Isentropic approximation of the compressible Euler equations in Besov spaces

摘要

The article mainly studies the isentropic approximation of the compressible Euler equations in Besov space B2,rs(RN), provided the initial entropy S similar to 0(x) changes closing a constant delta in the Besov spaces, which extends and improves the result in Sobolev space L2(RN) by Jia and Pan.