Seminars

We consider a natural generalization of the concept of order of a (torsion) element: the order…

A central polynomial of an algebra A is a polynomial f in non-commutative…

Classical Morita theory was first developed for rings with identity by Kiiti Morita.

Normality has been introduced by É. Borel more than one hundred…

Riemann surfaces are the simplest spaces to which one can extend the tech…

Profinite groups in which the centralizer of any non-identity element  is abelian (i.e.,…

We provide a general framework for computing mixing times of finite Markov chains when its…

Given an extension L/K of number fields, we say that the Hasse norm principle (HNP) holds if…

The multiplicative semigroup $M_n(F)$ of $n\times n$ matrices over a field $F$ is well…

This talk is about some special type of profinite presentations called ω-presentations…

A variety of algebras is said to be finitely based if it has a finite basis of its identities. A…

An inverse monoid $M$ is $F$-inverse…

We will explain how Kan extensions give a concise construction of the nerve of an internal…

In this talk, I will discuss extensions of semigroups, which are defined using Eilenberg-…

We will consider the computational complexity of decision problems in which we are given a set…

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

The subgroup membership problem for a group $G$ asks whether a given group element $g$ from $G$…

We discuss expansions of monoids in the class of two-sided restriction monoids.

Sarcasm aside, in this talk we are going to take a look into a well-established theory of…

The twisted Brauer monoid $\mathcal{W}_n$ is the monoid generated by $s_1,\dots,s_{n-1},h_1,\…