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Mathematics > Analysis of PDEs

arXiv:1804.00972 (math)
[Submitted on 30 Mar 2018]

Title:Well-posedness of the free boundary problem in incompressible elastodynamics under the mixed type stability condition

Authors:Xumin Gu, Fan Wang
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Abstract:We consider the free boundary problem for the incompressible elastodynamics equations. At the free boundary moving with the velocity of the fluid particles the columns of the deformation gradient are tangent to the boundary and the pressure vanishes outside the flow domain. We prove the local existence of a unique smooth solution of the free boundary problem, under the mixed type stability condition that some regions of the initial free boundary satisfy the Rayleigh-Taylor sign condition, while the remaining boundary satisfy the non-collinearity condition. In particular, we solve an open problem proposed by Y. Trakhinin in the paper \cite{Trak_18}.
Comments: arXiv admin note: substantial text overlap with arXiv:1609.07013, arXiv:1712.02152 and text overlap with arXiv:1705.11120 by other authors
Subjects: Analysis of PDEs (math.AP)
Cite as: arXiv:1804.00972 [math.AP]
  (or arXiv:1804.00972v1 [math.AP] for this version)
  https://doi.org/10.48550/arXiv.1804.00972

Submission history

From: Fan Wang [view email]
[v1] Fri, 30 Mar 2018 02:26:17 UTC (24 KB)
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