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A nonlinear pseudoparabolic equation

Published online by Cambridge University Press:  14 November 2011

Dang Dinh Ang
Affiliation:
Department of Mathematics, Dai Hoc Tong Hop, Ho Chi Minh City University, Vietnam
Tran Thanh
Affiliation:
Department of Mathematics, Dai Hoc Tong Hop, Ho Chi Minh City University, Vietnam

Synopsis

The authors prove results on uniqueness and global existence of initial and boundary value problems for the nonlinear pseudoparabolic equation

with nonhomogeneous boundary conditions. A salient feature of the paper is that F and its partial derivatives are allowed to be unbounded. In the special case b(x, t)= α2 (a positive constant), it is proved that the corresponding solution uα, under appropriate conditions on the data (which are satisfied, for example, by the Benjamin–Bona–Mahony equation), uαu0 the solution corresponding to β = 0, on sufficiently small time interval. A result on the asymptotic behaviour of the solution is given for t → ∞.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1990

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