Extension of Morphisms Defined on a Divisor.
Divisors of Bielliptic Surfaces and Ebeddings in IP4.
Deformations of multiple fibres.
The adjunction mapping and hyperelliptic divisors on a surface.
Strictly nef divisors and Fano threefolds.
The Picard Group of a Quasi-Bundle.
Multiple fibres of a morphism.
Threefolds with nef anticanonical bundles.
In this paper we study the global structure of projective threefolds X whose anticanonical bundle -KX is nef.
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