74 citations · 267 across the 68 of their papers we have counts for
6 papers · 1 filter
Characterization of the 4-canonical birationality of algebraic 3-folds, II
Meng Chen, Qi Zhang
For nonsingular projective 3-folds (of general type) whose geometric genus is , the birationality of the fourth canonical map was…
On a question of Demailly-Peternell-Schneider
Meng Chen, Qi Zhang
This note aims to give an affirmative answer to an open question posed by Demailly-Peternell-Schneider [DPS] in 2001 and recently by Peternell [P] again. Let be a su…
On projective varieties with nef anticanonical divisors
Qi Zhang
We prove a structure theorem for projective varieties with nef anticanonical divisors.
Rational connectedness of log -Fano varieties
Qi Zhang
In this paper, we give an affirmative answer to a conjecture in the Minimal Model Program. We prove that log -Fano varieties of dim are rationally connected. We also study t…
Holomorphic forms on threefolds
Tie Luo, Qi Zhang
Two conjectures relating the Kodaira dimension of a smooth projective variety and existence of number of nowhere vanishing 1-forms on the variety are proposed and verified in dimen…
On the geometry of the Hilbert schemes of points in the projective plane
Wei-ping Li, Zhenbo Qin, Qi Zhang
We classify minimal-degree curves in the Hilbert schemes of points on algebraic surfaces. When the algebraic surface is the projective plane, the nef cone and a flip structure of t…