1 citations · 1 across the 5 of their papers we have counts for
5 papers
On projective varieties with strictly nef tangent bundles
Duo Li, Wenhao Ou, Xiaokui Yang
In this paper, we study smooth complex projective varieties such that some exterior power of the tangent bundle is strictly nef. We prove that such varieties…
Categorical characterization of quadrics
Duo Li
We give a characterization of smooth quadrics in terms of the existence of full exceptional collections of certain type, which generalizes a result of C.Vial for projective spaces.
On certain K-equivalent birational maps
Duo Li
We study K-equivalent birational maps which are resolved by a single blowup. Examples of such maps include standard flops and twisted Mukai flops. We give a criterion for such maps…
Characterizations of projective spaces and quadrics by strictly nef bundles
Duo Li, Xiaokui Yang
In this paper, we show that if the tangent bundle of a smooth projective variety is strictly nef, then it is isomorphic to a projective space; if a projective variety …
Classification of two-dimensional algebraic projective semigroups
Duo Li
In this article, we address the classification of smooth projective algebraic surfaces over complex numbers admitting algebraic semigroup structures. We give a full description of…