Electron. J. Diff. Equ., Vol. 2015 (2015), No. 252, pp. 1-9.

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

Mikhail A. Artemov, Evgenii S. Baranovskii

Abstract:
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.

Submitted June 17, 2015. Published September 29, 2015.
Math Subject Classifications: 35Q35, 35D30.
Key Words: Mixed boundary-value problems; weak solutions; existence theorem; viscoelastic medium.

Show me the PDF file (219 KB), TEX file, and other files for this article.

Mikhail A. Artemov
Department of Applied Mathematics, Informatics and Mechanics
Voronezh State University
394006 Voronezh, Russia
email: artemov_m_a@mail.ru
Evgenii S. Baranovskii
Department of Applied Mathematics, Informatics and Mechanics
Voronezh State University
394006 Voronezh, Russia
email: esbaranovskii@gmail.com

Return to the EJDE web page