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arXiv · 1203.0852

On Q-Fano threefolds of Fano index 2

Yuri Prokhorov·Miles Reid
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Abstract

We show that, for a Q-Fano threefold X of Fano index 2, the inequality dim |-1/2K_X| <= 4 holds with a single well understood family of varieties having dim |-1/2K_X| = 4.

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Yuri Prokhorov, Miles Reid. 2016-06-27. On Q-Fano threefolds of Fano index 2. https://arxiv.org/abs/1203.0852

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