{ "id": "0810.3855", "version": "v1", "published": "2008-10-21T15:05:46.000Z", "updated": "2008-10-21T15:05:46.000Z", "title": "Contributions to the Geometric and Ergodic Theory of Conservative Flows", "authors": [ "Mario Bessa", "Jorge Rocha" ], "comment": "26 pages, 2 figures", "categories": [ "math.DS" ], "abstract": "We prove the following dichotomy for vector fields in a C1-residual subset of volume-preserving flows: for Lebesgue almost every point all Lyapunov exponents equal to zero or its orbit has a dominated splitting. As a consequence if we have a vector field in this residual that cannot be C1-approximated by a vector field having elliptic periodic orbits, then, there exists a full measure set such that every orbit of this set admits a dominated splitting for the linear Poincare flow. Moreover, we prove that a volume-preserving and C1-stably ergodic flow can be C1-approximated by another volume-preserving flow which is non-uniformly hyperbolic.", "revisions": [ { "version": "v1", "updated": "2008-10-21T15:05:46.000Z" } ], "analyses": { "subjects": [ "37D30", "37D25", "37A99", "37C10" ], "keywords": [ "ergodic theory", "conservative flows", "vector field", "contributions", "linear poincare flow" ], "note": { "typesetting": "TeX", "pages": 26, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0810.3855B" } } }