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20192025
most citedFinite torsors on projective schemes defined over a discrete valuation ring

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math.AC2024

Fiber criteria for flatness and homomorphisms of flat affine group schemes

Phùng Hô Hai, Hop D. Nguyen, João Pedro dos Santos

A very useful result concerning flatness in Algebraic Geometry is EGA's ``fiber'' criterion. We propose similar fiber criteria to verify flatness of a module while avoiding ``finit…