A numerical semigroup $S$ is a…

Let *G* be a permutation group acting on a finite set Ω.

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

A Steiner triple system STS(v) is a set of triples of {1, 2…

**Date.** September 24, 15h00 (UTC/…

**Date.** September 24, …

If G is a finite group and k a field of characteristic p, the group…

We consider the rational subset membership problem for Baumslag-…

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

If $R$ is a finite commutative ring…

Building on the classification of modules for algebraic groups with…

We consider a natural generalization of the concept of order of a (…

A central polynomial of an algebra *A* is a polynomial *f…*

Classical Morita theory was first developed for rings with identity…

Normality has been introduced by É. Borel…

Riemann surfaces are the simplest spaces to which…

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

We provide a general framework for computing mixing times of…

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

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