Destabilization for quasivariational inequalities of reaction-diffusion type |
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Authors: | Vítězslav Babický |
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Institution: | (1) Department of Mathematical Analysis, Faculty of Mathematics and Physics, Charles University, Sokolovská 83, 180 00 Prague 8, Czech Republic |
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Abstract: | We consider a reaction-diffusion system of the activator-inhibitor type with unilateral boundary conditions leading to a quasivariational inequality. We show that there exists a positive eigenvalue of the problem and we obtain an instability of the trivial solution also in some area of parameters where the trivial solution of the same system with Dirichlet and Neumann boundary conditions is stable. Theorems are proved using the method of a jump in the Leray-Schauder degree. |
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Keywords: | reaction-diffusion system unilateral conditions quasivariational inequality Leray-Schauder degree eigenvalue stability |
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