Cech cohomology是sheaf cohomology的一种具体实现方式;严格地来说,当你取的sheaf是constant sheaf R的...
[关键词]Cech 上同调; 单纯形方法; 单纯复形 [中图分类号] O153.3 [文献标志码] A doi :10.3969/j.issn.2096-8566.2021.01.007[文章编号]2096-8566(2021)01-0039-03 The Simplicial Complex Representation of The Cech Cohomology HUANG Hai 1 , Wang Nan 2 , YANG Hai-Bo...
因为在每个pn的邻域中给定的主部就是问题的解,但在全局中这个问题可以导出Cech上同调。
Sheaf cohomologyToric varietiesIn this text, we generalize tech cohomology to sheaves 3 with values in blue B-modules where B is a blueprint with -1. If X is an object of the underlying site, then the cohomology sets H-iota(X,F) turn out to be blue B-modules. For a locally free ...
For the configuration space X_N of N points in the plane, connecting points of the plane with chords is a decoration and the sheaf of log differentials over such spaces forms an emerald. We introduce a relaxed form of Cech cohomology whereby intersections are defined up to equivalence. Two ...
sheaf theorysheaf cohomologyThe present paper is a continuation of our work on curved finitary spacetime sheaves of incidence algebras and treats the latter along Cech cohomological lines. In particular, we entertain the possibility of constructing a non-trivial de Rham complex on these finite ...
这个Čech cohomology是对什么层取的呢?正是这locally trivial object的自同构。在许多情形,它就是...