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Wall-crossing for Donaldson-Thomas invariants

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Post-edited
Authors : Bridgeland, Tom (Author of the conference)
CIRM (Publisher )

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wall-crossing iso-Stokes deformations Calabi-Yau categories stability condition Donaldson-Thomas invariants Kontsevich-Soibelman wall-crossing formula Riemann-Hilbert problem questions of the audience

Abstract : There is a very general story, due to Joyce and Kontsevich-Soibelman, which associates to a CY3 (three-dimensional Calabi-Yau) triangulated category equipped with a stability condition some rational numbers called Donaldson-Thomas (DT) invariants. The point I want to emphasise is that the wall-crossing formula, which describes how these numbers change as the stability condition is varied, takes the form of an iso-Stokes condition for a family of connections on the punctured disc, where the structure group is the infinite-dimensional group of symplectic automorphisms of an algebraic torus. I will not assume any knowledge of stability conditions, DT invariants etc.

MSC Codes :
14D20 - Algebraic moduli problems, moduli of vector bundles
14F05 - Sheaves, derived categories of sheaves and related constructions
18E30 - Derived categories, triangulated categories
32G15 - Moduli of Riemann surfaces, Teichmüller theory
81T20 - Quantum field theory on curved space backgrounds

    Information on the Video

    Film maker : Hennenfent, Guillaume
    Language : English
    Available date : 24/04/17
    Conference Date : 11/04/17
    Subseries : Research talks
    arXiv category : Algebraic Geometry ; Differential Geometry ; High Energy Physics
    Mathematical Area(s) : Algebraic & Complex Geometry ; Mathematical Physics
    Format : MP4 (.mp4) - HD
    Video Time : 01:26:09
    Targeted Audience : Researchers
    Download : https://videos.cirm-math.fr/2017-04-11_Bridgeland.mp4

Information on the Event

Event Title : Hodge theory, Stokes phenomenon and applications / Théorie de Hodge, phénomène de Stokes et applications
Event Organizers : Hertling, Claus ; Sabbah, Claude ; Sevenheck, Christian
Dates : 10/04/17 - 14/04/17
Event Year : 2017
Event URL : http://conferences.cirm-math.fr/1585.html

Citation Data

DOI : 10.24350/CIRM.V.19158403
Cite this video as: Bridgeland, Tom (2017). Wall-crossing for Donaldson-Thomas invariants. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.19158403
URI : http://dx.doi.org/10.24350/CIRM.V.19158403

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