# Seminars

FC1 005 |
General seminar of CMUP

### An overview of gradient elliptic systems with cooperative or competitive interactions: existence, asymptotics and qualitative properties

Abstract:  We deal with semilinear systems of stationary reaction-diffusion equations…

Speaker: Hugo Tavares
FC 0.31 |
Geometry and Topology

### Complexity reduction via Virtual Resolutions

In this talk I will explain how virtual resolutions are useful to study the geometrical…

Speaker: Eliana Duarte
Geometry and Topology

### Locally conformally SKT structures

As is well known, a Hermitian metric on a complex manifold is called SKT (strong K\”ahler with…

Speaker: Ana Cristina Ferreira
Online Zoom meeting |
Semigroups, Automata and Languages

### Computing with finitely presented semigroups and monoids

In this talk I will give an overview of the fundamental algorithms for computing…

Speaker: James Mitchell
FC1.031 |
CMUP Informal PHD Seminar

### Subsets of groups: rational and context-free

Rational and recognizable subsets of groups are part of an important connection between the…

Speaker: André Carvalho
Room 1.19 |
Geometry and Topology

### NON-WEAKLY TAME SURFACES: ERGODICITY AND CONSERVATIVITY OF THE HOROCYCLE FLOW

For some classes of hyperbolic surfaces, all locally finite ergodic measures  invariant under…

Speaker: DR. Cheikh lo
FC1 030 |
Algebra, Combinatorics and Number Theory

### Hom-algebra structures

In this talk, an overview will be presented about hom-algebra structures, with focus on…

Speaker: Sergei Silvestrov
FC1.031 |
Dynamical Systems

### Lyapunov exponents for transfer operator cocycles of random one-dimensional maps

Non-autonomous or random dynamical systems provide useful and flexible models to investigate…

Speaker: Cecilia Gonzalez Tokman
Online Zoom meeting |
Semigroups, Automata and Languages

### Finite quotients of singular Artin monoids

In this talk I will present a certain hierarchy of diagrammatic monoids which can be unified by…

Speaker: Volodymyr Mazorchuk
FC1 030 |
Algebra, Combinatorics and Number Theory

### Random subgraphs of the hypercube

Hypercubes are arguably one of the most fundamental and most studied objects in Combinatorics.…

Speaker: António Girão
Room 1.20 |
Geometry and Topology

### Compact Hyperkaehler varieties: from smooth to singular

Compact Hyperkaeler manifolds play a central role in complex algebraic geometry, as they arise…

Speaker: Valeria Bertini
FC1 030 |
Algebra and Geometry

### Joint Algebra and Geometry Seminar

Title: 2-Representations of affine type A Soergel bimodules: some observations and examples.  …

Speaker: Marco Mackaaij
FC1.004 |
Dynamical Systems

### Exponential decay of correlations for unbounded observables

We consider nonuniformly hyperbolic dynamical systems with exponential decay of correlations,…

Speaker: Ian Melbourne
FC1.004 |
Dynamical Systems

### Quenched decay of correlations for random expanding Lorenz maps

The expanding Lorenz map, which is obtained by taking a Poi…

Speaker: Andrew Larkin
FC1.030 |
Dynamical Systems

### About the stability of heteroclinic cycles: a new approach

Title: About the stability of heteroclinic cycles: a new approach

Speaker: Alexandre…

Speaker: Alexandre Rodrigues
Room M030, DMat-FCUP |
Computational Mathematics

### Tempered Monoids of Real Numbers, the Golden Fractal Monoid, and the Well-Tempered Harmonic Semigroup

Abstract

Speaker: Maria Bras-Amorós
FC1.030 |
Dynamical Systems

### Symmetries of smooth flows and their time-t maps

We study the discrete centralizers of smooth flows and their time-t maps. Centralizers describe…

Speaker: Wescley Bonomo
Online Zoom meeting |
Semigroups, Automata and Languages

### Eventually fixed points of endomorphisms of virtually free groups

The study of the subgroup fixed by an automorphism of a free group started with the work of…

Speaker: André Carvalho
FC1.031 |
Dynamical Systems

### Product of isometries of strongly hyperbolic spaces

The study of random products of operators appears naturally in many
areas of mathematics…

Speaker: Luís Sampaio
Online Zoom meeting |
Semigroups, Automata and Languages

### Alternating and symmetric groups with Eulerian generating graph

Given a finite group $G$, the generating graph $\Gamma(G)$ of $G$ has as vertices the (…

Speaker: Claude Marion