Abstract
Existence of solutions of reaction-diffusion systems of equations in unbounded domains is studied by the Leray–Schauder (LS) method based on the topological degree for elliptic operators in unbounded domains and on a priori estimates of solutions in weighted spaces. We identify some reaction-diffusion systems for which there exist two subclasses of solutions separated in the function space, monotone and nonmonotone solutions. A priori estimates and existence of solutions are obtained for monotone solutions allowing to prove their existence by the LS method. Various applications of this method are given.
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Translated from Sovremennaya Matematika. Fundamental’nye Napravleniya (Contemporary Mathematics. Fundamental Directions), Vol. 63, No. 3, Differential and Functional Differential Equations, 2017.
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Volpert, V., Vougalter, V. Method of Monotone Solutions for Reaction-Diffusion Equations. J Math Sci 253, 660–675 (2021). https://doi.org/10.1007/s10958-021-05260-2
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DOI: https://doi.org/10.1007/s10958-021-05260-2