Chen, Erdős, and Staton asked in 1996 how many edges are required in an n-vertex graph to…
Seminars
Future and Ongoing Seminars
FC1 007 and Online |
Algebra, Combinatorics and Number Theory
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 007 and Online |
Algebra, Combinatorics and Number Theory
The Hasse principle is the idea that a Diophantine equation over the rational numbers should…
Speaker: Nuno Freitas
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
Online Zoom meeting |
Geometry and Topology
Any Poisson bracket on a differentiable manifold can be written locally as the sum of two…
Speaker: Jorge Vitório Pereira
Online Zoom meeting |
Semigroups, Automata and Languages
In his paper from 2012, Nicolas Thiéry gives a formula for…
Speaker: Balthazar Charles
Seminário online |
Algebra, Combinatorics and Number Theory
Vamos considerar a conectividade de coberturas por dominós usando movimentos locais.
Speaker: Raphael de Marreiros
Room FC1.031, Mathematics Department, FCUP |
Algebra, Combinatorics and Number Theory
Speaker: Yiqiang Zhou
Online Zoom meeting |
Geometry and Topology
The tunneling effect predicted by B.Josephson (Nobel Prize, 1973) concerns the Josephson…
Speaker: Alexey Glutsyuk
FC1 0.31 |
Geometry and Topology
A tangle T is a pair formed by a ball and collection of properly embedded disjoint arcs in B.…
Speaker: João Nogueira
Online Zoom meeting |
Semigroups, Automata and Languages
A ring $R$ is called Dedekind finite (or directly finite) if it…
Speaker: Benjamin Steinberg
Room FC1.031, Mathematics Department, FCUP |
Algebra, Combinatorics and Number Theory
We aim to study Morita theory for tensor triangulated categories.
Speaker: Yuying Xu
FC1 0.31 |
Geometry and Topology
We are interested in equivariant embeddings of homogeneous spaces. Given the standard action…
Speaker: Arame Diaw
FC1 0.31 |
Geometry and Topology
Sasaki manifolds are the odd dimensional analogues of Kähler manifolds. In this talk, I will…
Speaker: Pedram Hekmati
CMUP, FCUP |
Site do seminário: https://www.mat.uc.pt/~pgsfop/index.html
Speaker: Claude Brezinski, Pascal Maroni e Michela Redivo-Zaglia
Department of Mathematics of Faculty of Sciences of University of Porto |
Live streamed at https://fc-up…
Speaker: Kenier Castillo, Semyon Yakubovich, Claude Brezinski, Pascal Maroni e Michela Redivo-Zaglia
FC1 0.31 |
Geometry and Topology
On a symplectic manifold $M$ with a hamiltonian action by a group $K$, it is natural to perform…
Speaker: Thomas Baier
FC1 0.31 |
Geometry and Topology
Speaker: João Nuno Mestre
Online Zoom meeting |
Semigroups, Automata and Languages
Endowed with the operation of setwise multiplication induced by a multiplicatively written…
Speaker: Salvatore Tringali
FC1 0.31 |
Geometry and Topology
After reviewing the formalism of Simpson's shapes for the non-abelian Hodge theory associated to…
Speaker: Emilio Franco
FC1 0.31 |
Geometry and Topology
In a work in progress with Gabriel …
Speaker: Frank Loray
Room FC6029 (CS Bldg., FCUP) and Online |
Semigroups, Automata and Languages
Weighted automata were designed by M.-P. Schützenberger to recognize languages beyond regular…
Speaker: Sylvain Lombardy
Room FC6029 (CS Bldg., FCUP) and Online |
Semigroups, Automata and Languages
The topic of this talk is the transformation of rational expressions into finite automata, a…
Speaker: Jacques Sakarovitch
Online Zoom meeting |
Semigroups, Automata and Languages
A seminal paper published in 2012 by Berstel et al.
Speaker: Alfredo Costa