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Seminars

Past Seminars

Online seminar |
Algebra, Combinatorics and Number Theory

This talk concerns numerical semigroups, i.e. cofinite submonoids $S$ of $\mathbb{N…

Speaker: Shalom Eliahou
Online Zoom meeting |
Semigroups, Automata and Languages

In 1875, Smith computed the determinant of the $n\times n$

Speaker: Benjamin Steinberg
Online seminar |
Algebra, Combinatorics and Number Theory

Let $G$ be a subgroup of $S_n$. What can be said on the number of conjugacy classes of $G$, in…

Speaker: Daniele Garzoni
Room TBD (FC1 Building) |
CMUP Informal PHD Seminar

Point vortices are singular solutions of the 2-dimensional incompressible Navier-Stokes…

Speaker: Gil Marques
Online seminar |

Two of the most important and fundamental results in the representation theory of a reductive…

Speaker: Jonathan Gruber
Online Zoom meeting |
Semigroups, Automata and Languages

The study of algebras of partial functions is an active area of research that investigates…

Speaker: Célia Borlido
Online seminar |
Algebra, Combinatorics and Number Theory

A celebrated theorem of B. H.

Speaker: Cristina Acciarri
FC1.029 |
CMUP Informal PHD Seminar

Coarse median spaces and groups were introduced by Bowditch in 2013.

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

If $W$ is a set of words in the alphabet $\mathfrak…

Speaker: Olga B. Sapir
FC1.006 |
CMUP Informal PHD Seminar

In this talk we will discuss some problems on endomorphisms of groups with special focus…

Speaker: André Carvalho
Online seminar |
Algebra, Combinatorics and Number Theory

Using graphs as a tool to encode properties of groups is a well established approach to many…

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

A numerical semigroup $S$ is a cofinite

Speaker: Manuel Delgado
Online seminar |
Algebra, Combinatorics and Number Theory

Let G be a permutation group acting on a finite set Ω. A subset B of Ω is…

Speaker: Mariapia Moscatiello
Online Zoom meeting |
Semigroups, Automata and Languages

A language of finite words is star-free when it can be built from letters using Boolean…

Speaker: Marc Zeitoun
Online seminar |
Algebra, Combinatorics and Number Theory

A Steiner triple system STS(v) is a set of triples of {1, 2, . . . , v} such that every pair of…

Speaker: Martino Garonzi
Online seminar |
Algebra, Combinatorics and Number Theory

If G is a finite group and k a field of characteristic p, the group algebra kG can be written…

Speaker: John MacQuarrie
Online Zoom meeting |
Semigroups, Automata and Languages

We consider the rational subset membership problem for Baumslag-Solitar groups.

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

Boolean inverse monoids and $MV$-algebras are both supposed to be generalizations of Boolean…

Speaker: Mark Lawson
Online Zoom meeting |
Semigroups, Automata and Languages

If $R$ is a finite commutative ring, then the affine monoid of…

Speaker: M. Hossein Shahzamanian
Online Zoom meeting |
Algebra, Combinatorics and Number Theory

Building on the classification of modules for algebraic groups with finitely many orbits on…

Speaker: Aluna Rizzoli