SEMINARS, CMSA EVENTS
October 26, 2022 9:00 amThe notion of topological phases has dramatically changed our understanding of insulators. There is much to learn about a band insulator beyond the assertion that it has a gap separating...
Read more
SEMINARS, OPEN NEIGHBORHOOD
October 26, 2022 4:30 pmElliptic curves are ubiquitous in number theory, algebraic geometry, complex analysis, cryptography, physics, and beyond. They were present in Diophantus' Arithmetica (3rd century AD) and, nowadays, they are more relevant...
Read more
INFORMAL GEOMETRY AND DYNAMICS, SEMINARS
October 26, 2022 4:00 pmThis seminar will be held in Science Center 530 at 4:00pm on Wednesday, October 26th. Please see the seminar page for more details: https://www.math.harvard.edu/~ctm/sem
Read more
SEMINARS, NUMBER THEORY
October 26, 2022 3:00 pmThe usual language of algebraic geometry is not appropriate for arithmetical geometry: addition is singular at the real prime. We developed two languages that overcome this problem: one replace s...
Read more
SEMINARS, CMSA EVENTS
October 26, 2022 2:00 pmSpeakers: João Araújo (Mathematics Department, Universidade Nova de Lisboa) and Michael Kinyon (Department of Mathematics, University of Denver) Bill McCune produced the program EQP that deals with first order logic...
Read more
SEMINARS, CMSA EVENTS
October 26, 2022 12:30 pmA k-clique in a graph G is a subgraph of G on k vertices in which every pair of vertices is linked by an edge. Cliques are a natural notion...
Read more
SEMINARS, CMSA EVENTS
October 25, 2022 9:00 amIn two dimensions, one can study quantum field theories on unorientable manifolds by introducing crosscaps. This defines a class of states called crosscap states which share a few similarities with the...
Read more
SEMINARS, HARVARD-MIT ALGEBRAIC GEOMETRY
October 25, 2022 3:00 pmCohomology groups of moduli spaces of curves are fruitfully studied from several mathematical perspectives, including geometric group theory, stably homotopy theory, and quantum algebra. Algebraic geometry endows these cohomology groups...
Read more
SEMINARS, CMSA EVENTS
October 21, 2022 9:30 amI'll introduce the higher-rank Donaldson--Thomas theory for toric Calabi--Yau threefolds, within the setting of equivariant K-theory. I'll present a factorization conjecture motivated by Physics. As a byproduct, I'll discuss some novel properties of...
Read more
Mathematical Logic, SEMINARS
October 21, 2022 2:00 pmHyperfiniteness via Borel asymptotic dimension, following https://arxiv.org/abs/2009.06721.
Read more