arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.11363math.DGmath.APmath.CAmath.MGmath.SP
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量级与谱几何

The magnitude and spectral geometry

Leopold-Franzens-Universität Innsbruck(因斯布鲁克大学);Maxwell Institute for Mathematical Sciences and Department of Mathematics, Heriot-Watt University(赫瑞-瓦特大学数学科学麦克斯韦研究所与数学系);Centre for Mathematical Sciences Lund University(隆德大学数学科学中心)

Heiko Gimperlein, Magnus Goffeng, Nikoletta Louca

AI总结:

该研究针对带边光滑流形上的Leinster量级概念,证明其在大参数下良定义且可亚纯延拓,给出含几何量的渐近展开,并验证了Leinster-Willerton猜想的渐近形式,拓展了谱几何相关研究。

摘要:

受$\u200b\boldsymbol{\u200bR}^2$中单位圆盘相关开放问题的启发,我们研究了带边任意维光滑流形上Leinster量级概念的几何意义。对于一大类距离函数(包括欧氏空间的嵌入子流形与满足某技术条件的黎曼流形),我们证明量级函数在$R\u200b\boldsymbol{\u200b\backslash}gg 0$时良定义,且可亚纯延拓到$\u200b\boldsymbol{\u200bC}$中的扇形区域。在半经典极限$R\u200b\boldsymbol{\u200b\backslash}to\u200b\boldsymbol{\u200b\backslash}infty$下,量级函数存在渐近展开,可确定体积、表面积与广义曲率积分,低阶项通过黑盒计算机代数计算。我们开启了对谱几何中经典问题的量级类比研究,并证明了Leinster-Willerton猜想的一个渐近变体。

英文摘要:

We study the geometric significance of Leinster's notion of magnitude for a smooth manifold with boundary of arbitrary dimension, motivated by open questions for the unit disk in $\mathbb{R}^2$. For a large class of distance functions, including embedded submanifolds of Euclidean space and Riemannian manifolds satisfying a technical condition, we show that the magnitude function is well defined for $R\gg 0$ and admits a meromorphic continuation to sectors in $\mathbb{C}$. In the semiclassical limit $R \to \infty$, the magnitude function admits an asymptotic expansion, which determines the volume, surface area and integrals of generalized curvatures. Lower-order terms are computed by black box computer algebra. We initiate the study of magnitude analogues to classical questions in spectral geometry and prove an asymptotic variant of the Leinster-Willerton conjecture.

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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