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arXiv 1702.02801math.DG
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Laplacian特征函数公共零点平均数的估计

An estimate for the average number of common zeros of Laplacian eigenfunctions

Dmitri Akhiezer, Boris Kazarnovskii

摘要:

在维数为$n$的紧致黎曼流形$M$上,我们考虑Laplace算子$Δ$的本征函数$n$,其本征值为$λ$。如果$M$是均匀的紧李群下保持度量,然后我们证明了$n$特征函数的公共零点的平均数不超过$c(n)λ^{n/2}{\rm vol}\,M$,从著名的外尔定律的表达。此外,如果各向同性表示是不可约的,则估计变成相等。明确给出了常数$c(n)$。证明的方法是基于应用克罗夫顿公式的领域。

英文摘要:

On a compact Riemannian manifold $M$ of dimension $n$, we consider $n$ eigenfunctions of the Laplace operator $Δ$ with eigenvalue $λ$. If $M$ is homogeneous under a compact Lie group preserving the metric then we prove that the average number of common zeros of $n$ eigenfunctions does not exceed $c(n)λ^{n/2}{\rm vol}\,M$, the expression known from the celebrated Weyl's law. Moreover, if the isotropy representation is irreducible, then the estimate turns into equality. The constant $c(n)$ is explicitly given. The method of proof is based on the application of Crofton's formula for the sphere.

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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