期刊
JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES
卷 83, 期 2, 页码 243-275出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matpur.2003.11.004
关键词
compressible Navier-Stokes equations; strong solutions; blow-up criterion; compatibility condition; vacuum
We study the Navier-Stokes equations for compressible barotropic fluids in a domain Omega subset of R-3. We first prove the local existence of the unique strong solution, provided the initial data satisfy a natural compatibility condition. The initial density needs not be bounded away from zero; it may vanish in an open subset (vacuum) of Omega or decay at infinity when Omega is unbounded. We also prove a blow-up criterion for the local strong solution, which is new even for the case of positive initial densities. Finally, we prove that if the initial vacuum is not so irregular, then the compatibility condition of the initial data is necessary and sufficient to guarantee the existence of a unique strong solution. (C) 2003 Elsevier SAS. All rights reserved.
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