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Seminars

Future and Ongoing Seminars

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 007 and Online |
Algebra, Combinatorics and Number Theory

Chen, Erdős, and Staton asked in 1996 how many edges are required in an n-vertex graph to…

Speaker: António Girão
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
FC1 031 and online |
Algebra, Combinatorics and Number Theory

Quasi-hereditary algebras are a class of finite-dimensional associative algebras that appear…

Speaker: Tiago Cruz
FC1 031 and online |
Algebra, Combinatorics and Number Theory

Quasigroupoids and weak Hopf quasigroups are non-associative generalizations of groupoids and…

Speaker: Ramón González Rodríguez
FC1 031 and online |
Algebra, Combinatorics and Number Theory

Polynomial expansion concerns the heuristic expectation that, for a typical polynomial P in n…

Speaker: Nuno Arala Santos

Past Seminars

FC1.031 |
Dynamical Systems

Dynamical systems generated by scalar reaction-diffusion equations enjoy special properties that…

Speaker: Carlos Rocha
Online Zoom meeting |
Semigroups, Automata and Languages

Just as groups are algebraic models of symmetry, inverse semigroups capture the notion of…

Speaker: P. A. Azeef Muhammed
FC1.005 |
Dynamical Systems

What is the expected number of iterates of a point needed for a plot of these iterates to…

Speaker: Mike Todd
Online Zoom meeting |
Semigroups, Automata and Languages

It is well-known that the subword complexity of an automatic sequence grows at most linearly,…

Speaker: Jakub Konieczny
Online seminar |
Algebra, Combinatorics and Number Theory

Given a group $G$ acting on a set $X$, an element $g$ of $G$ is called a derangement if it…

Speaker: Daniele Garzoni
Online Zoom meeting |
Semigroups, Automata and Languages

Since the seminal work of Nambooripad (among others), people…

Speaker: Xavier Mary
FC1 007 |
Algebra, Combinatorics and Number Theory

The length of a finite system of generators for a finite-dimensional algebra over a field is the…

Speaker: Alexander Guterman
FC1 .029 |
Geometry and Topology

In this talk, we will study a gauge-theoretic construction of (branched) complex projective …

Speaker: Pedro M. Silva
FC1 007 |
Algebra, Combinatorics and Number Theory

The simple positive energy representations for an affine vertex algebras associated to higher…

Speaker: Oscar Morales
FC1 007 |
Algebra, Combinatorics and Number Theory

In 1972, Kantor introduced the class of conservative algebras, which contains many other…

Speaker: Renato Fehlberg Júnior
FC1 0.29 |
Geometry and Topology

Mirror symmetry is a somewhat mysterious phenomenon that relates the geometry of two distinct…

Speaker: Goncalo Oliveira
FC1.031 |
Dynamical Systems

The variational principle states that the topological entropy of a compact dynamical system is…

Speaker: Reza Mohammadpour
Online Zoom meeting |
Semigroups, Automata and Languages

We introduce the notion of a crossed module over an inverse semigroup which generalizes…

Speaker: Mykola Khrypchenko
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory

I will present some results that were obtained in collaboration with Csaba Schneider (…

Speaker: Raimundo de Araújo Bastos Júnior
Online Zoom meeting |
Geometry and Topology

In this talk, I will discuss recent joint work with Alexeev-Engel-Schaffler that provides…

Speaker: Daniel Zachary Garza
FC1 007 |
Algebra, Combinatorics and Number Theory

Let $A$ be an associative algebra over a field $F$ of characteristic zero, $F\langle X \rangle$…

Speaker: Carla Rizzo
FC1 007 |
Algebra, Combinatorics and Number Theory

Given a group $G$ and a partial factor set $\sigma $ of $G,$ we introduce the twisted partial…

Speaker: Mikhailo Dokuchaev
Online Zoom meeting |
Geometry and Topology

I will explain how to express the space of almost complex structures J(M) on a…

Speaker: Gustavo Granja
FC1 0.31 and online |
Analysis

The recurrence coefficients of a generalised symmetric F…

Speaker: Ana Filipa Loureiro
FC1 007 |
Algebra, Combinatorics and Number Theory

The Monster group $M$ is the largest sporadic simple group. It is also the group of…

Speaker: Albert Gevorgyan