Five types of blow-up in a semilinear fourth-order reaction-diffusion equation: an analytic-numerical approach

Details Five types of blow-up in a semilinear fourth-order reaction-diffusion equation: an analytic-numerical approach Five types of blow-up in a semilinear fourth-order reaction-diffusion equation: an analytic-numerical approach

2009-01-27

arxiv.org/abs/0901.4307v1

Mathematics

Analysis of PDEs

41 pages, 27 figures

Scientific paper

Five types of blow-up patterns that can occur for the 4th-order semilinear parabolic equation of reaction-diffusion type $$ u_t= -\Delta^2 u + |u|^{p-1} u \quad {in} \quad \ren \times (0,T), p>1, \quad \lim_{t \to T^-}\sup_{x \in \ren} |u(x,t)|= +\iy, $$ are discussed. For the semilinear heat equation $u_t= \Delta u+ u^p$, various blow-up patterns were under scrutiny since 1980s, while the case of higher-order diffusion was studied much less, regardless a wide range of its application.

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