On Pseudo-Effectivity of the Second Chern Classes for Smooth Threefolds
Qihong Xie
Abstract
We prove that for smooth projective threefolds whose anticanonical divisors are nef, the second Chern classes are pseudo-effective under a weak assumption. As an application, the pseudo-effectivity of the second Chern classes implies that Kawamata's Effective Non-vanishing Conjecture holds for such threefolds.
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