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arXiv · 2211.04139

Costratification and actions of tensor-triangulated categories

Charalampos Verasdanis
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Abstract

We develop the theory of costratification in the setting of relative tensor-triangular geometry, in the sense of Stevenson, providing a unified approach to classification results of Neeman and Benson--Iyengar--Krause, while laying the foundations for future applications. In addition, we introduce and study prime localizing submodules and prime colocalizing $\mathrm{hom}$-submodules, in the first case, generalizing objectwise-prime localizing tensor-ideals. We apply our results to show that the derived category of quasi-coherent sheaves over a noetherian separated scheme is costratified.

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Charalampos Verasdanis. 2023-11-03. Costratification and actions of tensor-triangulated categories. https://arxiv.org/abs/2211.04139

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