2022-2023 Low Regularity Physics and Geometry Seminar

July 1, 2022 to June 30, 2023, The Fields Institute

Location: Online

Description

This seminar, which is part of the Thematic Program on Nonsmooth Riemannian and Lorentzian Geometry, meets in person at the Fields Institute in FL210 on Wednesday afternoons and is also open to watching online via Zoom. To encourage collaboration between postdocs and senior participants, the speakers will be paired:

2:00-3:00 pm: a senior speaker presents an introductory talk

3:30-4:30 pm: a junior speaker presents a related talk

All talks will be related in some way to the geometry and physics of general relativity in settings where there is low regularity and singularities may occur.

Organizers: Ghazal Geshnizjani, Robert McCann, Christina Sormani, and Mathias Braun

To learn more about this seminar, visit the seminar's webpage: https://sites.google.com/site/professorsormani/home/lorephygeseminar.

Schedule

Wednesday, August 17th, 2022
15:30 to 16:30	Black holes as a tool to study the dynamics of spacetime Maxence Corman, Perimeter Institute Location:Fields Institute, Room 230

Past Talks

Wednesday, August 10th, 2022
14:00 to 15:00	The Penrose tiling, self-similar quasicrystals, and fundamental physics? Latham Boyle, Perimeter Institute Location:Fields Institute, Room 230
15:30 to 16:30	Lorentzian length spaces - a synthetic approach to Lorentzian geometry Clemens Saemann, University of Vienna Location:Fields Institute, Room 230

Wednesday, August 3rd, 2022
14:00 to 15:00	Rigidity of Riemannian Penrose inequality with corners Siyuan Lu, McGill University and McMaster University Location:Fields Institute, Room 230
15:30 to 16:30	Regularity and the A3w condition for Monge–Ampère type equations Cale Rankin, The Fields Institute Location:Fields Institute, Room 230

Wednesday, July 27th, 2022
14:00 to 15:00	Rigidity of Riemannian embeddings of discrete metric spaces. Boaz Klartag, Weizmann Institute of Science Location:Fields Institute, Room 230
15:30 to 16:30	Towards multi-dimensional localisation Krzysztof Ciosmak, University of Oxford Location:Fields Institute, Room 210

Wednesday, July 20th, 2022
14:00 to 15:00	A nonsmooth approach to Einstein's theory of gravity Robert McCann, University of Toronto Location:Fields Institute, Room 210
15:30 to 16:30	Timelike curvature-dimension conditions for Lorentzian spaces via Rényi's entropy Mathias Braun, University of Toronto Location:Fields Institute, Room 210

Wednesday, July 13th, 2022
14:00 to 15:00	Introduction to Cosmological Perturbation Theory Ghazal Geshnizjani, University of Waterloo Location:Fields Institute, Room 210
15:30 to 16:30	Stability of singularity-resolving effective theories of gravity Jerome Quintin, The Fields Institute Location:

Wednesday, July 6th, 2022
14:00 to 15:00	Welcome to Nonsmooth Riemannian and Lorentzian Geometry Christina Sormani, CUNYGC and Lehman College
15:30 to 16:30	An Introduction to Gromov-Hausdorff Convergence and Low Regularity Riemannian Geometry Jikang Wang Location:Fields Institute, Room 210