The commuting graph of a finite non-commutative semigroup $S$ is the simple graph whose vertices…
Seminars
Future and Ongoing Seminars
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Speaker: Tânia Paulista
FC1.031 |
Dynamical Systems
We introduce a class of linear bounded invertible operators on Banach spaces, called shift…
Speaker: Udayan B. Darji
FC1 031 and online |
Algebra, Combinatorics and Number Theory
Kruskal’s uniqueness theorem gives a simple criterion ensuring that a 3-way tensor admits a…
Speaker: Alexander Taveira Blomenhofer
FC1 031 and online |
Algebra, Combinatorics and Number Theory
I will review some classical examples of groups whose strictly descending chains of subgroups…
Speaker: Sam Corson
Past Seminars
Room FC1.029, DMat-FCUP |
Semigroups, Automata and Languages
In this work, we define a congruence $\eta^{\ast}$ on semigroups. For the finite semigroups $S$, $
Speaker: M. Hossein Shahzamanian (CMUP)
Room M031 |
Dynamical Systems
Fernandez and Demers studied the statistical properties of the Manneville-Pomeau
map with the physic
Speaker: Mike Todd(*) (University of St Andrews, Scotland)
Room FC1.004, DMat-FCUP |
Semigroups, Automata and Languages
We present a geometric approach to groups defined by transducers via the notion of enriched dual. We
Speaker: Emanuele Rodaro (CMUP)
Room M031 |
Dynamical Systems
Apresentaremos o conceito de estabilidade estatística e ofereceremos uma visita
guiada por alguns
Speaker: José Ferreira Alves (FCUP and CMUP)
M006 |
Geometry and Topology
Hyperbolic groups were introduced by Mikhail Gromov in the 80s by considering the geometry of Cayley
Speaker: Pedro V. Silva (CMUP)
Room M031 |
Dynamical Systems
In this talk, after a brief survey on linear response formula results, we will focus
in some develop
Speaker: Armando Castro Jr. (Universidade Federal da Bahia - UFBA, Brasil)
Room FC1.004, DMat-FCUP |
Semigroups, Automata and Languages
In the first part of this talk we investigate the minimum length of elements in the minimum ideal
Speaker: Nasim Karimi (FCUP / CMUP)
Room M031 |
Dynamical Systems
Daremos condições explícitas (que definem um conjunto C1-aberto de difeomor- fismos) que garantem
Speaker: Lorenzo Dias (PUC-Rio, Rio de Janeiro, Brasil)
Room 0.04, FC1 |
Geometry and Topology
In a previous paper, I proved that two very different constructions of monotone Lagrangian tori are
Speaker: Agnès Gadbled (CMUP)
Room M031 |
Dynamical Systems
Large deviation type estimates of a linear cocycle can be used to prove the continuity of its Lyapun
Speaker: Pedro Duarte (CEMAPRE – ISEG, Universidade Técnica de Lisboa)
Room 0.04 (FC1) |
Geometry and Topology
Consider a complete intersection $X=Q_0 \cap Q_1$ of two quadrics in $\mathbb P^5.$ Choose a line $L
Speaker: Dan Avritzer (Universidade Federal de Minas Gerais)
Room M031 |
Dynamical Systems
Three-dimensional symmetries are often observed as 2-dimensional objects. In
this seminar we will pr
Speaker: Juliane Oliveira (FCUP, CMUP)
Room 0.04 (FC1) |
Geometry and Topology
According to the celebrated Trisecant Lemma, a general projection of a smooth algebraic curve
Speaker: Christian Peskine (Institut de Mathématiques de Jussieu)
Room M031 |
Dynamical Systems
See the attached file.
Speaker: Enrique Vigil Álvarez (University of Oviedo, Spain)
Room M031 |
Dynamical Systems
We consider nonwandering dynamics near heteroclinic cycles between two hyper- bolic equilibria. The
Speaker: Kevin Webster (Imperial College of London, UK)
Room FC1.030, DMat-FCUP |
Semigroups, Automata and Languages
Černý's conjecture is one of the most longstanding open problems in the theory of finite automata
Speaker: Emanuele Rodaro (CMUP)
Math. Dep. (FC1), room 004 |
Algebra, Combinatorics and Number Theory
We study a problem of birational equivalence for polynomial Poisson algebras over a field of arbitra
Speaker: César Lecoutre (Univ. of Kent - Canterbury, UK)
Anfiteatro 0.30, Departamento de Matemática, FCUP |
Other
A EU-MATHS-IN, formalmente constituída em Amesterdão em novembro de 2013, é uma rede que visa est
Speaker: Adérito Araújo, Manuel Cruz e Gabriel Pires
Room M031 |
Dynamical Systems
Estudaremos o comportamento assintotico (expoentes de Lyapunov) de cociclos lineares sobre alguns di
Speaker: Mohammad Fannaee (Univ. Federal Fluminense & FCUP)
Room 0.29, Mathematics building, FCUP |
Algebra, Combinatorics and Number Theory
A non-abelian tensor product of Hom-Lie algebras is constructed and studied. This tensor product is
Speaker: J.M. Casas (University of Vigo)