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math.AG2020

Bounding cohomology on a smooth projective surface with Picard number 2

Sichen Li

The following conjecture arose out of discussions between B. Harbourne, J. Roé, C. Cilberto and R. Miranda: for a smooth projective surface there exists a positive constant $c_…

math.AG2020

A note on Kawaguchi-Silverman conjecture

Sichen Li, Yohsuke Matsuzawa

We collect some results on endomorphisms on projective varieties related with the Kawaguchi-Silverman conjecture. We discuss certain condition on automorphism groups of projective…

math.AG2019

Derived length of zero entropy groups acting on projective varieties in arbitrary characteristic -- A remark to a paper of Dinh-Oguiso-Zhang

Sichen Li

Let be a projective variety of dimension over an algebraically closed field of arbitrary characteristic. We prove a Fujiki-Lieberman type theorem on the structure of th…

math.AG2019

Free abelian group actions on normal projective varieties: sub-maximal dynamical rank case

Fei Hu, Sichen Li

Let be a normal projective variety of dimension and an abelian group of automorphisms such that all elements of are of positive entropy. Di…

math.AG2018

Bounding cohomology on a smooth projective surface

Sichen Li

The following conjecture arose out of discussions between B. Harbourne, J. Roé, C. Cilberto and R. Miranda: for a smooth projective surface there exists a positive constant $c_…

math.AG2018

A note on a smooth projective surface with Picard number 2

Sichen Li

We characterize the integral Zariski decomposition of a smooth projective surface with Picard number 2 to partially solve a problem of B. Harbourne, P. Pokora, and H. Tutaj-Gasinsk…