International Journal of Nonlinear Analysis and Applications

Blow up of solutions for a r(x)-Laplacian Lam\'{e} equation with variable-exponent nonlinearities and arbitrary initial energy level

Document Type : Research Paper

Author

Department of Mathematics, Jahrom University, Jahrom, Iran

Abstract

In this paper, we consider the nonlinear $r(x)-$Laplacian Lam'{e} equation
$$
u_{tt}-\Delta_{e}u-div\big(|\nabla u|^{r(x)-2}\nabla u\big)+|u_{t}|^{m(x)-2}u_{t}=|u|^{p(x)-2}u
$$
in a smoothly bounded domain $\Omega\subseteq R^{n},\ n\geq1$, where $r(.),\ m(.)$ and $p(.)$ are continuous and measurable functions. Under suitable conditions on variable exponents and initial data, the blow-up of solutions is proved with negative initial energy as well as positive.

Keywords

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International Journal of Nonlinear Analysis and Applications
Volume 13, Issue 1
March 2022
Pages 441-450
  • Receive Date: 12 June 2021
  • Revise Date: 23 August 2021
  • Accept Date: 15 September 2021