arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1409.4574math.AG
收藏

环有限空间

Ringed Finite Spaces

Fernando Sancho de Salas

摘要:

环化有限空间是其基础拓扑空间是有限的戴环空间。有环有限空间范畴完全忠实地包含有限拓扑空间范畴和仿射概型范畴。任何赋以有限开覆盖的戴环空间都产生一个环有限空间。本文研究了环化有限空间的同伦(推广了有限拓扑空间的同伦)和环化有限空间上的拟凝聚层。这导致设置和发展的基本概念环有限空间和态射,作为仿射,示意,半分离等,侧重于它的上同调性质。最后,我们看到如何嵌入范畴的拟紧和拟分离计划的局部化的范畴的有限戴环空间。

英文摘要:

A ringed finite space is a ringed space whose underlying topological space is finite. The category of ringed finite spaces contains, fully faithfully, the category of finite topological spaces and the category of affine schemes. Any ringed space, endowed with a finite open covering, produces a ringed finite space. We make a study of the homotopy of ringed finite spaces (that extends the homotopy of finite topological spaces) and a study of the quasi-coherent sheaves on a ringed finite space. This leads to set and develop basic notions on ringed finite spaces and morphisms, as being affine, schematic, semi-separated, etc, focusing on its cohomological properties. Finally, we see how to embed the category of quasi-compact and quasi-separated schemes in a localization of the category of finite ringed spaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑