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arXiv 1108.5403math.FAmath.DGmath.GN
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用光滑函数代数刻画Banach-Finsler流形

Characterization of a Banach-Finsler manifold in terms of the algebras of smooth functions

J. A. Jaramillo, M. Jimenez-Sevilla, L. Sanchez-Gonzalez

摘要:

本文给出了完备$C^k$ Finsler流形$M$的弱Finsler结构由定义在$M$上的所有实值有界函数和具有有界导数的$C^k$光滑函数的赋范代数$C_b^k(M)$决定的充分条件.由此得到:(i)有限维完备$C^k$ Finsler流形$M$的Finsler结构由代数$C_b^k(M)$确定,(ii)Banach空间上可分完备$C^k$ Finsler流形$M$的弱Finsler结构由代数$C^k_b(M)$确定;(iii)在弱紧生成(WCG)Banach空间上建立的$C^k$一致可凸完备$C^k$ Finsler流形$M$的弱Finsler结构,(等价)$C^k$光滑范数由代数$C^k_b(M)$确定;(iii)具有$C^1$光滑凸函数的WCG Banach空间$X$的等距结构由代数$C_b^1(X)$确定.

英文摘要:

In this note we give sufficient conditions to ensure that the weak Finsler structure of a complete $C^k$ Finsler manifold $M$ is determined by the normed algebra $C_b^k(M)$ of all real-valued, bounded and $C^k$ smooth functions with bounded derivative defined on $M$. As a consequence, we obtain: (i) the Finsler structure of a finite-dimensional and complete $C^k$ Finsler manifold $M$ is determined by the algebra $C_b^k(M)$; (ii) the weak Finsler structure of a separable and complete $C^k$ Finsler manifold $M$ modeled on a Banach space with a Lipschitz and $C^k$ smooth bump function is determined by the algebra $C^k_b(M)$; (iii) the weak Finsler structure of a $C^k$ uniformly bumpable and complete $C^k$ Finsler manifold $M$ modeled on a Weakly Compactly Generated (WCG) Banach space with an (equivalent) $C^k$ smooth norm is determined by the algebra $C^k_b(M)$; and (iii) the isometric structure of a WCG Banach space $X$ with an $C^1$ smooth bump function is determined by the algebra $C_b^1(X)$.

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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