Mixed boundary-value problems for motion equations of a viscoelastic medium

We study the mixed boundary-value problem for steady motion equations of an incompressible viscoelastic medium of Jeffreys type in a fixed three-dimensional domain. On one part of the boundary the no-slip condition is provided, while on the other one the impermeability condition and non-homogeneo...

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Bibliographic Details
Main Authors: Mikhail A. Artemov, Evgenii S. Baranovskii
Format: Article
Language:English
Published: Texas State University 2015-09-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2015/252/abstr.html
Description
Summary:We study the mixed boundary-value problem for steady motion equations of an incompressible viscoelastic medium of Jeffreys type in a fixed three-dimensional domain. On one part of the boundary the no-slip condition is provided, while on the other one the impermeability condition and non-homogeneous Dirichlet boundary conditions for tangential component of the surface force is used. The existence of weak solutions of the formulated boundary-value problem is proved. Some estimates for weak solutions are established; it is shown that the set of weak solutions is sequentially weakly closed.
ISSN:1072-6691