中文

有限同调维度的扩展模

交换代数 2026-02-11 v2

摘要

我们探讨了同调维度的有限性对 Ext 模块的影响,聚焦于射影维数、单射维数及其 Gorenstein 对等概念。在此方向上,我们建立了若干同调维数的有限性标准。在满足这些有限性条件后,本文的主要结果是关于当由规范模块张量化时,某些 Ext 模块的新型对偶性。

关键词

引用

@article{arxiv.2504.15224,
  title  = {On Extension modules of finite homological dimension},
  author = {Rafael Holanda and Victor H. Jorge-Pérez and Victor D. Mendoza-Rubio},
  journal= {arXiv preprint arXiv:2504.15224},
  year   = {2026}
}

备注

14 pages. Shorter version with minor corrections. Also, an addendum has been added mentioning that some posed questions have been resolved by Kaito Kimura (arXiv:2508.12843)