# Publications and Preprints

- Fibration formula for the characteristic class of a constructible sheaf(with Yigeng Zhao),to appear soon.
- Motivic nearby cycle in positive characteristic(with Fangzhou Jin),ArXiv
- Kunneth formulas for motives and additivity of traces (with Fangzhou Jin).
Advances in Mathematics 376 (2021) 107446，83 pages.
- Characteristic class and the epsilon factor of an etale sheaf (with Naoya Umezaki and Yigeng Zhao),
Trans.Amer.Math.Soc. 373 (2020):6887-6927.
- Conjectures on the twist formula of l-adic sheaves (with Yigeng Zhao), Acta Mathematica Sinica, 2021, Vol.37, No.1, pp.73-94. The first part of this paper is here: Online First
- Motivic singular support (with Denis-Charles Cisinski), preprint.
- Relative singular support and the semi-continuity of characteristic cycles for etale sheaves (with Haoyu Hu), Selecta Mathematica, Volume 24,Issue 3,(2018):2235-2273. PDF
- Semi-continuity for total dimension divisors of etale sheaves (with Haoyu Hu), International Journal of Mathematics, Volume 28, Issue 01, 2017. PDF
- Logarithmic version of the Milnor formula, Asian Journal of Mathematics, Volume 21, No. 3 (2017). PDF
- Derivatives of Siegel modular forms and modular connections, Manuscripta Mathematica, January 2015, Volume 146, Issue 1, pp 65–84(with Linsheng Yin). PDF
- On the GL(r)×GL(r+s) ×GL(s) convolution, Journal of Number Theory 134, 2014:130-141(with Li Sun). PDF

**Conference Publications**

- Logarithmic version of the Milnor formula (research announcement), to be published in RIMS Kokyuroku Besstasu, Algebraic Number Theory and Related Topics 2014. PDF

**Lecture Notes**

- A blow up formula for Gysin pull-back. PDF (Appendix to the paper: Characteristic class and the epsilon factor of an etale sheaf)
- Talks on the epsilon factors of l-adic etale sheaves. Jussieu SFB
- Research statement: Geometric Ramification Theory. PDF