Singular and regular solutions of a non-linear parabolic system

Details Singular and regular solutions of a non-linear parabolic system Singular and regular solutions of a non-linear parabolic system

2003-02-11

arxiv.org/abs/math/0302129v1

Mathematics

Analysis of PDEs

16 pages

Scientific paper

10.1088/0951-7715/16/6/313

We study a dissipative nonlinear equation modelling certain features of the Navier-Stokes equations. We prove that the evolution of radially symmetric compactly supported initial data does not lead to singularities in dimensions $n\leq 4$. For dimensions $n>4$ we present strong numerical evidence supporting existence of blow-up solutions. Moreover, using the same techniques we numerically confirm a conjecture of Lepin regarding existence of self-similar singular solutions to a semi-linear heat equation.

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