- On the semi-continuity of characteristic cycles for etale sheaves, 2019.09.25,IMPAN at Warsaw, Conference:Wild Ramification and Irregular Singularities. Note
- On the characteristic class of a constructible etale sheaf, 2019.09.02, BICMR.
- Twist formula of epsilon factors of constructible etale sheaves, 2019.08.29, KAIST.
- Twist formula of epsilon factors of constructible étale sheaves, 2019.06.20, Tunisian Academy Beit al-Hikma, Carthage, Tunisia.
- On the total characteristic class, 2019.05.06, Young Mathematicians Academic Forum, at USTC, Hefei Anhui, China.
- Characteristic class and the epsilon factor of an etale sheaf, 2019.01.03, Tsinghua University.
- Twist formula of epsilon factors of constructible étale sheaves, 2018.09.14, Department of Mathematical Sciences, University of Tokyo, Japan. Note.
Conference: Arithmetic Geometry : l-adic and p-adic aspects
- K-theory, determinant and de Rham epsilon factors, 2018.08.10, Universität Regensburg, M311. Note
- Riemann-Hilbert Correspondence in positive characteristic, 2018.06.18, Universität Regensburg, M311.
- Characteristic class and the epsilon factor of an etale sheaf, Nanjing University, 2018.04.02.
- Swan classes of l-adic sheaves, School of Mathematical Sciences, Capital Normal University, 2018.03.21,
- The absolute purity theorem IV: torsion coefficients, 2018.01.26, Universität Regensburg, BIO 1.1.34. Note
- Characteristic class and the epsilon factor of an etale sheaf, seminar “autour des cycles algébriques” in Paris, 2017.12.13. Note
- Arbeitsgruppenseminar: The Tate diagonal (On Topological cyclic homology), 2017.11.20.
- Characteristic class and the epsilon factor of an etale sheaf, Humboldt-Universität zu Berlin, 2017.10.24.
- Arbeitsgruppenseminar: The Bloch-Srinivas conjecture, 2017.05.11,Universität Regensburg, BIO 1.1.34.
- Twist formula for the epsilon factor of a constructible etale sheaf, School of Mathematical Sciences, Capital Normal University, 2017.02.28.
- Twist formula for the epsilon factor of a constructible etale sheaf, Chinese Academy of Sciences, 2017.02.27.
- Arbeitsgruppenseminar: Ramification theory for varieties over perfect field, 2016.11.08,Universität Regensburg, BIO 1.1.34. Note
- SFB seminar: On the semi-continuity of characteristic cycle and singular support of constructible etale sheaves, 2016.10.21, Universität Regensburg.
- Seminar talk:Motivic fundamental group and the theorem of the fixed part, 2016, June 23–>Seminar FU
- Singular support and characteristic cycle, 2016.02.27, at Université Paris 6.
- Seminar talk:Moduli space of N-rigidified K3 crystals, 2016.01.07 –> Seminar FU
- Seminar talk:The inequality of Igusa-Artin-Mazur and K3 surfaces in positive characteristic,2015.11.26, at Freie Universität Berlin
- On the semi-continuity of total dimension divisor, 2015.10.22, at Freie Universität Berlin
- Vanishing topos and the semi-continuity of the Swan conductor(I), Morningside Center of Mathematics,Chinese Academy of Sciences, 2015.05.19.
- Vanishing topos and the semi-continuity of the Swan conductor(II), Morningside Center of Mathematics,Chinese Academy of Sciences, 2015.05.26.
- Characteristic cycle of a constructible sheaf and the Milnor formula, The Korea Institute for Advanced Study (KIAS),2015.04.29.
- On the characteristic cycle of a constructible sheaf on a surface, Korea Advanced Institute of Science and Technology (KAIST), 2015.03.20.
- Logarithmic version of the Milnor formula and the characteristic cycle of a tamely ramified sheaf, 2015 East Asian Core Doctorial Forum on Mathematics,Taiwan, 2015.01.22.
- On the characteristic cycle of a constructible sheaf on a surface, Morningside Center of Mathematics, Chinese Academy of Sciences, 2015.01.08.
- Logarithmic version of the Milnor formula and the characteristic cycle of a tamely ramified sheaf, Algebraic Number Theory and Related Topics 2014, Kyoto University, 2014.12.
- Logarithmic version of the Milnor formula and the characteristic cycle of a tamely ramified sheaf,Capital Normal University,2014.10.31.
- Logarithmic version of the Milnor formula, China-Korea Joint Seminar on Number Theory,Tsinghua Sanya International Mathematics Forum, 2014.10.
- On the $\mathrm{GL}(r)\times \mathrm{GL}(r+s)\times \mathrm{GL}(s)$ convolution, The first joint workshop between Beijing Tsinghua and Hsinchu Tsinghua on number theory,Tsinghua University, 2012.04.