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Lisse extensions of weaves

Algebraic Geometry 2025-04-07 v2 Algebraic Topology

Abstract

Any sheaf theory on schemes extends canonically to Artin stacks via a procedure called lisse extension. In this paper we show that lisse extension preserves the formalism of Grothendieck's six operations: more precisely, the lisse extension of a weave on schemes determines a weave on (higher) Artin stacks. The setup is general enough to apply to the stable motivic homotopy category with the six functor formalism of Voevodsky-Ayoub-Cisinski-Deglise, for instance, and is not specific to algebraic geometry: for example, it also applies to sheaves of spectra on topological stacks.

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Cite

@article{arxiv.2501.04114,
  title  = {Lisse extensions of weaves},
  author = {Adeel A. Khan},
  journal= {arXiv preprint arXiv:2501.04114},
  year   = {2025}
}

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Draft, 54 pages