Construction and stability of a blow up solution for a nonlinear heat equation with a gradient term

Details Construction and stability of a blow up solution for a nonlinear heat equation with a gradient term Construction and stability of a blow up solution for a nonlinear heat equation with a gradient term

2011-02-27

arxiv.org/abs/1102.5537v1

Mathematics

Analysis of PDEs

18 pages

Scientific paper

We consider a nonlinear heat equation with a gradient term. We construct a blow-up solution for this equation with a prescribed blow-up profile. For that, we translate the question in selfsimilar variables and reduce the problem to a finite dimensional one. We then solve the finite dimensional problem using index theory. The interpretation of the finite dimensional parameters allows us to derive the stability of the constructed solution with respect to initial data.

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