中文

Ann-范畴的栈及其态射

范畴论 2015-10-08 v2 代数几何 代数拓扑 K理论与同调

摘要

我们证明了 ann\mathit{ann}-范畴可由交叉双模(crossed bimodules)给出表示,并证明了它们之间的态射可由表示之间的特殊种类跨度(spans)来表达。更确切地说,我们证明了两个 ann\mathit{ann}-范畴之间的态射群胚等价于其表示之间的双模蝴蝶(bimodule butterflies)群胚。双模蝴蝶是蝴蝶的一种特化,即底层复形之间的一种特殊跨度或分式。

关键词

引用

@article{arxiv.1501.07592,
  title  = {Stacks of Ann-Categories and their morphisms},
  author = {Ettore Aldrovandi},
  journal= {arXiv preprint arXiv:1501.07592},
  year   = {2015}
}

备注

23 pages. One added section on the class of a stack of ann-categories and Shukla cohomology. One appendix includes an argument courtesy of T. Pirashvili showing the equivalence between Shukla and Andr\'e-Quillen cohomology for associative algebras, when Shukla cohomology is defined via a model structure on DGAs