On the Motion, Amplification, and Blow-up of Fronts in Burgers-Type Equations with Quadratic and Modular Nonlinearity

On the Motion, Amplification, and Blow-up of Fronts in Burgers-Type Equations with Quadratic and Modular Nonlinearity

A singularly perturbed initial-boundary value problem for a parabolic equation, which is called in applications an equation of Burgers type, is considered. Existence conditions are obtained, and an asymptotic approximation of a new class of solutions with a moving front is constructed. The results a...

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Veröffentlicht in:Doklady. Mathematics 2020-07, Vol.102 (1), p.283-287
Hauptverfasser: Nefedov, N. N., Rudenko, O. V.
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Amplification
Boundary value problems
Mathematics
Mathematics and Statistics
Modular construction
Nonlinearity
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description A singularly perturbed initial-boundary value problem for a parabolic equation, which is called in applications an equation of Burgers type, is considered. Existence conditions are obtained, and an asymptotic approximation of a new class of solutions with a moving front is constructed. The results are applied to problems with quadratic and modular nonlinearity and nonlinear amplification. The influence of nonlinear amplification on the propagation and destruction of fronts is revealed. Estimates for the blow-up localization and blow-up time are obtained.
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subjects Amplification
Boundary value problems
Mathematics
Mathematics and Statistics
Modular construction
Nonlinearity
title On the Motion, Amplification, and Blow-up of Fronts in Burgers-Type Equations with Quadratic and Modular Nonlinearity
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