English

$\infty$-Dold-Kan correspondence via representation theory

Representation Theory 2025-08-05 v3 Algebraic Topology Category Theory

Abstract

We give a purely derivator-theoretical reformulation and proof of a classic result of Happel and Ladkani, showing that it occurs uniformly across stable derivators and it is then independent of coefficients. The resulting equivalence provides a bridge between homotopy theory and representation theory: indeed, our result is a derivator-theoretic version of the \infty-Dold-Kan correspondence for bounded chain complexes. Moreover, our equivalence can also be realized as an action of a spectral bimodule in the setting of universal tilting theory developed by Groth and \v{S}\v{t}ov\'i\v{c}ek.

Keywords

Cite

@article{arxiv.2211.00762,
  title  = {$\infty$-Dold-Kan correspondence via representation theory},
  author = {Chiara Sava},
  journal= {arXiv preprint arXiv:2211.00762},
  year   = {2025}
}

Comments

Exposition improved, expanded

R2 v1 2026-06-28T04:58:10.504Z