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 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 1.22 |
Geometry and Topology
The concept of curvature ellipse at a point of a surface immersed in 4-space has been known since a
Speaker: M. Carmen Romero Fuster
Room M031 |
Dynamical Systems
We discuss a simple model formed by two iterated maps of the interval, m and r: The map r, named reg
Speaker: Carlos Ramos
Room 1.22 - DM - FCUP |
Geometry and Topology
Holomorphic chains on a Riemann surface are sequences of holomorphic bundles, connected by holomorph
Speaker: Peter Gothen
Room 1.22 |
Geometry and Topology
I will talk about Nijenhuis deformations of Lie-infinity algebras, a notion that unifies several Nij
Speaker: Joana da Costa
Room FC1.006, DMat-FCUP |
Semigroups, Automata and Languages
We consider the embedding problem in coding theory: given an independence (a code-related property)
Speaker: Stavros Konstantinidis
Room M004, Department of Mathematics, University of Porto |
Research Seminar Program (UC|UP MATH PhD program)
Monads, or triples, and the algebras they define, proved to be very important in several fields of m
Speaker: Pier Giorgio Basile
Geometry and Topology
We consider the Teichmueller space of hyperbolic and convex projective
structures on a closed surfac
Speaker: Ferry Kwakkel
Amphitheater 2, DCC-FCUP (FC6 029) |
Semigroups, Automata and Languages
Real-time embedded systems are becoming more complex and open, making their development process extr
Speaker: David Pereira
Room 005 |
Dynamical Systems
We will report on some recent results concerning the topological entropy and dynamics of continuous
Speaker: Paulo Varandas
Dynamical Systems
In these talks we consider dynamics near heteroclinic cycles between two hyperbolic equilibria with
Speaker: Jurgen Knobloch
Dynamical Systems
In these talks we consider dynamics near heteroclinic cycles between two hyperbolic equilibria with
Speaker: Jurgen Knobloch
Room 0.06 |
Geometry and Topology
Chad Schoen (2007) used deformations to construct a family of smooth complex algebraic surfaces S w
Speaker: Carlos Rito
Amphitheater 2, DCC-FCUP |
Semigroups, Automata and Languages
In this talk, we will see an overview of classical results about temporal logics (LTL, CTL, CTL*,…
Speaker: François Laroussinie
Dynamical Systems
We study flows on polytopes whose dynamics leave all faces of the polytope invariant. We assume th
Speaker: Pedro Duarte
Dynamical Systems
We consider discrete time dynamical systems and show the linking between Extreme Value Laws and Hitt
Speaker: Ana Cristina Freitas
Room 0.06 |
Geometry and Topology
In this talk, we discuss the problem of classifying the closed and transitive homeomorphism groups
Speaker: Ferry Kwakkel
Room FC1.005, DMat-FCUP |
Semigroups, Automata and Languages
There are two traditional approaches to the free inverse semigroup. Scheiblich’s approach as pairs
Speaker: Luís Oliveira
Dynamical Systems
In the study of pattern formation in symmetric physical systems a 3-dimensional structure in thin do
Speaker: Juliane Oliveira
Dynamical Systems
Considere-se um polígono convexo. Dado um ponto x no complementar do polígono existe uma única
Speaker: José Pedro Gaivão
Room 5.5 - Department of Mathematics - University of Coimbra |
Research Seminar Program (UC|UP MATH PhD program)
In this talk, we will study some aspects of the categories of topological semi-abelian algebras. In
Speaker: Mathieu Duckerts-Antoine