Autor:	Prokhorov, Yuri, Reid, Miles
Rok vydání:	2012
Předmět:	Mathematics - Algebraic Geometry 14J45 14J30 14E30
Druh dokumentu:	Working Paper
Popis:	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. Comment: Minor changes, mostly biographical, to bring into line with the published version in Minimal Models and Extremal Rays (Kyoto 2011), Advanced Studies in Pure Mathematics 70, 2016, pp. 397--420
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1203.0852 Zobrazit plný text záznamu View this record from Arxiv