Yigeng Zhao 赵以庚

School of Science
Westlake University
Shilongshan Road 18, Cloud Town, Xihu District
310024, Hangzhou, China

office: Building 4, 400B
email: zhaoyigeng "at" westlake dot edu.cn

I am an E Fund endowed assisant professor at Westlake University.

Research Interests

Number theory and algebraic geometry, in particular: étale duality, class field theory, l-adic sheaves, p-adic cohomology.

Research Activities

  • Seminar on algebraic geometry and ramification (Zoom)
  • Seminar on number theory

    • Papers and Preprints

  • Duality for relative logarithmic de Rham-Witt sheaves on semistable schemes Documenta Math. 23 (2018), p.1925-1967.
  • Duality for relative logarithmic de Rham-Witt sheaves and wildly ramified class field theory over finite fields Compositio Math. 154(6) (2018), p.1306-1331 (with Uwe Jannsen and Shuji Saito).
  • Higher ideles and class field theory Nagoya Math. Journal 236(special volume) (2019), p.214-250(with Moritz Kerz).
  • Characteristic class and ε-factor of an étale sheaf Transactions of the American Mathematical Society 373(10) (2020), p6887-6927 (with Naoya Umezaki and Enlin Yang).
  • On the relative twist formula of l-adic sheaves Acta Mathematica Sinica-English Series 37 (2021), p73-94(with Enlin Yang).
  • Cohomological Milnor formula and Saito's conjecture on characteristic classes Preprint (2022), p30(with Enlin Yang).
  • Special values of spectral zeta functions of graphs and Dirichlet L-functions Preprint (2022), p18(with Bing Xie and Yongqiang Zhao).

    • Past Teaching

  • Seminar über p-adische Analysis , Program, Literatur, SoSe 2019.
  • Proseminar: Darstellungstheorie endlicher Gruppen, Program, together with Prof.Dr.Moritz Kerz and Morten Lüders , WiSe 2018/19.
  • Proseminar: Angewandte Lineare Algebra, together with Prof.Dr.Moritz Kerz and Morten Lüders , SoSe 2018.
  • Seminar on linear algebraic groups, together with Prof.Dr.Uwe Jannsen, WiSe 2017/18.
  • Seminar zu Modulformen, together with Prof.Dr.Moritz Kerz and Morten Lüders , WiSe 2017/18.
  • Seminar on abelian varieties, together with Prof.Dr.Uwe Jannsen, SoSe 2017.
  • Seminar über quadratische Formen Gruppe 1,Gruppe 2, together with Prof.Dr.Moritz Kerz and Morten Lüders , SoSe 2017.
  • Higher Invariants Oberseminar on moduli problems HIOB5, together with Johann Haas and Morten Lüders , SoSe 2017.
  • Examenskurs Algebra, together with Veronika Ertl, WiSe 2016/17.
  • Exercise: Analysis III für Physiker bei Prof. Dr. Helmut Abels, WiSe 2016/17.
  • Seminar on local class field theory,together with Patrick Forré, SoSe 2016.