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arXiv 1009.3573math.AP
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结点集的Hausdorff测度的下界

Lower bounds on the Hausdorff measure of nodal sets

Christopher D. Sogge, Steve Zelditch

摘要:

设$\ncal_{ϕ_λ}$是光滑黎曼流形上本征值$λ^2$的$Δ$ -本征函数$ϕ_λ$的节点超曲面.我们证明了它的曲面测度的下界:$\hcal^{n-1}(\ncal_{ϕ_λ}) \geq C λ^{\frac74-\frac{3n}4} $。最佳先验下界似乎是$e^{- C λ}$。

英文摘要:

Let $\ncal_{ϕ_λ}$ be the nodal hypersurface of a $Δ$-eigenfunction $ϕ_λ$ of eigenvalue $λ^2$ on a smooth Riemannian manifold. We prove the following lower bound for its surface measure: $\hcal^{n-1}(\ncal_{ϕ_λ}) \geq C λ^{\frac74-\frac{3n}4} $. The best prior lower bound appears to be $e^{- C λ}$.

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