A reduced word for a permutation of the symmetric group is its own commutation class if it has…
Seminars
Future and Ongoing Seminars
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
Speaker: Diogo Soares
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
We introduce the concept of a nonassociative (i.e. not necessarily associative) inverse…
Speaker: Mikhailo Dokuchaev
Online |
Geometry and Topology
I will present recent joint work with Jérémy Toulisse and Richard Wentworth on a differential…
Speaker: Brian Collier
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
In the 1950’s Davenport, Mirsky, Newman and Rado proved that if the integers are partitioned by…
Speaker: Martino Garonzi
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
The Gruenberg-Kegel graph of a group is defined as the graph whose vertices are the primes that…
Speaker: Diego Lucas Garcia
FC1 031 and online |
Algebra, Combinatorics and Number Theory
This has been an open question for more than 70 years. I'll review what is known, including some…
Speaker: Ken Brown
Past Seminars
FC1.031 |
There is a rich theory in dynamical systems involving the study of "shrinking targets". Given…
Speaker: Mark Pollicott
FC1 0.07 and online |
Algebra, Combinatorics and Number Theory
Towards a homological Kitaev model by Ulrich Krähmer (Dresden)
Speaker: Ulrich Krähmer
FC1.031 |
Dynamical Systems
The classical Livsic theorem is a simple and useful result for Anosov diffeomorphism (or flows)…
Speaker: Mark Pollicott
FC1 0.31 and online |
Algebra, Combinatorics and Number Theory
sl2-crystals and duality in monoidal categories ( joint w. T. Zorman)…
Speaker: Sebastian Halbig
FC1 1.09 |
Geometry and Topology
Abstract: …
Speaker: Juan Sebastian Numpaque
FC1 007 |
Algebra, Combinatorics and Number Theory
Hopf braces, related structures and their associated categories by Brais Ramos…
Speaker: Brais Ramos Pérez
Room FC1 1.09 |
Geometry and Topology
In this talk, I will describe how Riemannian submersions on a spacetime of the form $M_4 \times…
Speaker: João Baptista
FC1 007 |
Algebra, Combinatorics and Number Theory
Abstract: In 1892, Klein’s Erlangen program proposed that all geometric problems should…
Speaker: Claudio Piedade
Room FC1 1.09 |
After reviewing the classical theory of quiver moduli spaces via Mumford’s reductive GIT, I…
Speaker: Joshua Jackson
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
How much does the universal enveloping algebra of a Lie algebra remember about the Lie algebra…
Speaker: Ricardo Campos
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
Let $F$ be a family of finite groups closed under taking subgroups, quotients and finite direct…
Speaker: Martino Garonzi
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
The classification of tuples of matrices up to simultaneous conjugation is a classical problem…
Speaker: Rustam Turdibaev
FC1.007 and Online |
Semigroups, Automata and Languages
Given a set of generators of a finite semigroup, a natural way to show that a…
Speaker: Andrew Ryzhikov
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
Numerical semigroups are the subsemigroups of the set of natural numbers that are cofinite and…
Speaker: Neeraj Kumar
Online Zoom Meeting |
Semigroups, Automata and Languages
A monoid is said to be right noetherian if all of its right congruences are finitely…
Speaker: Craig Miller
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
A numerical semigroup $S$ is a cofinite submonoid of the aditive monoid $(\mathbb{N},+)$. The (…
Speaker: Manuel Delgado
Online Zoom Meeting |
Semigroups, Automata and Languages
HNN extensions can be used as a way to produce a more complicated group from a simpler one, they…
Speaker: Jonathan Warne
Room 0.31 |
Dynamical Systems
This a scientific meeting gathering researchers, PhD students, master students and undergraduate…
Speaker: Alex Genaro and Gustavo Pessil
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
In this talk, we will present the bijective correspondence between Young diagrams and proper…
Speaker: Mehmet Yesil
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
In this talk we present some properties of generalized torsion elements in groups. We describe…
Speaker: Raimundo de Araújo Bastos Júnior