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

M. Mella
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Abstract

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

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M. Mella. 2004-02-16. Birational geometry of terminal quartic 3-folds II: the importance of beings Q-factorial. https://arxiv.org/abs/math/0402258

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