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arXiv 2012.01951math.AP
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一类强退化二阶椭圆型方程的多重解

Multiple solutions for some strongly degenerate second order elliptic equations

João R. Santos Junior, Gaetano Siciliano

摘要:

考虑一类有界区域中的边值问题,该边值问题涉及$$L(u)=-\textrm{div} (a(x)\nabla u)$$形式的退化算子和适当的非线性项$f$ .函数$a$在$Ω$的光滑1-余维子流形上为零,这里不允许它是$C^{2}$。通过使用加权索伯列夫空间我们仍然能够找到在迹意义下在$a$为零的集合上为零的解的存在性。

英文摘要:

We consider a boundary value problem in a bounded domain involving a degenerate operator of the form $$L(u)=-\textrm{div} (a(x)\nabla u)$$ and a suitable nonlinearity $f$. The function $a$ vanishes on smooth 1-codimensional submanifolds of $Ω$ where it is not allowed to be $C^{2}$. By using weighted Sobolev spaces we are still able to find existence of solutions which vanish, in the trace sense, on the set where $a$ vanishes.

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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