Geodesic
Cohomological Descent for Faltings Ringed Topos
Forum of Mathematics, Sigma, Tome 12 (2024)

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Faltings ringed topos, the keystone of Faltings’ approach to p-adic Hodge theory for a smooth variety over a local field, relies on the choice of an integral model, and its good properties depend on the (logarithmic) smoothness of this model. Inspired by Deligne’s approach to classical Hodge theory for singular varieties, we establish a cohomological descent result for the structural sheaf of Faltings topos, which makes it possible to extend Faltings’ approach to any integral model, that is, without any smoothness assumption. An essential ingredient of our proof is a variation of Bhatt–Scholze’s arc-descent of perfectoid rings. 
@article{10_1017_fms_2024_26,
     author = {Tongmu He},
     title = {Cohomological {Descent} for {Faltings} {Ringed} {Topos}},
     journal = {Forum of Mathematics, Sigma},
     publisher = {mathdoc},
     volume = {12},
     year = {2024},
     doi = {10.1017/fms.2024.26},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/fms.2024.26/}
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Tongmu He. Cohomological Descent for Faltings Ringed Topos. Forum of Mathematics, Sigma, Tome 12 (2024). doi: 10.1017/fms.2024.26

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