Polynomial expansion concerns the heuristic expectation that, for a typical polynomial P in n…
Seminars
Future and Ongoing Seminars
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Speaker: Nuno Arala Santos
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Cantor famously used two versions of Diagonalization for his fundamental results in set theory.…
Speaker: Reinhard Kahle
FC1.031 |
Dynamical Systems
This talk concerns entropy-dimensional concepts recently developed in order…
Speaker: Gustavo Pessil
FC1.031 |
Dynamical Systems
We introduce a class of linear bounded invertible operators on Banach spaces, called shift…
Speaker: Udayan B. Darji
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Kruskal’s uniqueness theorem gives a simple criterion ensuring that a 3-way tensor admits a…
Speaker: Alexander Taveira Blomenhofer
Past Seminars
Online Zoom meeting |
Semigroups, Automata and Languages
We consider a natural generalization of the concept of order of a (torsion) element: the order…
Speaker: Enric Ventura
Online Zoom meeting |
Algebra, Combinatorics and Number Theory
A central polynomial of an algebra A is a polynomial f in non-commutative…
Speaker: Carla Rizzo
Online Zoom meeting |
Semigroups, Automata and Languages
Classical Morita theory was first developed for rings with identity by Kiiti Morita.
Speaker: Valdis Laan
Online Zoom meeting |
Semigroups, Automata and Languages
Normality has been introduced by É. Borel more than one hundred…
Speaker: Olivier Carton
Online Zoom meeting |
CMUP Informal PHD Seminar
Riemann surfaces are the simplest spaces to which one can extend the tech…
Speaker: Pedro Miguel Silva
Online Zoom meeting |
Algebra, Combinatorics and Number Theory
Profinite groups in which the centralizer of any non-identity element is abelian (i.e.,…
Speaker: Theo A. D. Zapata
Online Zoom meeting |
Semigroups, Automata and Languages
We provide a general framework for computing mixing times of finite Markov chains when its…
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 principle (HNP) holds if…
Speaker: André Macedo
Online Zoom meeting |
Semigroups, Automata and Languages
The multiplicative semigroup $M_n(F)$ of $n\times n$ matrices over a field $F$ is well…
Speaker: Victoria Gould
Online Zoom meeting |
CMUP Informal PHD Seminar
This talk is about some special type of profinite presentations called ω-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 finite basis of its identities. A…
Speaker: Sergey Gusev
Online Zoom meeting |
Semigroups, Automata and Languages
An inverse monoid $M$ is $F$-inverse…
Speaker: Karl Auinger
Online Zoom meeting |
CMUP Informal PHD Seminar
We will explain how Kan extensions give a concise construction of the nerve of an internal…
Speaker: Rui Prezado
Online Zoom meeting |
Semigroups, Automata and Languages
In this talk, I will discuss extensions of semigroups, which are defined using Eilenberg-…
Speaker: Mikołaj Bojańczyk
Online Zoom meeting |
Semigroups, Automata and Languages
We will consider the computational complexity of decision problems in which we are given a set…
Speaker: Trevor Jack
Online Zoom meeting |
CMUP Informal PHD Seminar
The main goal of this talk is to present a geometric version of the bounded cancellation…
Speaker: André Carvalho
Online Zoom meeting |
Semigroups, Automata and Languages
The subgroup membership problem for a group $G$ asks whether a given group element $g$ from $G$…
Speaker: Markus Lohrey
Online Zoom meeting |
Semigroups, Automata and Languages
We discuss expansions of monoids in the class of two-sided restriction monoids.
Speaker: Ganna Kudryavtseva
Online Zoom meeting |
CMUP Informal PHD Seminar
Sarcasm aside, in this talk we are going to take a look into a well-established theory of…
Speaker: Raquel Couto
Online Zoom meeting |
Semigroups, Automata and Languages
The twisted Brauer monoid $\mathcal{W}_n$ is the monoid generated by $s_1,\dots,s_{n-1},h_1,\…
Speaker: Mikhail V. Volkov