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Seminars

Future and Ongoing Seminars

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
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 |
Semigroups, Automata and Languages

Given a set of generators of a finite semigroup, a natural way to show that a…

Speaker: Andrew Ryzhikov

Past Seminars

FC1 030 |
Algebra, Combinatorics and Number Theory

In this talk, an overview will be presented about hom-algebra structures, with focus on…

Speaker: Sergei Silvestrov
Online Zoom meeting |
Semigroups, Automata and Languages

In this talk I will present a certain hierarchy of diagrammatic monoids which can be unified by…

Speaker: Volodymyr Mazorchuk
FC1 030 |
Algebra, Combinatorics and Number Theory

Hypercubes are arguably one of the most fundamental and most studied objects in Combinatorics.…

Speaker: António Girão
Room 1.20 |
Geometry and Topology

Compact Hyperkaeler manifolds play a central role in complex algebraic geometry, as they arise…

Speaker: Valeria Bertini
Room M030, DMat-FCUP |
Computational Mathematics

Abstract

Speaker: Maria Bras-Amorós
Online Zoom meeting |
Semigroups, Automata and Languages

The study of the subgroup fixed by an automorphism of a free group started with the work of…

Speaker: André Carvalho
Online Zoom meeting |
Semigroups, Automata and Languages

Given a finite group $G$, the generating graph $\Gamma(G)$ of $G$ has as vertices the (…

Speaker: Claude Marion
Online seminar |
Algebra, Combinatorics and Number Theory

In dimension 2, a domino is a $2\times 1$ rectangle. Domino tilings of quadriculated regions…

Speaker: Nicolau Saldanha
1.09 |
Geometry and Topology

In 1975 Narasimhan and Ramanan studied the action of a line bundle $L$ of finite order on the…

Speaker: Guillermo Barajas Ayuso
Online Zoom meeting |
Semigroups, Automata and Languages

Following a correspondence due to Almeida, every uniformly recurrent language determines a…

Speaker: Herman Goulet-Ouellet
online |
Geometry and Topology

Abstract. In this talk we will focus on semicomplete Halphen vector fields.

Speaker: Ahmed Elshafei
Online Zoom meeting |
Semigroups, Automata and Languages

In 1985, Bucher, Ehrenfeucht and Haussler studied derivation relations associated with a given…

Speaker: Ondřej Klíma
Online Zoom meeting |
Semigroups, Automata and Languages

Let $I_n$ be the symmetric inverse semigroup on $…

Speaker: Georg Klein
Online Zoom meeting |
Semigroups, Automata and Languages

Finite rank plactic monoids are infinite monoids arising from a natural combinatorial…

Speaker: Marianne Johnson
Online Zoom meeting |
Semigroups, Automata and Languages

The class of regular languages is the smallest class of languages containing the finite…

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

The variety (of finite semigroups) DAb is the class of finite semigroups whose regular 𝒟-classes…

Speaker: Jan Philipp Wächter
FC1.031 |
Dynamical Systems

In 2017, Baraviera and Duarte extended a classical theorem from Le Page.

Speaker: Marcelo Durães
Online Zoom meeting |
Semigroups, Automata and Languages

The Finite Index Basis Theorem is an elegant result connecting bifix codes, symbolic dynamical…

Speaker: Alfredo Costa
FC1.031 |
Dynamical Systems

Impulsive Dynamical Systems (IDS) can be seen as suitable mathematical models of real…

Speaker: Jaqueline Siqueira
FC1.004 |
CMUP Informal PHD Seminar

Let $Q(x,y)=ax^{2}+bxy+cy^{2}$ be a real and positive definite quadratic form. The classical…

Speaker: Pedro Ribeiro