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arxiv: math/0407484 · v4 · submitted 2004-07-28 · 🧮 math.AG

Threefolds with big and nef anticanonical bundles I

classification 🧮 math.AG
keywords anticanonicalbundlesthreefoldsampleassociatedbasecaseclassification
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We start the classification of smooth projective threefolds X whose anticanonical bundles -K_X are big and nef but not ample. In this paper we treat the case b_2(X) = 2 and the morphism associated with the base point free linear system |-mK_X|, m>>0, is divisorial.

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