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Seminars

Online Zoom meeting |
Semigroups, Automata and Languages

Classical Morita theory was first developed for rings with identity…

Speaker: Valdis Laan
Online Zoom meeting |
Semigroups, Automata and Languages

Normality has been introduced by É. Borel…

Speaker: Olivier Carton
Online Zoom meeting |
CMUP Informal PHD Seminar

Riemann surfaces are the simplest spaces to which…

Speaker: Pedro Miguel Silva
Online Zoom meeting |
Algebra, Combinatorics and Number Theory

Profinite groups in which the centralizer of any non-identity…

Speaker: Theo A. D. Zapata
Online Zoom meeting |
Semigroups, Automata and Languages

We provide a general framework for computing mixing times of…

Speaker: Anne Schilling
Online Zoom meeting |
Algebra, Combinatorics and Number Theory

Given an extension L/K of number fields, we say that the Hasse norm…

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

The multiplicative semigroup $M_n(F)$ of $n\times n$ matrices over…

Speaker: Victoria Gould
Online Zoom meeting |
CMUP Informal PHD Seminar

This talk is about some special type of profinite presentations…

Speaker: Herman Goulet Ouellet
Online Zoom meeting |
Semigroups, Automata and Languages

A variety of algebras is said to be finitely based if it has a…

Speaker: Sergey Gusev
Online Zoom meeting |
Semigroups, Automata and Languages

An inverse monoid $M$ is

Speaker: Karl Auinger
Online Zoom meeting |
CMUP Informal PHD Seminar

We will explain how Kan extensions give a concise…

Speaker: Rui Prezado
Online Zoom meeting |
Semigroups, Automata and Languages

In this talk, I will discuss extensions of semigroups, which…

Speaker: Mikołaj Bojańczyk
Online Zoom meeting |
Semigroups, Automata and Languages

We will consider the computational complexity of decision problems…

Speaker: Trevor Jack
Online Zoom meeting |
CMUP Informal PHD Seminar

The main goal of this talk is to present a geometric version…

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

The subgroup membership problem for a group $G$ asks whether a…

Speaker: Markus Lohrey
Online Zoom meeting |
Semigroups, Automata and Languages

We discuss expansions of monoids in the class of two-sided…

Speaker: Ganna Kudryavtseva
Online Zoom meeting |
CMUP Informal PHD Seminar

Sarcasm aside, in this talk we are going to take a look into…

Speaker: Raquel Couto
Online Zoom meeting |
Semigroups, Automata and Languages

The twisted Brauer monoid $\mathcal{W}_n$ is the monoid generated…

Speaker: Mikhail V. Volkov
Online Zoom meeting |
Semigroups, Automata and Languages

Given a group defined by a presentation with a single…

Speaker: Robert Gray
Online Zoom meeting |
Semigroups, Automata and Languages

The study of Leavitt path algebras developed from

Speaker: John Meakin