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arXiv 1902.08987math.DG
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双曲Laplacian的实Eigenvalue至多两半径定理

At Most Two Radii Theorem For A Real Eigenvalue Of The Hyperbolic Laplacian

Sergei Artamoshin

摘要:

研究了具有负常截面曲率的$(k+1)$维双曲空间$κ=-1/ρ^2$ .令$λ$是实特征值,而$f_λ (x)$是双曲拉普拉斯算子的特征函数,假定在$x_0$处为非零值。然后,只要平均值足够大,则在以$x_0$为中心的任何球面上的$f_λ(x)$的平均值允许唯一地识别对应的本征值$λ$。否则,为了唯一地识别相应的特征值,我们需要确保计算的平均值不为零,然后我们需要在以同一点$x_0$为中心的足够小的球体上计算$f_λ(x)$的附加平均值。

英文摘要:

We study a $(k+1)$-dimensional hyperbolic space of a negative constant sectional curvature $κ=-1/ρ^2$. Let $λ$ be a real eigenvalue and $f_λ (x)$ be an eigenfunction of the hyperbolic Laplacian assuming a non-zero value at $x_0$. Then the average value of $f_λ(x)$ over any sphere centered at $x_0$ allows to identify the corresponding eigenvalue $λ$ uniquely as long as that average value is large enough. Otherwise, to identify the corresponding eigenvalue uniquely, we need to make sure that the computed average value is not zero and then we need to compute an additional average value of $f_λ(x)$ over a small enough sphere centered at the same point $x_0$.

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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