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This paper is devoted to the study of semilinear degenerate elliptic boundary value problems arising in combustion theory which obey the simple Arrhenius rate law and a general Newton law of heat exchange. We prove that ignition and extinction phenomena occur in the stable steady temperature profile at some critical values of a dimensionless rate of heat production.
positive solutions, Banach space, Newtonian cooling, Smoothness and regularity of solutions to PDEs, Arrhenius rate law, nonlinear operator equation, existence, Combustion, uniqueness, heat flow, variational formula, fixed point technique, Nonlinear boundary value problems for linear elliptic equations, QA1-939, Frank-Kamenetskij parameter, General existence and uniqueness theorems (PDE), Mathematics
positive solutions, Banach space, Newtonian cooling, Smoothness and regularity of solutions to PDEs, Arrhenius rate law, nonlinear operator equation, existence, Combustion, uniqueness, heat flow, variational formula, fixed point technique, Nonlinear boundary value problems for linear elliptic equations, QA1-939, Frank-Kamenetskij parameter, General existence and uniqueness theorems (PDE), Mathematics
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