Blow-up for Semidiscretizations of some Semilinear Parabolic Equations with a Convection Term

N’Guessan Koffi, Diabate Nabongo, Toure Kidjegbo Augustin

Abstract


This paper concerns the study of the numerical approximation for the following parabolic equations with a convection term

where p > 1.

We obtain some conditions under which the solution of the semidiscrete form of the above problem blows up in a finite time and estimate its semidiscrete blow-up time. We also prove that the semidiscrete blow-up time converges to the real one, when the mesh size goes to zero. Finally, we give some numerical experiments to illustrate ours analysis.


Keywords


Burgers' equation; semidiscretizations; discretizations; parabolic equations; convection term; blow-up; blow-up time; convergence.

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References


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