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arXiv · 2409.20382

Non-representable six-functor formalisms

Chirantan Chowdhury·Alessandro D'Angelo
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Abstract

In this article, we study the properties of motivic homotopy category $\mathcal{SH}_{\operatorname{ext}}(\mathcal{X})$ developed by Chowdhury and Khan-Ravi for $\mathcal{X}$ a Nis-loc Stack. In particular, we compare the above construction with Voevodsky's original construction using NisLoc topology. Using the techniques developed by Liu-Zheng and Mann's notion of $\infty$-category of correspondences and abstract six-functor formalisms, we also extend the exceptional functors and extend properties like projection formula, base change and purity to the non-representable situation.

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Chirantan Chowdhury, Alessandro D'Angelo. 2024-09-30. Non-representable six-functor formalisms. https://arxiv.org/abs/2409.20382

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