A-hypergeometric series and the Hasse-Witt matrix of a hypersurface
classification
🧮 math.AG
keywords
hasse-wittmatrixhypersurfaceproofseriesa-hypergeometriccertaincombinatorial
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We give a short combinatorial proof of the generic invertibility of the Hasse-Witt matrix of a projective hypersurface. We also examine the relationship between the Hasse-Witt matrix and certain $A$-hypergeometric series, which is what motivated the proof.
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