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arXiv math/0612354math.AP
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具有临界指数的Sobolev迹常数的估计及应用

Estimates for the Sobolev trace constant with critical exponent and applications

J. Fernandez Bonder, N. Saintier

摘要:

在本文中,我们找到了估计的最佳常数的临界Sobolev迹不等式$S\|u\|^p_{L^{p_*}(\partialΩ) \hookrightarrow \|u\|^p_{W^{1,p}(Ω)}$是独立的$Ω$。这一估计推广了[3]对一般$p$的估计.这里,$p_* := p(N-1)/(N-p)$是沉浸的临界指数,$N$是空间维度。然后,我们首先应用我们的结果证明了一个具有临界增长的非线性边界条件的非线性椭圆型问题正解的存在性,推广了[16]的结果。最后,我们研究了一个具有临界指数的最优设计问题。

英文摘要:

In this paper we find estimates for the optimal constant in the critical Sobolev trace inequality $S\|u\|^p_{L^{p_*}(\partialΩ) \hookrightarrow \|u\|^p_{W^{1,p}(Ω)}$ that are independent of $Ω$. This estimates generalized those of [3] for general $p$. Here $p_* := p(N-1)/(N-p)$ is the critical exponent for the immersion and $N$ is the space dimension. Then we apply our results first to prove existence of positive solutions to a nonlinear elliptic problem with a nonlinear boundary condition with critical growth on the boundary, generalizing the results of [16]. Finally, we study an optimal design problem with critical exponent.

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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