On convergence and compactness in parabolic problems with globally large diffusion and nonlinear boundary conditions

Maria C. Carbinatto, Krzysztof P. Rybakowski

Abstract


We establish some abstract convergence and compactness results
for families of singularly perturbed semilinear parabolic equations and apply them to
reaction-diffusion equations with nonlinear boundary conditions and large diffusion.
This refines some previous results of
[R. Willie, < i> A semilinear reaction-diffusion system of equations and large
diffusion< /i> , J. Dynam. Differential Equations < b> 16< /b> (2004), 35-63].

Keywords


Conley index; homology index braids; localized large diffusion; singular perturbations

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