The Gruenberg-Kegel graph of a group is defined as the graph whose vertices are the primes that…
Seminars
Future and Ongoing Seminars
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
Speaker: Diego Lucas Garcia
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
Chen, Erdős, and Staton asked in 1996 how many edges are required in an n-vertex graph to…
Speaker: António Girão
FC1 031 and online |
Algebra, Combinatorics and Number Theory
This has been an open question for more than 70 years. I'll review what is known, including some…
Speaker: Ken Brown
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Quasi-hereditary algebras are a class of finite-dimensional associative algebras that appear…
Speaker: Tiago Cruz
FC1 1.09 |
Geometry and Topology
Abstract: I will review the application of Hamiltonian flows in imaginary time…
Speaker: João Luís Pimentel Nunes
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Quasigroupoids and weak Hopf quasigroups are non-associative generalizations of groupoids and…
Speaker: Ramón González Rodríguez
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Polynomial expansion concerns the heuristic expectation that, for a typical polynomial P in n…
Speaker: Nuno Arala Santos
Past Seminars
1.26, Edifício dos Departamentos de Matemática |
Other
Um hipermapa orientado regular e um terno ordenado composto por um grupo finito, designado grupo de
Speaker: Maria Elisa Carrancho Fernandes (Universidade de Aveiro)
Anfiteatro 0.05 |
Dynamical Systems
Equilibrium states for dynamical systems III: equilibrium states for multimodal maps of the interval
I will show how Sarig's theory and our theory of inducing schemes fits together to produce equilibri
Speaker: Mike Todd
0.06, Edifício dos Departamentos de Matemática |
Other
The determinantal formula gives an expression of Specht modules by permutational modules in the Grot
Speaker: Ivan Yudin (Centro de Matemática da Universidade de Coimbra)
Anfiteatro 0.05 |
Dynamical Systems
I will introduce the theory of equilibrium states for infinite state Markov shifts. This will later
Speaker: Mike Todd
sala 0.07 |
Geometry and Topology
We study the generalized Hamiltonian dynamics of an implicit Hamiltonian system considered as a Lagr
Speaker: Prof. S. Janeczko
Institute of Mathematics of the Polish Academy of Sciences
and
Faculty of Mathematics and Information Sciences
Warsaw University of Technology
Institute of Mathematics of the Polish Academy of Sciences
and
Faculty of Mathematics and Information Sciences
Warsaw University of Technology
Anfiteatro 0.03 do Edifício dos Departamentos de Matemática |
Other
Roughly speaking, linear preserver problems consist on the characterization of linear maps between o
Speaker: María Burgos (Universidad de Granada)
Anfiteatro 0.05 |
Dynamical Systems
I will motivate, define and show how to construct equilibrium states/measures for dynamical systems.
Speaker: Mike Todd
Anfiteatro 0.07 do Edifício dos Departamentos de Matemática |
Other
We shall investigate some properties of Rad-supplemented modules and in general &tau-…
Speaker: Engin Büyükasik (Izmir Institute of Technology)
Anfiteatro 0.07 do Edifício dos Departamentos de Matemática |
Other
A abundância de dados moleculares tornam a filogenetica -- reconstrução e análise de árvores (e
Speaker: Maria Leonor Nogueira Coelho Moreira (Universidade do Porto)
sala 0.07 |
Geometry and Topology
Nekrasov has shown how the low-energy behaviour of certain super-symmetric quantum field theories ca
Speaker: Johan Martens, University of Toronto
Anfiteatro 0.04 do Edifício dos Departamentos de Matemática |
Other
The aim of this talk is to present some links between the combinatorics involved in Morita equivalen
Speaker: Lionel Richard (University of Edinburgh)
Anfiteatro 0.05 - Edifício das Matemáticas |
Dynamical Systems
Apresentaremos o metodo proposto por Ilyashenko para contruir medidas ergódicas com suporte não tr
Speaker: Lorenzo J. Díaz (PUC-Rio de Janeiro)
Dep.Matematica Pura, R.Campo Alegre 687, sala 0.04 |
Other
Yang-Mills algebras have been defined and studied by A. Connes and M. Dubois-Violette. These algebra
Speaker: Andrea Solotar (Universidad de Buenos Aires – Argentina)
Anfiteatro 0.05 - Edifício das Matemáticas |
Dynamical Systems
Benedicks and Misiurewicz showed that given a Misiurewicz interval map $f$, there exists an absolute
Speaker: Neil Dobbs (IMPAN, Warsaw, Poland)
Anfiteatro 0.04 (DMP - FCUP) |
Semigroups, Automata and Languages
Uma extensão por ideais de um semigrupo S sobre um semigrupo Q com 0 e um semigrupo T contendo S co
Speaker: Luís Oliveira
Anfiteatro 0.04 (DMP - FCUP) |
Semigroups, Automata and Languages
Um semigrupo numerico e um submonóide dos inteiros não negativos, com a adição. Depois de dar to
Speaker: Manuel Delgado
Sala 0.04 |
Geometry and Topology
A model of relationship between the production and ecological carrying capacity of shellfish culture
Speaker: Alexey Davydov
Sala 0.05 |
Geometry and Topology
Complex algebraic surfaces of general type with $p_g=q=1$ are still not completely understood. Until
Speaker: Carlos Rito (UTAD)
sala 0.05 |
Geometry and Topology
Consider a smooth 2-dimensional surface $S$ with coordinates $(t,x)$ and pseudo-Riemann metric, i.e.
Speaker: Alexey Remizov (CMUP)
sala 0.05 |
Geometry and Topology
Every complex projective algebraic surface S satises the inequality
$9\chi(\mathcal{O}_S) \geq c_1^2
Speaker: Margarida Mendes Lopes (IST)