3/8/2004 Superdiffusivity of two dimensional stochastic particle systems; Horng-Tzer Yau - Stanford University

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Date: Thu Feb 19 2004 - 09:39:23 PST

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    You are invited to attend...

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    WHO: Horng-Tzer Yau

    AFFILIATION: Stanford University

    TITLE: Superdiffusivity of two dimensional stochastic
    particle systems

    WHEN: Mon 3/8/2004

    WHERE: 113/1159 Research Lecture Room, MS Research

    TIME: 3:30pm to 5:00pm

    HOST: Jennifer Chayes

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    ABSTRACT:

    Consider a model of lattice gas dynamics with the incompressible
    Navier-Stokes equations as the formal limit. We shall prove that its
    viscosity converges in dimension $d\ge3$ and diverges for $d\le 2$. This
    shows that the two dimensional Navier-Stokes equations have a
    logarithmic discrepancy in modelling the two dimensional fluid. For the
    special case of the two dimensional asymmetric simple exclusion process,
    the diffusion coefficient is proved to diverge as $(\log t)^{2/3}$ to
    the leading order in $d=2$.

     

    BIO:

    Horng-Tzer Yau received his Ph.D. at Princeton University in 1987.
    Currently he is a Professor of Mathematics at Stanford University where
    his research interests are Probability, Stochastic process,
    Nonequilibrium statistical physics, Quantum mechanics, Mathematical
    physics, and Partial differential equations.


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