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Content archived on 2024-06-18

Smooth Ergodic Theory and Partially Hyperbolic Diffeomorphisms

Objective

The project deals with the interplay between some local and global aspects of discrete dynamical systems. In the first part we consider several problems related to the Entropy Conjecture. For any map f on a compact manifold M there are some invariants measuring the dynamical complexity at the ‘global’ level (homological or homotopical), like the spectral radius of the map induced on homology, the fundamental-group entropy, etc. In some situations these global invariants give a lower bound for some other ‘local’ invariants, which are in general harder to compute, like the topological entropy or the volume growth. We are interested in studying the relationship between the global and local invariants for different classes of maps, in particular the relationship between the volume growth and the invariants related to the fundamental group of M. On the second part of the proposal we consider partially hyperbolic diffeomorphisms (PHDs). One can associate to the stable and unstable foliations some closed currents or transversal measures, and consequently homology classes. In some situations one can relate the action induced by f on these homology classes with the volume growth of disks inside the leaves of the foliations, and consequently with the topological entropy of the map. For Anosov systems this was done by Shub-Williams and Ruelle-Sullivan, and for PHDs this was done in some cases by Saghin-Xia. We want to investigate when one can establish such relationships, and what are the possible applications of them.

Fields of science (EuroSciVoc)

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Topic(s)

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Call for proposal

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FP7-PEOPLE-IEF-2008
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Funding Scheme

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MC-IEF - Intra-European Fellowships (IEF)

Coordinator

Consorci Centre de Recerca Matematica
EU contribution
€ 145 937,11
Address
FACULTAD CIENCIES UAB APRATADO 50
08193 Bellaterra
Spain

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Region
Este Cataluña Barcelona
Activity type
Research Organisations
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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