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Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki, 2006, Volume 46, Number 4, Pages 624–646
(Mi zvmmf485)
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This article is cited in 1 scientific paper (total in 1 paper)
Stationary internal layers in a reaction-advection-diffusion integro-differential system
N. N. Nefedova, O. E. Omel'chenkob, L. Reckec a Faculty of Physics, Moscow State University, Leninskie gory, Moscow, 119992, Russia
b Institute of Mathematics, National Academy of Sciences of Ukraine, Tereshchenkovskaya ul. 3, Kiev, 01601, Ukraine
c Institut für Mathematik, Humboldt Universität zu Berlin, Unter den Linden 6, Berlin, 10099, Germany
Abstract:
A class of singularly perturbed nonlinear integro-differential problems with solutions involving internal transition layers (contrast structures) is considered. An asymptotic expansion of these solutions with respect to a small parameter is constructed, and the stability of stationary solutions to the associated integro-parabolic problems is investigated. The asymptotics are substantiated using the asymptotic method of differential inequalities, which is extended to the new class of problems. The method is based on well-known theorems about differential inequalities and on the idea of using formal asymptotics for constructing upper and lower solutions in singularly perturbed problems with internal and boundary layers.
Key words:
singularly perturbed integro-parabolic problems, internal layers, contrast structures, differential inequalities.
Received: 31.10.2005
Citation:
N. N. Nefedov, O. E. Omel'chenko, L. Recke, “Stationary internal layers in a reaction-advection-diffusion integro-differential system”, Zh. Vychisl. Mat. Mat. Fiz., 46:4 (2006), 624–646; Comput. Math. Math. Phys., 46:4 (2006), 594–615
Linking options:
https://www.mathnet.ru/eng/zvmmf485 https://www.mathnet.ru/eng/zvmmf/v46/i4/p624
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