English

A new model for dg-categories

Category Theory 2023-02-02 v1 Algebraic Geometry K-Theory and Homology

Abstract

In this document, we develop a new model for the category of dg-categories. Following Rezk's example in the case of classic Segal spaces, we define dg-Segal spaces: functors between free dg-categories of finite type and simplicial spaces to which we add certain properties. We define also complete dg-Segal spaces, and make their relationship to classic Segal spaces explicit. With the help of two new hypercover constructions, and up to a certain hypothesis, we prove that there exists an equivalence between the homotopy category of dg-categories and the homotopy category of functors defined above with a model structure making the complete dg-Segal spaces into its fibrant objects.

Keywords

Cite

@article{arxiv.2302.00430,
  title  = {A new model for dg-categories},
  author = {Elena Dimitriadis Bermejo},
  journal= {arXiv preprint arXiv:2302.00430},
  year   = {2023}
}

Comments

PhD manuscript, supervised by Bertrand To\"en and Fr\'ed\'eric D\'eglise

R2 v1 2026-06-28T08:29:04.112Z