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An extension of the principle of spatial averaging for inertial manifolds

Published online by Cambridge University Press:  09 April 2009

Hyukjin Kwean
Affiliation:
Department of Mathematics Education, College of Education, Korea University, Sungbuk-Ku Anam-Dong, 136-701 Seoul, Korea e-mail: [email protected]
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Abstract

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In this paper we extend a theorem of Mallet-Paret and Sell for the existence of an inertial manifold for a scalar-valued reaction diffusion equation to new physical domains ωnRn, n = 2,3. For their result the Principle of Spatial Averaging (PSA), which certain domains may possess, plays a key role for the existence of an inertial manifold. Instead of the PSA, we define a weaker PSA and prove that the domains φn with appropriate boundary conditions for the Laplace operator, δ, satisfy a weaker PSA. This weaker PSA is enough to ensure the existence of an inertial manifold for a specific class of scalar-valued reaction diffusion equations on each domain ωn under suitable conditions.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1999

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