BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Joerg Teschner (DESY) DTSTART:20220314T190000Z DTEND:20220314T200000Z DTSTAMP:20260423T021428Z UID:WHCGP/51 DESCRIPTION:Title: T he complex geometry of topological string partition functions\nby Joer g Teschner (DESY) as part of Western Hemisphere colloquium on geometry and physics\n\n\nAbstract\nThe goal of this talk will be to review some aspec ts of a program inspired by work of Tom Bridgeland aiming at a non-perturb ative characterisation of topological string partition functions. The prog ram is based on two main ingredients: The complex geometry of the underlyi ng moduli spaces on the one hand\, and cluster algebra structures defined by BPS- or DT-invariants on the other hand. The general picture is nicely illustrated by the Borel summation of the conifold partition functions rec ently studied with M. Alim\, A. Saha and I. Tulli\, with Stokes jumps of t he partition functions getting related to wall-crossing phenomena in the t heory of DT-invariants. Based on this and other examples we will propose a conjectural characterisation of the partition functions for local Calabi- Yau manifolds\, generalising earlier proposals by Marino and collaborators \, and related to earlier proposals by Alexandrov\, Pioline and collaborat ors based on the geometry of hypermultiplet moduli spaces.\n LOCATION:https://researchseminars.org/talk/WHCGP/51/ END:VEVENT END:VCALENDAR