收缩映射的截面范畴与模截面范畴
Sectional category versus module sectional category for retractive maps
- University of Ottawa(渥太华大学)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
构造满足 msecat(p)=2<secat(p)=3 的收缩映射,推翻 Carrasquel--Vera 猜想。
AI中文摘要:
我们构造了一个单连通有理有限型空间之间的映射,该映射具有同伦收缩且满足 $msecat(p)=2<secat(p)=3$。其目标空间是单连通十二维 CW 复形(含十一个胞腔)的有理化,并且有理双曲。这推翻了 Carrasquel--Vera 关于收缩映射的猜想。
英文摘要:
We construct a map between simply connected rational spaces of finite rational type which admits a homotopy retraction and satisfies $msecat(p)=2<secat(p)=3$. The target is the rationalization of a simply connected twelve-dimensional CW complex with eleven cells, and is rationally hyperbolic. This disproves Carrasquel--Vera's conjecture for retractive maps.