MAT7061 Ergodic Theory 光滑遍历论
课程学分/学时
Course Credit/Hours
Raul Ures, Professor;Jana Hertz, Professor
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Open to undergraduates
or not
MA301 实变函数
MA301Theory of Functions of a Real Variable, Real analysis, Topology
This course introduces the basic concepts of ergodic theory mainly focused on differentiable ergodic theory. It
focusses on the classical results that are important for the following development of the theory, preparing the
students for the study of more advanced topics and research.
The course will be taught in the standard way ( “ chalk and board”, in-class discussion, homework, office
hours, closed-book tests).
教学内容
Course Contents
(如面向本科生开放,请注明区分内容。 If the course is open to undergraduates, please indicate the
difference.)
Measure preserving transformations. Existence of invariant measures.
Poincaré recurrence theorem.
Ergodicity. Ergodic theorems of Von Neumann and Birkhoff.
Ergodic hierarchy. Mixing, K-automorphisms. Unique ergodicity
Examples: shifts, subshifts of finite type, toral automorphisms, toral
translations. Hopf argument.
Entropy: metric and topological entropy. Variational principle.
Ergodicity of Anosov diffeomorphisms. Hopf argument revisited.
Introduction to additional topics of differentiable ergodic theory: SRB
measures for hyperbolic attractors, Osedelec’s theorem, Pesin theory, Ruelle
inequality, Pesin equality, etc.