Learning Outcomes
Upon successful completion of the course, students will be able to study the phenomenon of recurrence (for points and sets) in systems, which will be able to decide whether they are ergodic, mixing, or weakly mixing. They will also be able to study the equidistribution of real sequences, through the Weyl and van der Corput criteria.
Course Content (Syllabus)
The goal of the course is to study the following topics:
• Measure preserving systems
• Recurrence and ergodicity
• Mean ergodic theorem
• Equidistributed sequences
• van der Corput's trick
• Polynomial recurrence
• Mixing and weak mixing systems
• Compact functions
• Multiple recurrence in weakly mixing systems
• Multiple recurrence in compact systems
• Complementarity between compactness and weak mixing
• Reduction of recurrence to ergodic systems
• Decomposition of measure into ergodic components
• Furstenberg's correspondence principle
• Szemerédi's theorem
Bibliography:
• M. Einsiedler and T. Ward. Ergodic theory with a view towards number theory, volume 259 of Graduate Texts in Mathematics. Springer-Verlag London, Ltd., London, 2011.
• H. Furstenberg. Recurrence in Ergodic Theory and Combinatorial Number Theory, Princeton University Press, 1981.
• P. Walters. An Introduction to Ergodic Theory, Springer-Verlag, 1982.
Keywords
Recurrence, weak mixing, compact functions, compact systems, ergodicity, arithmetic progressions, density
Additional bibliography for study
• M. Einsiedler and T. Ward. Ergodic theory with a view towards number theory, volume 259 of Graduate Texts in Mathematics. Springer-Verlag London, Ltd., London, 2011.
• H. Furstenberg. Recurrence in Ergodic Theory and Combinatorial Number Theory, Princeton University Press, 1981.
• P. Walters. An Introduction to Ergodic Theory, Springer-Verlag, 1982.