On 2-local nonlinear surjective isometries on normed spaces and C$^*$-algebras

On 2-local nonlinear surjective isometries on normed spaces and C$^*$-algebras
复制标题

关于赋范空间和 C$^*$-代数上的 2-局部非线性满射等距

DOI:
10.1090/proc/14949
复制
发表时间:
2020
影响因子:
1
通讯作者:
Mori Michiya
Mori Michiya
中科院分区:
数学3区
文献类型:
--
作者:
Mori Michiya;Semrl Peter;Mori Michiya

文献摘要

相似文献

本文证明了:如果赋范空间的闭单位球有足够多的端点,则从m到自身的每一个映射都是仿射的,且具有如下性质:对于m中的任何一对点,存在m上的一个(不一定是线性的)满射等距,且m上的两点重合.我们还考虑了在包括C-代数在内的一些特殊情形下,这种映射的满射性。引用
We prove that if the closed unit ball of a normed spacehas sufficiently many extreme points, then every mappingfrominto itself with the following property is affine: For any pair of points in, there exists a (not necessarily linear) surjective isometry onthat coincides withat the two points. We also consider surjectivity of such a mapping in some special cases including C-algebras. References