English

The first obstructions to enhancing a triangulated category

K-Theory and Homology 2018-03-08 v1 Algebraic Topology Category Theory

Abstract

In this paper we relate triangulated category structures to the cohomology of small categories and define initial obstructions to the existence of an algebraic or topological enhancement. We show that these obstructions do not vanish in an example of triangulated category without models. We also obtain cohomological characterizations of pre-triangulated DG, A-infinity, and spectral categories.

Keywords

Cite

@article{arxiv.1803.02464,
  title  = {The first obstructions to enhancing a triangulated category},
  author = {Fernando Muro},
  journal= {arXiv preprint arXiv:1803.02464},
  year   = {2018}
}

Comments

38 pages

R2 v1 2026-06-23T00:44:37.526Z