The Rovella attractor is asymptotically sectional-hyperbolic
Por Bernardo San Martin (Universidad Católica del Norte).
Sistemas Dinâmicos
Finite time dynamics and predictions for strongly chaotic dynamical and stochastic systems
Por Leonid Bunimovich (Georgia Tech).
Some fixed points for a dynamical system on a probability space
Por Alexandre T. Baraviera (IME-Universidade Federal do Rio Grande do Sul).
In this talk we revisit a model introduced by Marchetti and Perez in order to understand in a rigorous way a renormalization group approach for the Coulumb gas on the lattice; the model corresponds to a map (depending on a parameter \beta) on the probabilities defined on the integers. Our goal is to provide another approach for the existence of non trivial fixed points of this map when the parameter \beta is smaller than a certain critical value.
Symbolic dynamics of piecewise contractions
Por Benito Pires (Universidade de São Paulo).
Asymptotically sectional-hyperbolic attractors
Por Bernardo San Martin (Universidad Católica del Norte).
Statistical Instability for Rovella Maps
Por Muhammad Ali Khan (FCUP).
Phase transitions for KMS states in the Cuntz c-star algebra
Por Alexandre Baraviera (Instituto de Matemática e Estatística - Universidade Federal do Rio Grande do Sul).
Openness of positive Lyapunov exponents for Linear cocycles over partially hyperbolic maps
Mauricio Poletti
Université Paris 13
Neural Networks: recent advances - Deep learning - and some (mathematical?) problems
Por Rui Alberto Pimenta Rodrigues (Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa).
Abstract: (Deep) Neural networks seem to be achieving the targets drawn for Artificial Intelligence in the early 60's. We will present the practical accomplishments. The underlying mathematical models will be discussed:
The notion of twist: from the Poincaré-Birkhoff Theorem towards higher dimension
Paolo Gidoni
CMAF-CIO, Universidade de Lisboa