2023 - T2 - Higher structures in geometry and mathematical physics

Collection 2023 - T2 - Higher structures in geometry and mathematical physics

Organizer(s) Behrend, Kai ; Fantechi, Barbara ; Laurent-Gengoux, Camille ; Stiénon, Mathieu ; Xu, Ping
Date(s) 17/04/2023 - 14/07/2023
linked URL https://indico.math.cnrs.fr/event/7893/
40 72

Introduction to dg-manifolds, and homological vector fields - Part 1

By Camille Laurent-Gengoux

We introduce the foundations of dg-manifolds, alias Q-manifolds, especially the Z-graded case, with a particular insistance on completion (we will use Kotov-Salnikov version of the latter). Although the material is well-known by experts, finding consistent references is not easy, so we hope that this mini-course fills a gap.

1 - Symmetric algebras, the problem of completion. Definition of Q-manifolds, their morphims and its homotopy equivalences. Boring and precise definitions. Red line will be : What makes sense geometrically in a Q-manifold?

2 - More insight about: what is the underlying geometry of a Q-manifold ? (Based on recent works by Kotov and Salnikov.)

3 - Exercices and examples.

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