数学科学研究所
Insitute of Mathematical Science

段炼 Lian Duan

Career

2022.8-present Assistant professor, ShanghaiTech University

2019.9-2022.8 Postdoctoral fellow, Colorado State University



Education

2013.9-2019.6 Ph.D in Mathematics, University of Massachusetts, Amherst

2009.9-2013.6 Ms in Mathematics, Sichuan University

2005.9-2009.6 Bs in Mathematics, Sichuan University



  

Research Interest

My primary research interest lies in arithmetic geometry and algebraic geometry in positive characteristic. In arithmetic geometry, I am particularly interested in the l-adic representation induced by the etale cohomology of varieties and the arithmetic properties that can be read from these representations. In algebraic geometry, my research focuses on the behavers of the varieties caused by the Frobenius morphisms. I am also open to questions from other areas in algebraic number theory.


  

Selected Publications

(1). Irreducibility of geometric Galois representations and the Tate conjecture for a family of elliptic surfaces (with Xiyuan Wang),Mathematical Research Letters, Volume 28, Number 5, 1353–1378, 2021

(2). Generalizations of Alladi's formula for arithmetical semigroups (with Ning Ma and Shaoyun Yi),The Ramanujan Journal (2022)

(3). Analogues of Alladi's formula over global function fields (with Biao Wang and Shaoyun Yi), Finite Fields and Their Applications, 74 (2021)

(4)Faltings Serre method on three dimensional selfdual representations, Mathematics of Computation,  90 (2021), no. 328, 931–951

(5).Transverse lines to surfaces over finite fields (with Shamil Asgarli and Kuan-Wen Lai), manuscripta mathematica, 165 (2021), no. 1-2, 135–157.

(6). Galois action on the N\'eron-Severi group of Dwork surfaces, Journal of Number Theory, 210 (2020),  389–415.













Email:

duanlian@shanghaitech.edu.cn

Office: S414, School of Creativity & Arts





地址:上海市浦东新区华夏中路393号
邮编:201210
上海市徐汇区岳阳路319号8号楼
200031(岳阳路校区)