中文

正单位球连续函数无限处消失情形下的Tingley问题的一个变体

泛函分析 2026-01-27 v1

摘要

S(C0(X))+S(C_0(X))^+S(C0(Y))+S(C_0(Y))^+分别为C0(X)C_0(X)C0(Y)C_0(Y)正单位球的正部,其中XXYY为局部紧致Hausdorff空间。我们证明了从S(C0(X))+S(C_0(X))^+S(C0(Y))+S(C_0(Y))^+的每个满射等距必为由XXYY之间的homeomorphism诱导的构成算子。作为结果,这样的映射可扩展为从C0(X)C_0(X)C0(Y)C_0(Y)的满射实线性等距。我们还 characterize了正单位球上的满射相位等距。

关键词

引用

@article{arxiv.2601.17704,
  title  = {A variant of Tingley's problem for positive unit spheres of continuous functions that vanish at infinity},
  author = {Kazuki Ezumi and Min-Ruei Lin and Takeshi Miura},
  journal= {arXiv preprint arXiv:2601.17704},
  year   = {2026}
}

备注

10 pages