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arXiv · 1310.5961

Ample Weil divisors

Alberto Chiecchio·Stefano Urbinati
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Abstract

We define and study positivity (nefness, amplitude, bigness and pseudo-effectiveness) for Weil divisors on normal projective varieties. We prove various characterizations, vanishing and non-vanishing theorems for cohomology, global generation statements, and a result related to log Fano.

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Alberto Chiecchio, Stefano Urbinati. 2015-05-05. Ample Weil divisors. https://arxiv.org/abs/1310.5961

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