Global Existence for the Multi-Dimensional Compressible Viscoelastic flows

Details Global Existence for the Multi-Dimensional Compressible Viscoelastic flows Global Existence for the Multi-Dimensional Compressible Viscoelastic flows

2010-10-21

arxiv.org/abs/1010.4351v1

Mathematics

Analysis of PDEs

Scientific paper

The global solutions in critical spaces to the multi-dimensional compressible viscoelastic flows are considered. The global existence of the Cauchy problem with initial data close to an equilibrium state is established in Besov spaces. Using uniform estimates for a hyperbolic-parabolic linear system with convection terms, we prove the global existence in the Besov space which is invariant with respect to the {scaling} of the associated equations. Several important estimates are achieved, including a smoothing effect on the velocity, and the $L^1-$decay of the density and deformation gradient.

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