Cohomology of generalized configuration spaces
Cohomology of generalized configuration spaces
复制标题
广义配置空间的上同调
DOI:
10.1112/s0010437x19007747
复制
发表时间:
2018
影响因子:
1.8
通讯作者:
D. Petersen
中科院分区:
文献类型:
--
作者:
D. Petersen
Let $X$ be a topological space. We consider certain generalized configuration spaces of points on $X$, obtained from the cartesian product $X^{n}$ by removing some intersections of diagonals. We give a systematic framework for studying the cohomology of such spaces using what we call ‘twisted commutative dg algebra models’ for the cochains on $X$. Suppose that $X$ is a ‘nice’ topological space, $R$ is any commutative ring, $H_{c}^{\bullet }(X,R)\rightarrow H^{\bullet }(X,R)$ is the zero map, and that $H_{c}^{\bullet }(X,R)$ is a projective $R$-module. We prove that the compact support cohomology of any generalized configuration space of points on $X$ depends only on the graded $R$-module $H_{c}^{\bullet }(X,R)$. This generalizes a theorem of Arabia.
影响因子:
1.8
作者:
Birgit Richter;Steffen Sagave
通讯作者:
Steffen Sagave