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arXiv 0801.1884math.APmath.PR
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具有反常扩散的对流方程解的远场渐近性

Far field asymptotics of solutions to convection equation with anomalous diffusion

Lorenzo Brandolese, Grzegorz Karch

摘要:

研究了守恒律方程$\partial_t u+(-Δ)^{α/2}u+\nabla \cdot f(u)=0$的初值问题,在自然多项式增长条件下,对$α\in (1,2)$的非线性项进行了研究.我们发现这个方程的解对应于初始条件的渐近展开式为$|x|\to \infty$,在无穷远处衰减得足够快。

英文摘要:

The initial value problem for the conservation law $\partial_t u+(-Δ)^{α/2}u+\nabla \cdot f(u)=0$ is studied for $α\in (1,2)$ and under natural polynomial growth conditions imposed on the nonlinearity. We find the asymptotic expansion as $|x|\to \infty$ of solutions to this equation corresponding to initial conditions, decaying sufficiently fast at infinity.

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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