The variational parabolic inequality of higher order in an unbounded domain. Uniqueness

Author
L. Zaręba
University of Rzeszów, Institute of Mathematics,Rejtana 16A, 35-959 Rzeszów, Poland
Abstract
In this paper we consider the variational parabolic inequality for the operator $u_{tt}+A_{3}u+A_{4}u_{t}+g(u_{t})$ in unbounded domain, where $A_{3}$ is a linear elliptic operator of the fourth order and $A_{4}$ is a linear elliptic operator of the second order. We obtain some conditions of the uniqueness of solution. We prove the uniqueness using the method of introducing a parameter.
Keywords
variational parabolic inequality, unbounded domain, second order linear elliptic operator
DOI
doi:10.30970/ms.22.1.57-66
Reference
1. Fridman A. Regularity theorems for variational inequalities in unbounded domains and application to stopping time problems, Arch. Rational Mech. Anal. 52 (1973), 134–160.

2. Urbańska K. Parabolic variational inequality in unbounded domains, Mat. Studii. 19 (2003), No. 2, 165–180.

3. Lions J. L. Quelques méthodes de résolution des problèms aux limites non linéaires, Paris, 1969.

4. Duvaut G., Lions J.L. Les inéquations en mécanique et en physique, Travax et Recherches Mathématiques, (1972), No. 21 Dunod, Paris.

5. Бугрій О. M. Параболічна варіаційна нерівність вищого порядку в обмеженій області, Вісник Львівського національного ун-ту. Сер. мех.-мат. (2001), No. 59, 102–115.

6. Олейник О. А., Радкевич Е. В. Метод введений параметра для исследования эволюционных урав­не­ний, Успехи мат. наук 203 (1978), No. 5, 7–76.

Pages
57-66
Volume
22
Issue
1
Year
2004
Journal
Matematychni Studii
Full text of paper
pdf
Table of content of issue