Comments on Fano varieties with torsion in H³(X, \mathbb Z) by J. C. Ottem and J. V. Rennemo

2023/11/09 by Janós Kollár, Kollár, János
Arts and Humanities · Mathematics · Physics and Astronomy · #Algebraic Geometry (math.AG) #Algebraic Geometry and Number Theory #Black Holes and Theoretical Physics #Caribbean and African Literature and Culture #FOS: Mathematics

paper · pdf · doi:10.48550/arxiv.2311.05399

openalex publication_date 2023/11/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Ottem and Rennemo constructed a Fano 4-fold with torsion in H₂(X, \mathbb Z). We simplify the computation of H₂(X, \mathbb Z) and also exhibit 2 lines L', L''⊂ X such that L'- L'' generates the torsion.

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