 16:00 | Pavel Mnev | On the Fukaya-Morse A-infinity category | |

Wed | Apr 20 | 16:00 | Nezhla Aghaei | Combinatorial quantisation of Supergroup Chern–Simons Theory | |

Wed | Apr 13 | 16:00 | Ángel González Prieto | Topological Quantum Field Theories for Character Stacks | |

Wed | Apr 06 | 16:00 | Yonatan Harpaz | The cobordism hypothesis in dimension 1 | |

Wed | Mar 30 | 16:00 | Dmitri Pavlov | The geometric cobordism hypothesis | |

Wed | Mar 16 | 17:00 | Christoph Dorn | Manifold diagrams: Poincaré duality, singularities, and smooth structures | |

Wed | Mar 09 | 17:00 | Manuel Araújo | String diagrams for higher categories | |

Wed | Feb 16 | 17:00 | Daniel Grady | Deformation classes of invertible field theories and the Freed-Hopkins conjecture | |

Wed | Feb 02 | 17:00 | Emily Cliff | Moduli spaces of principal 2-group bundles and a categorification of the Freed–Quinn line bundle | |

Wed | Jan 26 | 17:00 | Jeffrey C. Morton | The Fock Pseudomonad: Groupoidifying Second Quantization | |

Wed | Jan 19 | 17:00 | Giorgio Trentinaglia | Simplicial vector bundles and representations up to homotopy | |

Wed | Dec 15 | 17:00 | Vladimir M. Stojanovic | Lie-algebraic aspects of quantum control: gate realization and W-to-GHZ state conversion | |

Wed | Nov 17 | 17:00 | Brian R. Williams | Exceptional super Lie algebras in twisted M-theory | |

Wed | Oct 13 | 16:00 | Tijana Radenković | Topological higher gauge theory - from 2BF to 3BF theory | |

Fri | Sep 24 | 16:00 | João Faria Martins | Quinn Finite Total Homotopy TQFT as a once-extended TQFT | |

Fri | Jun 25 | 16:00 | Fabian Haiden | Categorical Kähler Geometry | |

Fri | Jun 18 | 16:00 | Theo Johnson-Freyd | Higher S-matrices | |

Fri | Jun 04 | 16:00 | Ingmar Saberi | Twists of supergravity theories via algebraic geometry | |

Fri | May 28 | 16:00 | Dmitry Melnikov | Entanglement and complexity from TQFT | |

Fri | May 21 | 16:00 | Bruce Bartlett | Asymptotics of the classical and quantum $6j$ symbols | |

Fri | May 14 | 08:00 | Si Li | Geometry of Localized Effective Theories and Algebraic Index | |

Fri | May 07 | 16:00 | Christian Saemann | Adjusted Higher Gauge Theory: Connections and Parallel Transport | |

Fri | Apr 16 | 16:00 | Giordano Cotti | Quantum differential equations, qKZ difference equations, and helices | |

Fri | Apr 09 | 16:00 | Roger Picken | Link invariants from finite crossed modules and a lifting of the Eisermann invariant | |

Fri | Mar 19 | 18:00 | Pedro Resende | An abstract theory of physical measurements | |

Fri | Mar 19 | 17:00 | Fabio di Cosmo | Statistical Interpretation in the Schwinger’s picture of Quantum Mechanics | |

Fri | Mar 12 | 17:00 | Ikshu Neithalath | Skein Lasagna modules of 2-handlebodies | |

Fri | Mar 05 | 14:00 | Owen Gwilliam | Bulk-boundary correspondences with factorization algebras | |

Fri | Feb 26 | 17:00 | Ben Elias | Introduction to the Hecke category and the diagonalization of the full twist | |

Fri | Feb 19 | 17:00 | David Reutter | Semisimple topological field theories in even dimensions | |

Fri | Feb 12 | 17:00 | Florio Ciaglia | A groupoid-based perspective on quantum mechanics | |

Fri | Jan 29 | 17:00 | Severin Bunk | Universal Symmetries of Gerbes and Smooth Higher Group Extensions | |

Fri | Jan 22 | 17:00 | Renee Hoekzema | Manifolds with odd Euler characteristic and higher orientability | |

Fri | Jan 15 | 17:00 | Brent Pym | Multiple zeta values in deformation quantization | |

Fri | Jan 08 | 17:00 | Pedro Vaz | Categorification of Verma Modules in low-dimensional topology | |

Fri | Dec 18 | 17:00 | Penka Georgieva | Klein TQFT and real Gromov-Witten invariants | |

Fri | Dec 11 | 17:00 | Anna Beliakova | Cyclotomic expansions of the $gl_N$ knot invariants | |

Fri | Dec 04 | 17:00 | Victor Ostrik | Two dimensional topological field theories and partial fractions | |

Fri | Nov 20 | 17:00 | Tudor Dimofte | $3d$ A and B models and link homology | |

Fri | Nov 13 | 17:00 | Vladimir Dragović | Ellipsoidal billiards, extremal polynomials, and partitions | |

Fri | Nov 06 | 17:00 | Marco Mackaay | The double-centralizer theorem in 2-representation theory and its applications | |

Fri | Oct 30 | 17:00 | João Faria Martins | Crossed modules, homotopy 2-types, knotted surfaces and welded knots | |

Fri | Oct 16 | 16:00 | Miranda Cheng | Quantum modular forms and $3$-manifolds | |

Fri | Oct 09 | 16:00 | Alexander Shapiro | Cluster realization of quantum groups and higher Teichmüller theory | |

Fri | Oct 02 | 16:00 | Davide Masoero | Counting Monster Potentials | |

Fri | Sep 25 | 16:00 | André Henriques | Reps of relative mapping class groups via conformal nets | |

Fri | Sep 11 | 16:00 | Alexis Virelizier | Homotopy Quantum Field Theories | |

Fri | Jul 24 | 16:00 | Ezra Getzler | Gluing local gauge conditions in BV quantum field theory | |

Fri | Jul 17 | 16:00 | Pedro Boavida de Brito | Galois symmetries of knot spaces | |

Fri | Jul 10 | 16:00 | Ricardo Campos | The homotopy type of associative and commutative algebras | |

Fri | Jul 03 | 16:00 | Tom Sutherland | Mirror symmetry for Painlevé surfaces | |

Fri | Jun 26 | 16:00 | Marko Stošić | Rational and algebraic links and knots-quivers correspondence | |

Fri | Jun 19 | 16:00 | Mikhail Khovanov | Introduction to foam evaluation | |

Fri | Jun 12 | 16:00 | Antti Kupiainen | Integrability of Liouville Conformal Field Theory | |

Fri | Jun 05 | 16:00 | John Huerta | Bundle Gerbes on Supermanifolds | |

Fri | May 29 | 16:00 | Danica Kosanović | Knot invariants from homotopy theory | |

Fri | May 22 | 16:00 | Sergei Gukov | Hidden algebraic structures in topology | |