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arXiv 0901.4307math.AP
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半线性四阶反应扩散方程的五类爆破:解析-数值方法

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

V. A. Galaktionov

摘要:

讨论了反应扩散型四阶半线性抛物型方程$$ u_t= -Δ^2 u + |u|^{p-1} u \quad {in} \quad \ren \times (0,T), p>1, \quad \lim_{t \to T^-}\sup_{x \in \ren} |u(x,t)|= +\iy, $$的五种爆破模式。对于半线性热方程$u_t= Δu+ u^p$,自20世纪80年代以来,各种各样的爆破模式受到关注,而高阶扩散的情况下,研究得很少,尽管它的应用范围很广。

英文摘要:

Five types of blow-up patterns that can occur for the 4th-order semilinear parabolic equation of reaction-diffusion type $$ u_t= -Δ^2 u + |u|^{p-1} u \quad {in} \quad \ren \times (0,T), p>1, \quad \lim_{t \to T^-}\sup_{x \in \ren} |u(x,t)|= +\iy, $$ are discussed. For the semilinear heat equation $u_t= Δu+ u^p$, 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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