JIA Lirui

Professional title:Assistant Professor

Office No.:010-51682056-218


Ph. D.  Zhejiang University, 2014-2017,  Advisor: Prof. Tianxin Cai

B. S.  China University of Mining & Technology (Beijing), 2011-2014,  Advisor: Prof. Wenguang Zhai

Professional Experience

I am currently a lecturer in the department of mathematics at Beijing Jiaotong University. My research interest lies in Analytic Number Theory

Research Field

Analytic Number Theory


2018-2019 Project funded by China Postdoctoral Science Foundation, No. 2018M631434

2020-2022 the Fundamental Research Funds for the Central Universities, No. 2020RC012

Teaching Courses



  1. Cai Tianxin, Shen Zhongyan, Jia Lirui, A congruence involving harmonic sums modulo $p^aq^b$,  International Journal of Number Theory,  2017, 13: 1083–1094.
  2. Jia Lirui, Zhai Wenguang, A weighted divisor problem, Journal of Number Theory, 2017, 178: 60–93.
  3. Jia Lirui, Cai Tianxin, Zhai Wenguang, On the sign changes of a weighted divisor problem, Acta Arithmetica, 2017,178: 135–152.}
  4. Shen Zhongyan, Jia Lirui, Some identities for multiple Hurwitz zeta values, Journal of Number Theory, 2017, 179: 256-267.
  5. Jia Lirui, Zhang Yong, Cai Tianxin, Some New Congruences Concerning Binomial Coefficients, Advances in Mathematics (China), 2018, 47: 47-64.