Yuri Prokhorov, Miles Reid
Abstract
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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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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.
Key concepts: Fano plane, Index (typography), Mathematics, Pure mathematics, Computer science, World Wide Web