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Seminars

Future and Ongoing Seminars

FC1 031 and online |
Algebra, Combinatorics and Number Theory

In this talk I will give a brief introduction to the study of conditional indepedence (CI) and…

Speaker: Eliana Gélvez
Room FC1 0.07 |
Geometry and Topology

The moduli spaces of polygons in $\mathbb{R}^3$, with prescribed side lengths, are naturally…

Speaker: Carlos Florentino
Room FC1 0.07 |
Geometry and Topology

Cartan geometries are structures on manifolds which are infinitesimally modelled on homogeneous…

Speaker: João Nuno Mestre
FC1 007 and Online |
Algebra, Combinatorics and Number Theory

The main goal of this talk is to illustrate the role of quaternions in number theory.

Speaker: Adriana Cardoso

Past Seminars

Online Zoom meeting |
Semigroups, Automata and Languages

We prove a noncommutative generalisation

Speaker: Jean-Eric Pin
Online Zoom meeting |
Semigroups, Automata and Languages

We consider two-variable first-order logic $\mathop{\mathrm{FO}}^2$

Speaker: Manfred Kufleitner
Online Zoom meeting |
Semigroups, Automata and Languages

It is a consequence of Higman's embedding theorem that the additive group $\mathbb{Q}$ of…

Speaker: Francesco Matucci
Online Zoom meeting |
Semigroups, Automata and Languages

The starting point for the ideas in this talk is that the Plactic monoid admits several…

Speaker: António Malheiro
Online Zoom meeting |
Semigroups, Automata and Languages

Since the 1980s, inverse semigroups and groupoids have been important tools to study $C^*$-…

Speaker: Gilles Gonçalves de Castro
Online Zoom meeting |
Semigroups, Automata and Languages

The problem of computing the abelian kernel of a finite semigroup was first solved by Delgado…

Speaker: Vicent Pérez Calabuig
FC1 0.31 |
Algebra, Combinatorics and Number Theory

In this series of three lectures, we will discuss two important and relatively new methods…

Speaker: António Girão
Online Zoom meeting |
Semigroups, Automata and Languages

Plactic monoids are infinite, finitely generated monoids arising from a natural combinatorial…

Speaker: Mark Kambites
FC1 0.31 |
Algebra, Combinatorics and Number Theory

In this series of three lectures, we will discuss two important and relatively new methods…

Speaker: António Girão
Online Zoom meeting |
Algebra and Geometry

Let C be a decomposable plane curve over an algebraically closed field k of characteristic 0.

Speaker: Angela Tabiri
Online Zoom meeting |
Semigroups, Automata and Languages

Automata pose a simple way to describe groups and semigroups with sometimes surprisingly complex…

Speaker: Jan Philipp Wächter
Online Zoom meeting |
Semigroups, Automata and Languages

In this talk, we consider the class of finite right restriction Ehresmann semigroups whose…

Speaker: Itamar Stein
Online Zoom meeting |
Semigroups, Automata and Languages

In our talk we will review some of the combinatorial methods in…

Speaker: Tatiana Jajcayova
Online Zoom meeting |
Semigroups, Automata and Languages

A self-similar group is a group $G$ acting on the Cayley graph of a finitely generated free…

Speaker: Benjamin Steinberg
Online Zoom meeting |
Semigroups, Automata and Languages

Free profinite semigroups are completions of free semigroups, and for that reason their elements…

Speaker: Alfredo Costa
Online Zoom meeting |
Semigroups, Automata and Languages

The ubiquitous plactic monoid, also known as the monoid of Young tableaux, has deep connections…

Speaker: Duarte Chambel Ribeiro
Online Zoom meeting |
Semigroups, Automata and Languages

The aim of this talk is to explain how model theory can be fruitfully applied to the study of…

Speaker: Samuel J. van Gool
Room FC1 030, DMat-FCUP |
Semigroups, Automata and Languages

Two groups are called commensurable if they have isomorphic subgroups of finite index.

Speaker: Zakharov Alexander
Room 1.09 |
Geometry and Topology

Hitchin's connection, originally constructed using techniques of Kähler geometry, is a flat…

Speaker: Thomas Baier
Room FC1.108 |
CMUP Informal PHD Seminar

We will emphasize how to approach dynamical systems from a probabilistic perspective (or…

Speaker: Lucas Amorim