中文

关于Hadamard空间的一种弱拓扑及其应用

泛函分析 2025-03-11 v4 一般拓扑

摘要

我们研究Hadamard空间中已有的弱序列收敛概念是否能由某个拓扑诱导。我们在所谓的弱真Hadamard空间上给出了答案。我们提出了对偶空间的概念,并证明我们的弱拓扑与对偶空间在Hilbert空间情形下与标准情形一致。此外,我们引入了测地线段空间及相应的弱拓扑,并证明该空间与其底层Hadamard空间同胚。作为其应用,我们证明存在一条测地线段,它充当测地可微函数的最速下降方向,该函数的测地导数满足特定性质。最后,我们将经典泛函分析中的若干结果推广到Hadamard空间的框架,并将我们的拓扑与其他已有的弱拓扑概念进行比较。

关键词

引用

@article{arxiv.2204.01461,
  title  = {On a weak topology for Hadamard spaces and its applications},
  author = {Arian Bërdëllima},
  journal= {arXiv preprint arXiv:2204.01461},
  year   = {2025}
}

备注

The previous version was withdrawn because of dissent expressed from a former co-author of a different but related draft to the withdrawn paper. The current version is a presentation of the main results from author's PhD thesis (Chapter 3) with certain improvements and literature updates