arXiv:math/0404156 Abstract

Published 2004-04-07, updated 2005-03-18Version 3

We classify all Gorenstein Fano threefolds with at worst canonical singularities for which the anticanonical system has a nonempty base locus.

Comments: 14 pages, LaTeX2e; final version, to appear in Comp. Math

Categories: math.AG

Subjects: 14J45, 14J30

Keywords: gorenstein fano threefolds, anticanonical system, base points, nonempty base locus, worst canonical singularities

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