2 citations · 3 across the 4 of their papers we have counts for
4 papers
math.AG2005
Effective Non-vanishing for Algebraic Surfaces in Positive Characteristic
Qihong Xie
We give a theorem on the effective non-vanishing problem for algebraic surfaces in positive characteristic. For the Kawamata-Viehweg vanishing, the logarithmic Kollar vanishing and…
math.AG2005★ 2 cited
The Nef Curve Cone Theorem Revisited
Qihong Xie
We revisit the nef curve cone theorem and use it to reprove the pseudo-effectivity of the second Chern classes for terminal weak Q-Fano varieties.
math.AG2004★ 1 cited
On Effective Non-vanishing of Weil Divisors on Algebraic Surfaces
Qihong Xie
We give a counterexample and some conclusions for effective non-vanishing of Weil divisors on algebraic surfaces.
math.AG2004
On Pseudo-Effectivity of the Second Chern Classes for Smooth Threefolds
Qihong Xie
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 p…