6 citations · 9 across the 4 of their papers we have counts for
6 papers
An entropy dichotomy for singular star flows
Maria José Pacifico, Fan Yang, Jiagang Yang
We show that non-trivial chain recurrent classes for generic star flows satisfy a dichotomy: either they have zero topological entropy, or they must be isolated. Moreover, ch…
Expansiveness, Lyapunov exponents and entropy for set valued maps
Maria José Pacifico, José Vieitez
In this paper we introduce a notion of expansiveness for a set valued map defined on a topological space different from that given by Richard Williams at \cite{Wi, Wi2} and prove t…
Decay of correlations, quantitative recurrence and logarithm law for contracting Lorenz attractors
Stefano Galatolo, Isaia Nisoli, Maria José Pacifico
In this paper we prove that a class of skew products maps with non uniformly hyperbolic base has exponential decay of correlations. We apply this to obtain a logarithm law for the…
Hausdorff Dimension, Lagrange and Markov Dynamical Spectra for Geometric Lorenz Attractors
Carlos Gustavo Moreira, Maria José Pacifico, Sergio Romaña
In this paper, we show that geometric Lorenz attractors have Hausdorff dimension strictly greater than . We use this result to show that for a "large" set of real functions the…
N-expansive homeomorphisms on surfaces
Alfonso Artigue, Maria José Pacifico, José Vieitez
We exploit the techniques developed in [Le] to study N-expansive homeomorphisms on surfaces. We prove that when f is a 2-expansive homeomorphism defined on a compact boundaryless s…
Evolution of the population of Microtus Epiroticus: the Yoccoz-Birkeland model
Juan José Nieto, Maria José Pacifico, José Ladislau Vieitez
We study the discretized version of a dynamical system given by a model proposed by Yoccoz and Birkeland to describe the evolution of the population of Microtus Epiroticus on Svalb…