On 2-local nonlinear surjective isometries on normed spaces and C$^*$-algebras
On 2-local nonlinear surjective isometries on normed spaces and C$^*$-algebras
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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
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发表时间:
2020
影响因子:
1
通讯作者:
Mori Michiya
中科院分区:
文献类型:
--
作者:
Mori Michiya;Semrl Peter;Mori Michiya
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