# American Institute of Mathematical Sciences

February  2006, 15(1): 225-236. doi: 10.3934/dcds.2006.15.225

## Existence and uniqueness of maximizing measures for robust classes of local diffeomorphisms

 1 Departamento de Matemática - UFAL, Campus A.C. Simões, s/n 57072-090 Maceió, Alagoas, Brazil 2 IMPA, Estrada Dona Castorina 110, 22460-320 Rio de Janeiro, RJ

Received  September 2004 Revised  February 2005 Published  February 2006

We prove existence of maximal entropy measures for an open set of non-uniformly expanding local diffeomorphisms on a compact Riemannian manifold. In this context the topological entropy coincides with the logarithm of the degree, and these maximizing measures are eigenmeasures of the transfer operator. When the map is topologically mixing, the maximizing measure is unique and positive on every open set.
Citation: Krerley Oliveira, Marcelo Viana. Existence and uniqueness of maximizing measures for robust classes of local diffeomorphisms. Discrete & Continuous Dynamical Systems - A, 2006, 15 (1) : 225-236. doi: 10.3934/dcds.2006.15.225
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