Abstract

In this research work, we are interested in the discrete study of the blow-up time of the solution of certain nonlinear parabolic Partial Differential Equations (PDEs) subject to nonlinear boundary conditions. We have been able to establish the necessary and sufficient conditions under which the discrete solution of the problem blows up in a finite discrete time and, at the same time, we have given an estimate of this blow up time. Also, using a convergence study, we showed that the discrete time and solution converge respectively to the continuous time and solution when the discretization steps in space and time tend towards zero. Finally, we illustrated our analysis with graphical representations and some numerical results.

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