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JOURNALS // Vladikavkazskii Matematicheskii Zhurnal // Archive

Vladikavkaz. Mat. Zh., 2024 Volume 26, Number 2, Pages 26–38 (Mi vmj907)

Existence of solutions for a class of impulsive Burgers equation

S. G. Georgievab, A. Hakemc

a Department of Mathematics, Sorbonne University, Paris 75005, France
b Department of Differential Equations, Sofia University “St. Kliment Ohridski”, 15 Tzar Osvoboditel Blvd., Sofia 1504, Bulgaria
c Department of EBST, Djillali Liabes University, Sidi Bel Abbes 22000, Algeria

Abstract: We study a class of impulsive Burgers equations. A new topological approach is applied to prove the existence of at least one and at least two nonnegative classical solutions. The arguments are based on recent theoretical results. Here we focus our attention on a class of Burgers equations and we investigate it for the existence of classical solutions. The Burgers equation can be used for modeling both traveling and standing nonlinear plane waves. The simplest model equation can describe the second-order nonlinear effects connected with the propagation of high-amplitude (finite-amplitude waves) plane waves and, in addition, the dissipative effects in real fluids. There are several approximate solutions to the Burgers equation. These solutions are always fixed to areas before and after the shock formation. For an area where the shock wave is forming no approximate solution has yet been found. Therefore, it is therefore necessary to solve the Burgers equation numerically in this area.

Key words: Burgers equation, impulsive Burgers equation, positive solution, fixed point, cone, sum of operators.

UDC: 517.95

MSC: 47H10, 35K70, 4G20

Received: 13.10.2023

Language: English

DOI: 10.46698/x1302-5604-8948-x



© Steklov Math. Inst. of RAS, 2025