English

2-Segal objects and algebras in spans

Algebraic Topology 2019-05-17 v1 Category Theory

Abstract

We define a category parameterizing Calabi-Yau algebra objects in an infinity category of spans. Using this category, we prove that there are equivalences of infinity categories relating, firstly: 2-Segal simplicial objects in C to algebra objects in Span(C); and secondly: 2-Segal cyclic objects in C to Calabi-Yau algebra objects in Span(C).

Keywords

Cite

@article{arxiv.1905.06671,
  title  = {2-Segal objects and algebras in spans},
  author = {Walker H. Stern},
  journal= {arXiv preprint arXiv:1905.06671},
  year   = {2019}
}

Comments

56 pages

R2 v1 2026-06-23T09:08:33.239Z