The concept of a rank function on an additive category with cokernels, or more generally, on one…
Seminars
Future and Ongoing Seminars
FC1 1.09 |
Geometry and Topology
Abstract: I will review the application of Hamiltonian flows in imaginary time to problems in…
Speaker: João Luís Pimentel Nunes
Past Seminars
FC1 007 |
Algebra, Combinatorics and Number Theory
In 1972, Kantor introduced the class of conservative algebras, which contains many other…
Speaker: Renato Fehlberg Júnior
FC1 0.29 |
Geometry and Topology
Mirror symmetry is a somewhat mysterious phenomenon that relates the geometry of two distinct…
Speaker: Goncalo Oliveira
FC1.031 |
Dynamical Systems
The variational principle states that the topological entropy of a compact dynamical system is…
Speaker: Reza Mohammadpour
Online Zoom meeting |
Semigroups, Automata and Languages
We introduce the notion of a crossed module over an inverse semigroup which generalizes…
Speaker: Mykola Khrypchenko
FC1 007 (and online) |
Algebra, Combinatorics and Number Theory
I will present some results that were obtained in collaboration with Csaba Schneider (…
Speaker: Raimundo de Araújo Bastos Júnior
Online Zoom meeting |
Geometry and Topology
In this talk, I will discuss recent joint work with Alexeev-Engel-Schaffler that provides…
Speaker: Daniel Zachary Garza
FC1 007 |
Algebra, Combinatorics and Number Theory
Let $A$ be an associative algebra over a field $F$ of characteristic zero, $F\langle X \rangle$…
Speaker: Carla Rizzo
FC1 007 |
Algebra, Combinatorics and Number Theory
Given a group $G$ and a partial factor set $\sigma $ of $G,$ we introduce the twisted partial…
Speaker: Mikhailo Dokuchaev
Online Zoom meeting |
Geometry and Topology
I will explain how to express the space of almost complex structures J(M) on a…
Speaker: Gustavo Granja
FC1 0.31 and online |
Analysis
The recurrence coefficients of a generalised symmetric F…
Speaker: Ana Filipa Loureiro
FC1 007 |
Algebra, Combinatorics and Number Theory
The Monster group $M$ is the largest sporadic simple group. It is also the group of…
Speaker: Albert Gevorgyan
FC1.031 |
Dynamical Systems
This presentation is divided into three parts where we analyze three different…
Speaker: João Carvalho
FC1 004, (Math Bldg., FCUP) |
Semigroups, Automata and Languages
Finite automata are classical machines that recognise regular languages. However, many other…
Speaker: Luca Prigioniero
Online |
Geometry and Topology
A twisted rational map over an algebraically closed and complete non-…
Speaker: Shengyuan Zhao
FC1.031 |
Dynamical Systems
Apresentaremos o estado da arte sobre o estudo da conjectura da estabilidade para fluxos…
Speaker: Rafael Ruggiero
FC1.031 |
Dynamical Systems
The study of hyperbolic structures (uniform and nonuniform ones)
is a central subject in…
Speaker: Luciana Silva Salgado
Online Zoom meeting |
Geometry and Topology
We consider germs of holomorphic vector fields at the origin in dimension 3…
Speaker: Fernando Peirera Paulucio Reis
Online Zoom meeting |
Semigroups, Automata and Languages
Motivated by the recent surge of interest in the concept of injective C*…
Speaker: Ruy Exel
Online Zoom meeting |
Semigroups, Automata and Languages
This presentation will focus on extending the theory of formations of groups to inverse…
Speaker: Isabel J. Nobre
Online seminar |
Algebra, Combinatorics and Number Theory
A Kirkman Triple System (KTS) is called $m$-pyramidal if there exists a subgroup $G$ of its…
Speaker: Martino Garonzi