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arXiv math/9301218math.AP
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由里奇流导出的多孔介质方程的一个新结果

A new result for the porous medium equation derived from the Ricci flow

Lang-Fang Wu

摘要:

给定$\Bbb R^2, $与一个“好”的完整的度量,我们表明,唯一的解决方案的里奇流接近孤子在时间无穷大。孤立子是里奇流的解,它只以单态运动。当$m$为零时,$\Bbb R^2$上的里奇流是多孔介质方程的极限情况。因此,在里奇流中的结果可以被解释为关于初始数据的充分条件,其保证多孔介质方程在整个平面上的相应唯一解渐近地表现为"孤子解“。

英文摘要:

Given $\Bbb R^2, $ with a ``good'' complete metric, we show that the unique solution of the Ricci flow approaches a soliton at time infinity. Solitons are solutions of the Ricci flow, which move only by diffeomorphism. The Ricci flow on $\Bbb R^2$ is the limiting case of the porous medium equation when $m$ is zero. The results in the Ricci flow may therefore be interpreted as sufficient conditions on the initial data, which guarantee that the corresponding unique solution for the porous medium equation on the entire plane asymptotically behaves like a ``soliton-solution''.

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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