researchseminars.org

Clément Canonne (University of Sydney)
2022-04-12 05:00 - 06:00 UTC | https://stable.researchseminars.org/talk/SMRIWhatIs_/1/
Title: 'What is deterministic amplification?' (https://stable.researchseminars.org/talk/SMRIWhatIs_/1/)
by Clément Canonne (University of Sydney) as part of SMRI 'What is ...?' Series

Lecture held in Quad S227 (for University of Sydney staff, students & affiliates only).
Abstract: TBA

Pedram Hekmati ((University of Auckland))
2022-04-26 05:00 - 06:00 | https://stable.researchseminars.org/talk/SMRIWhatIs_/2/
Title: What is a cohomological field theory? (https://stable.researchseminars.org/talk/SMRIWhatIs_/2/)
by Pedram Hekmati ((University of Auckland)) as part of SMRI 'What is ...?' Series

Lecture held in Quad S227 (for University of Sydney staff, students & affiliates only).

Abstract
Abstract: Many interesting invariants in geometry satisfy certain glueing or
factorisation conditions, that are often useful when doing calculations. Topological
quantum field theories (TQFTs) emerged in the 1980s as an organising structure for
invariants that are governed by bordisms. In 2 dimensions, bordisms are surfaces with
boundaries and the TQFT has a simple algebraic description. By remembering the
diffeomorphisms of the surfaces, one is lead to the notion of a cohomological field
theory.

This talk will give an overview of these ideas and be aimed at a broad audience.

Kenneth Ascher (University of California, Irvine)
2022-08-25 03:00 - 04:00 | https://stable.researchseminars.org/talk/SMRIWhatIs_/3/
Title: 'What is ...a moduli space?' (https://stable.researchseminars.org/talk/SMRIWhatIs_/3/)
by Kenneth Ascher (University of California, Irvine) as part of SMRI 'What is ...?' Series

Lecture held in Quad S223 (for University of Sydney staff, students & affiliates only).

Abstract
Moduli spaces are geometric spaces which parametrize equivalence classes of algebraic varieties. I will discuss the moduli space of algebraic curves (equivalently Riemann surfaces) of genus g, and use this example to motivate some interesting questions in higher dimensions.

Kari Vilonen (University of Melbourne)
2022-09-15 03:00 - 04:00 | https://stable.researchseminars.org/talk/SMRIWhatIs_/4/
Title: ‘What is …a Hodge module?’ (https://stable.researchseminars.org/talk/SMRIWhatIs_/4/)
by Kari Vilonen (University of Melbourne) as part of SMRI 'What is ...?' Series

Lecture held in Quad S223 (for University of Sydney staff, students & affiliates only).

Abstract
I will explain what a Hodge module is starting from Poincare.
