arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1105.3153math.DGmath-phmath.MPmath.SP
收藏

$\mathbb{R}^7$的2-球面上的Cauchy-Riemann不等式

Cauchy-Riemann inequalities on 2-spheres of $\mathbb{R}^7$

Isabel M. C. Salavessa

摘要:

证明了2-球面$\mathbb{S}^2$上任意一对光滑函数$(f,h)$的积分Cauchy-Riemann不等式成立,等式成立当且仅当$f$和$h$是相关的$λ_1$ -特征函数.我们将这个不等式推广到4元组的函数,只适用于一个合适的非零有限维函数空间的$L^2$ -正交补。因此,我们证明了2-球不是$Ω$ -稳定的表面平行平均曲率在$\mathbb{R}^7$的关联校准$Ω$。

英文摘要:

We prove that an integral Cauchy-Riemann inequality holds for any pair of smooth functions $(f,h)$ on the 2-sphere $\mathbb{S}^2$, and equality holds iff $f$ and $h$ are related $λ_1$-eigenfunctions. We extend such inequality to 4-tuples of functions, only valid on the $L^2$-orthogonal complement of a suitable nonzero finite dimensional space of functions. As a consequence we prove that 2-spheres are not $Ω$-stable surfaces with parallel mean curvature in $\mathbb{R}^7$ for the associative calibration $Ω$.

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。

↑