Liftability and vanishing theorems for Fano threefolds in positive characteristic I

[2503.10236] Liftability and vanishing theorems for Fano threefolds in positive characteristic I Skip to main content Search Submit Donate Log in Mathematics > Algebraic Geometry arXiv:2503.10236 (math) [Submitted on 13 Mar 2025 ( v1 ), last revised 25 Aug 2026 (this version, v3)] Title: Liftability and vanishing theorems for Fano threefolds in positive characteristic I Authors: Tatsuro Kawakami , Hiromu Tanaka View PDF HTML (experimental) Abstract: In our series of papers, we prove that smooth Fano threefolds in positive characteristic lift to the ring of Witt vectors. Moreover, we show that they satisfy Akizuki-Nakano vanishing, $E_1$-degeneration of the Hodge to de Rham spectral sequence, and torsion-freeness of Crystalline cohomologies. In this paper, we establish these results for the case when $|-K_X|$ is very ample and the Picard group is generated by $\omega_X$. Comments: 68 pages, v3: minor revisions Subjects: Algebraic Geometry (math.AG) MSC classes: 14J45, 13A35, 14F17 Cite as: arXiv:2503.10236 [math.AG] (or arXiv:2503.10236v3 [math.AG] for this version) https://doi.org/10.48550/arXiv.2503.10236 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Tatsuro Kawakami [ view email ] [v1] Thu, 13 Mar 2025 10:27:09 UTC (98 KB) [v2] Thu, 18 Jun 2026 09:13:23 UTC (116 KB) [v3] Tue, 25 Aug 2026 00:19:30 UTC (117 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: math.AG < prev | next > new | recent | 2025-03 Change to browse by: math References & Citations SciX Google Scholar Semantic Scholar export BibTeX citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab)

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