The upcoming talk
At the next session of the TCS,
on the 6th of May 2026,
at 2:15 – 4:00 p.m. CET / 3:15 – 5:00 p.m. EET
池田憲明
(Ike-da Nori-aki)
(Research Institute for Mathematical Sciences,
Kyoto University)
shall talk about
“Gauged AKSZ sigma models: Gauging of Poisson sigma models and Courant sigma models“.
Abstract
We propose a new class of sigma models by gauging of AKSZ sigma models. Analysis is based on graded manifold structures called Q-manifolds. As a typical example, we discuss extensions of Poisson sigma models. By introducing additional gauge symmetries, associated to a Lie groupoid (Lie algebroid) on the target space, Poisson sigma models are extended to gauged sigma models of generalized AKSZ type. The consistency of the theory is ensured by geometric conditions on Lie algebroids such as curvatures and torsions. We also present analysis of models in the presence of boundaries. If we have time, gauging of the Courant sigma model is discussed.
The talk is based on arXiv preprints: 2309.10996 [math.DG] and 2604.23496 [math-ph].
(All seminar talks are given on the online zoom platform. Unless requested otherwise by the speaker or required by the circumstances, and then specifically indicated in the announcement, the talks consist of two halves, 45 minutes each, separated by a 15-minute break. The web link for every session is circulated via the TCS mailing list. In order to be enlisted, please contact the Organisers.)
Calendar 2025/2026
| Date | Speaker (affiliation) | Title (with a link to the slides, whenever available) |
| October 15th, 2025 | Athanasios Chatzistavrakidis (Ruđer Bošković Institute, Zagreb) | Basic curvature tensors in geometry and physics |
| October 29th, 2025 | Martha Valentina Guarín Escudero (Charles University, Faculty of Mathematics and Physics, Prague) | Fedosov connections and L∞-algebras associated to dg-manifolds |
| November 12th, 2025 | Marcin Piątek (Instytut Fizyki, Uniwersytet Szczeciński) | Geometric Foundations of Celestial Amplitudes |
| December 3rd, 2025 | Jakub R. Filipek (WFUW, Warszawa) | Twisted Abelian Differential Cohomology and Weakly Abelian Lie Groups |
| December 17th, 2025 | Rafał R. Suszek (KMMF, WFUW) | Stacky Dynamics in the Shadows of Principaloid Bundles |
| January 13th, 2026 | Nikita Nekrasov (SCGP, Stony Brook, New York) | Geometry of relativistic hydrodynamics I |
| January 14th, 2026 | Nikita Nekrasov (SCGP, Stony Brook, New York) | Geometry of relativistic hydrodynamics II |
| February 18th, 2026 | Cristian Ortiz (IME-USP, São Paulo) | Morita equivalence of Lie groupoids |
| February 25th, 2026 | Mikołaj Korzyński (CFT PAN) | Weighing spacetime along the line of sight using times of arrival of electromagnetic signals |
| April 1st, 2026 | Gaëtan Borot (Institut für Mathematik, Humboldt-Universität zu Berlin) | Large N expansions for random partitions via Nekrasov equations |
| May 6th, 2026 | Noriaki Ikeda (Research Institute for Mathematical Sciences, Kyoto University) | Gauged AKSZ sigma models: Gauging of Poisson sigma models and Courant sigma models |
| May 20th, 2026 | ||
| June 3rd, 2026 | ||