Volume no :56, Issue no: 1, March (2019)

NUMERICAL BLOW-UP TIME WITH RESPECT TO PARAMETERS FOR A REACTION DIFFUSION EQUATION

Author's: B. Yekre, Halima Nachid and Yoro Gozo
Pages: [1] - [37]
Received Date: January 26, 2019; Revised March 18, 2019
Submitted by:
DOI: http://dx.doi.org/10.18642/jmsaa_7100122030

Abstract

In this paper, we consider the following initial-boundary value problem:



where is a positive, increasing, convex function for nonnegative value of and is a positive diffusion parameter. We find some conditions under which the solution of semidiscrete form of the above problem blows up in a finite time and estimate its semidiscrete blow-up time. We also prove the convergence of the semidiscrete form blow-up time to the real one when the mesh size tends to zero. Finally, we give some numerical results to illustrate our analysis.

Keywords

diffusion parameter, reaction-diffusion equation, blow-up time, semidiscretization, convergence.