English

The Monadic Tower for $\infty$-Categories

Algebraic Topology 2021-11-23 v3 Category Theory

Abstract

Every right adjoint functor between presentable \infty-categories is shown to decompose canonically as a coreflection, followed by, possibly transfinitely many, monadic functors. Furthermore, the coreflection part is given a presentation in terms of a functorial iterated colimit. Background material, examples, and the relation to homology localization and completion are discussed as well.

Keywords

Cite

@article{arxiv.2104.01816,
  title  = {The Monadic Tower for $\infty$-Categories},
  author = {Lior Yanovski},
  journal= {arXiv preprint arXiv:2104.01816},
  year   = {2021}
}

Comments

25 pages. Moved example 4.1 to the introduction, replaced remark 2.15 with a more detailed discussion and made minor corrections. Final version to appear in JPAA

R2 v1 2026-06-24T00:51:01.371Z