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On a singular limit for the stratified compressible Euler system
唐童(副教授)
6月21日(周五)下午2:30-3:30  闵行数学楼402报告厅

摘要:We consider a singular limit for the compressible Euler system in the low Mach number regime driven by a large external force. We show that any dissipative measure-valued solution approaches a solution of the lake equation in the asymptotic regime of low Mach and Froude numbers. The result holds for the ill-prepared initial data creating rapidly oscillating acoustic waves. We use dispersive estimates of Strichartz type to eliminate the effect of the acoustic waves in the asymptotic limit.

邀请人:张艳艳