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）
时 间：2018-03-09 16:00--17:00
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.