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
DMP, Sala 0.07 |
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 Puczylowski
Sala 0.04 (DMP - FCUP) |
Semigroups, Automata and Languages
Uma pseudovariedade diz-se decidível se existe um algoritmo que decida se um dado semigrupo pertenc
Speaker: Conceição Nogueira
sala 0.05 |
Geometry and Topology
Let X and X' be a smooth projective curves over the complex numbers, the classical Torelli theorem
Speaker: Marina Logares (Pós-doc FCUP)
Anfiteatro 0.06 - Edifício das Matemáticas |
Dynamical Systems
In this talk we describe some older and some newer results on the use of the Lyapunov-Schmidt reduct
Speaker: Andre Vanderbauwhede (University of Ghent, Belgium)
Anfiteatro 0.03 - Edifício das Matemáticas |
Dynamical Systems
We investigate stability of convective flows in a layer with stress-free horizontal boundaries near
Speaker: Olga Podvigina (MITPAN, Moscovo, Russia)
Sala 0.03 |
Geometry and Topology
Representations of surface groups into SL(3,C) are parameterized by conjugacy classes. When classes
Speaker: Sean Lawton (Pós-doc IST)
Anfiteatro 0.05 - Edifício das Matemáticas |
Dynamical Systems
In this talk we introduce an algorithmic method for the analysis of the global structure of dynamics
Speaker: Paweł Pilarczyk (Kyoto University, Japan)
Anfiteatro 0.05 - Edifício das Matemáticas |
Dynamical Systems
Consideremos $f:M\to M$ um difeomorfismo com decomposição dominada $TM=E^{cs}\oplus E^{cu}}$. Um e
Speaker: Carlos Vasquez
anfiteatro 0.05 - edifício das matemáticas |
Seminário da pós-graduação
A análise de registos longos e não estacionários da variabilidade da frequência cardíaca (HRV)
Speaker: Argentina Leite
(DMA e CMUP)
(DMA e CMUP)
sala 0.05 |
Geometry and Topology
e um resultado clássico que as transformações canónicas (simplecticas) preservam o volume, mas s
Speaker: Jose Basto Gonçalves (CMUP)
Anfiteatro 0.05 - Edifício das Matemáticas |
Dynamical Systems
Given a sequence of random variables X_1, X_2, X_3,....., extreme statistics is concerned with the l
Speaker: Mark Holland (University of Exeter)
Anfiteatro 0.05 - Edifício das Matemáticas |
Dynamical Systems
We construct a renormalization scheme based on multidimensional continued fractions in
order to desc
Speaker: João Lopes Dias (ISEG - UTL)
Anfiteatro 0.04 - Edifício das Matemáticas |
Dynamics and applications
Speaker: Athanasios Yannacopoulos (Athens University of Economics and Business)
Anf. 0.04 (DMP-FCUP) |
Semigroups, Automata and Languages
In this lecture, I will present the new algorithms and the new features implemented in Semigroupe 2.
Speaker: Jean-Eric Pin (LIAFA, CNRS e Universite Paris 7)
Anf. 0.04 (DMP-FCUP) |
Semigroups, Automata and Languages
We present an O(m \log n)-time minimization algorithm for almost of finite-type automata, where n is
Speaker: Marie-Pierre Beal (Universite Paris-Est)
0.27 (DMA - FCUP) |
Semigroups, Automata and Languages
Nos últimos anos tem havido muito desenvolvimento na área de monóides profinitos livres, principa
Speaker: Benjamin Steinberg
(Carleton University, Canada)
(Carleton University, Canada)
Sala 0.27 (DMA- FCUP) |
Semigroups, Automata and Languages
The problem of the enumeration of minimal (non-isomorphic) n state acyclic deterministic finite auto
Speaker: Rogerio Reis
(DCC-FC & LIACC, UP)
(DCC-FC & LIACC, UP)
Anfiteatro 0.04 - Edifício das Matemáticas |
Dynamical Systems
Serão introduzidos e estudados, de um ponto de vista combinatório-topológico, alguns semigrupos d
Speaker: Joana Torres (Universidade do Minho)
Anfiteatro 0.04 - Edifício das Matemáticas |
Dynamical Systems
Speaker: Javier Solano (IMPA, Brasil)
Anfiteatro 0.04 - Edifício das Matemáticas |
Dynamical Systems
The existence of acips for interval maps with critical points is usually related to the growth-rate
Speaker: Henk Bruin (University of Surrey, UK)