学术报告-何凌冰

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2018-03-09 08:46:00

学术报告

    题      目:Asymptotics of the linearized Boltzmann collision operator from angular cutoff to non-cutoff

报  告  人:何凌冰  教授  (邀请人:喻洪俊)

                      清华大学数学系


时      间:2018-03-09 16:00--17:00

地      点:学院401

报告人简介:

        何凌冰教授,清华大学数学系,博士毕业于中科院,主要研究方向为Boltzmann方程及Landau方程解的正则性传播和渐进性行为。


摘      要:

   In this talk, we will give a complete and explicit description on the asymptotic behavior of the linearized Boltzmann collision operator and its associated equation from angular cutoff to non-cutoff. As a result, we give quantitative estimates on the semi-group generated by the operator. It provides a mathematical explanation that for the moderate soft potentials there is no jump for the property that the operator with cutoff does not have the spectral gap but the operator without cutoff does have.