Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X



On the question of global existence for reaction-diffusion systems with mixed boundary conditions

Author: Selwyn L. Hollis
Journal: Quart. Appl. Math. 51 (1993), 241-250
MSC: Primary 35K57; Secondary 35B35, 35K55
DOI: https://doi.org/10.1090/qam/1218366
MathSciNet review: MR1218366
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Abstract: The question of global existence for solutions of reaction-diffusion systems presents fundamental difficulties in the case in which some components of the system satisfy Neumann boundary conditions while others satisfy nonhomogeneous Dirichlet boundary conditions. We discuss particular examples for which classical solutions are known to exist globally when all components satisfy the same type of boundary condition and yet either finite-time blowup occurs or else global existence is unknown when mixed boundary condition types are imposed on the system. Some positive results are presented concerning global existence in the presence of mixed boundary conditions if certain structure requirements are placed on the system, and these results are applied to some particular chemical reaction models.

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DOI: https://doi.org/10.1090/qam/1218366
Article copyright: © Copyright 1993 American Mathematical Society

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