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
Room M031. Coffee is served after the talk (15h30-16h00). |
Dynamical Systems
We consider discrete time dynamical systems and show the link between Hitting Time Statistics (the d
Speaker: Ana Cristina Freitas
sala 0.03 |
Geometry and Topology
Rigidity of Lagrangian intersections play a fundamental role in symplectic geometry and topology. In
Speaker: Miguel Abreu (IST)
Sala M031. Será servido cafe depois da palestra (15h30-16h00). |
Geometry and Topology
Uma equação diferencial complexa e localmente dada por um campo de vectores da forma F(x,y)d/dx+G(
Speaker: Helena Reis (FEP & CMUP)
sala 0.03 |
Geometry and Topology
Speaker: Luca Scala (PUC-Rio)
Room M030 of the Mathematics Department, FCUP |
Semigroups, Automata and Languages
My aim is to talk about some of my work concerning the development of GAP packages. Particular empha
Speaker: Manuel Delgado (CMUP / DMat-FCUP)
Room M030 of the Mathematics Department, FCUP |
Semigroups, Automata and Languages
Descriptional complexity studies the measures of complexity of languages and operations. These studi
Speaker: Eva Maia (CMUP / DCC-FCUP)
Sala M031. Será servido cafe depois da palestra (15h30-16h00). |
Dynamical Systems
em anexo
Speaker: Fernando Moreira (CMUP)
Room M031. Coffee is served after the talk (15h30-16h00). |
Dynamical Systems
We consider a partially hyperbolic set K on a Riemannian manifold M whose tangent space splits as T_
Speaker: Li Xin (FCUP, CMUP)
Room 0.07, Mathematics building, FCUP |
Algebra, Combinatorics and Number Theory
Ring epimorphisms are important from a representation-theoretical point of view as they provide a wa
Speaker: Jorge Vitória (Universitat Stuttgart)
Room M031. Coffee is served after the talk (15h30-16h00). |
Dynamical Systems
A conjecture of Victor Ivrii (1980) says that in every billiard with smooth boundary the set of peri
Speaker: Alexey Glutsyuk (ENS-Lyon)
sala 0.31 |
Geometry and Topology
A conjecture of Victor Ivrii (1980) says that in every billiard with smooth boundary the set of peri
Speaker: Alexey Glutsyuk (ENS-Lyon)
Room 0.07, Mathematics building, FCUP |
Algebra, Combinatorics and Number Theory
We consider the multiplication and differentiation operators x and d/dx, which generate the Weyl alg
Speaker: Samuel Lopes (Universidade do Porto/CMUP)
Room 0.06, Mathematics building, FCUP |
Algebra, Combinatorics and Number Theory
It is easy to check that the sum of any family of two-sided nil ideals of an associative ring is a n
Speaker: Edmund R.Puczylowski (Institute of Mathematics, University of Warsaw)
sala 0.31 |
Geometry and Topology
I will present some recent results on symplectic invariants concerning the possibility of embedding
Speaker: Jose Basto Gonçalves
Room M031. Coffee is served after the talk (15h30-16h00). |
Dynamical Systems
I will present some recent results on symplectic invariants concerning the possibility of embedding
Speaker: Jose Basto Gonçalves
Room 0.06, Mathematics building, FCUP |
Algebra, Combinatorics and Number Theory
We consider rings over which the injective hulls of simple modules are locally Artinian. We will giv
Speaker: Can Hatipoglu (University of Porto)
Geometry and Topology
Complex algebraic surfaces of general type with geometric genus $p_g=0$ have been studied by several
Speaker: Carlos Rito
Room M005 of the Mathematics Department, FCUP |
Semigroups, Automata and Languages
In this talk I will give an overview on the theory of self-similar groups. These groups act by autom
Speaker: Daniele D'Angeli (UTAD)
Room M031. Coffee is served after the talk (15h30-16h00). |
Dynamical Systems
We begin by a general overview of some long standing results on the characteriza- tion of global att
Speaker: Carlos Rocha (IST - Instituto Superior Tecnico)
Room 0.06, Mathematics building, FCUP |
Algebra, Combinatorics and Number Theory
The depth of a subalgebra B in an algebra A is a number computed by considering tensor powers of mod
Speaker: Christopher Young (U.Porto)