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arXiv:math/0402258 [math.AG]AbstractReferencesReviewsResources

Birational geometry of terminal quartic 3-folds II: the importance of beings Q-factorial

M. Mella

Published 2004-02-16Version 1

The paper explores the birational geometry of terminal quartic 3-folds. In doing this I develop a new approach to study maximal singularities with positive dimensional centers. This allows to determine the pliability of a Q-factorial quartic with ordinary double points, and it shows the importance of Q-factoriality in the context of birational geometry of uniruled 3-folds

Comments: 16 pages, AMSLaTeX2e, this is the final version of a preprint that circulated in 2002 and benefited much from referee suggestions. To appear in Math. Ann
Categories: math.AG
Subjects: 14E07, 14J30, 14E30
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