Joint IAS-PU Symplectic Geometry Seminar | |

Topic: | Stochastic Twist Maps and Symplectic Diffusions |

Speaker: | Fraydoun Rezakhanlou |

Affiliation: | University of California at Berkeley |

Date: | Friday, October 28 |

Time/Room: | 4:15pm - 5:15pm/S-101 |

Video Link: | https://video.ias.edu/joint/twist |

I discuss two examples of random symplectic maps in this talk. As the first example consider a stochastic twist map that is defined to be a stationary ergodic twist map on a planar strip. As a natural question, I discuss the fixed point of such maps and address a Poincare-Birkhoff type theorem. As the second example I consider stochastic flows associated with diffusions and discuss those diffusions which produce symplectic maps only in average sense. Using stochastic diffusions, it is possible to derive Iyer-Constantin Circulation Theorem for Navier-Stokes Equation.