English

Standard $t$-structures

Category Theory 2025-04-11 v1 Algebraic Topology

Abstract

We provide a general construction of induced tt-structures, that generalizes standard tt-structures for \infty-categories of sheaves. More precisely, given a presentable \infty-category X\mathcal{X} and a presentable stable \infty-category E\mathcal{E} equipped with an accessible tt-structure τ=(E0,E0)\tau = (\mathcal{E}_{\geq 0}, \mathcal{E}_{\leq 0}), we show that XE\mathcal{X} \otimes \mathcal{E} is equipped with a canonical tt-structure whose coconnective part is given in XE0\mathcal{X} \otimes \mathcal{E}_{\leq 0}. When X\mathcal{X} is an \infty-topos, we give a more explicit description of the connective part as well.

Keywords

Cite

@article{arxiv.2504.07473,
  title  = {Standard $t$-structures},
  author = {Peter J. Haine and Mauro Porta and Jean-Baptiste Teyssier},
  journal= {arXiv preprint arXiv:2504.07473},
  year   = {2025}
}

Comments

Comments very welcome. 11 pages

R2 v1 2026-06-28T22:53:14.530Z