目前已作的部分学术报告：

1.        Gromov-Hausdorff convergences on graphs, 京师度量几何会议, Beijing Normal University, Beijing, China, 2023.6.10-6.11.

2.        A graph with nonnegative curvature has at most two ends, 2023年天元数学中部中心几何分析研讨会（春季）, Wuhan, China, 2023.4.21-4.24.

3.        图上的一些“偏微分方程”问题, at Nantong University, Nantong, China, 2023.4.8.

4.        Recent results on stationary nonlinear Schroedinger equations on lattice graphs, at Beijing Normal University, Beijing, China, 2022.12.22.

5.        Some results on semilinear equations on graphs, 上海偏微分方程及其应用学术研讨会, School of Mathematical Sciences, East China Normal University, China, 2022.12.10-12.11.

6.        Some basic results on nonlinear Schrodinger equations on lattice graphs, at China Three Gorges University, Yichang, China, 2022.12.7.

7.         An invitation for Steklov eigenvalues on graphs, at Jiangsu University, Zhenjiang, China, 2022.11.3.

8.        Ollivier curvature on graphs and discrete harmonic functions, at Beijing International Center for Mathematical Research, Peking University, China, 2022.10.27.

9.        Polynomial growth ancient solutions on graph, at East China Normal University, China, 2022.10.11.

10.     具有非负组合曲率的平面图形的全曲率, at Southwest University, Chongqing, China, 2022.9.29.

11.      图上的一些非线性方程I, II, at Suzhou University of Science and Technology, Suzhou, China, 2022.9.15.

12.     Discrete curvatures and harmonic functions on graphs, Workshop on Geometric Analysis 2022, Qingdao, Shandong, China, 2022.9.5-9.9.

13.     Combinatorial curvature on planar graphs, at Capital Normal University, Beijing, China, 2022.8.14.

14.     Curvature conditions on graphs, Applied Geometry for Data Sciences, at Chongqing University of Technology, China, 2022.7.27.

15.      离散曲率相关的一些问题, at Shantou University, Shantou, China, 2022.4.28.

16.     Steklov eigenvalues on graphs, at University of Science and Technology of China, China, 2022.4.20.

17.      图上的曲率和离散几何分析, at Tianyuan Mathematical Center in Southeast China, Xiamen University, China, 2022.3.31.

18.     Curvatures on graphs, at Sun Yat-sen University, Guangzhou, China, 2022.3.22.

19.     An invitation to the discrete Ricci flow, at Suzhou University, Suzhou, China, 2021.11.19.

20.    Subharmonic functions on graphs with positive spectrum, at University of Hagen, Germany, 2021.10.27.

21.     Steklov eigenvalues on graphs, 8th European Congress of Mathematics, Slovenia, online, 2021.6.20-6.26.

22.    Harmonic functions on graphs, the 8th International Congress of Chinese Mathematicians, at Tsinghua University, China, 2019.6.5-6.14.  

23.     图上的 p-Laplace 算子特征值和特征函数, 几何分析与非线性偏微分方程研讨会, Institute for Advanced Study in Mathematics in Harbin Institute of Technology, China, 2019.5.2-5.6. 

24.    Planar graphs with nonnegative combinatorial curvature, on 2018 Annual meeting of International Consortium of Chinese Mathematicians, Taiwan, 2018.12.27-12.29.

25.     Combinatorial curvature for infinite planar graph, Graphs and Group, Representations and Relations, Novosibirsk State University, Russia, 2018.8.1-8.22.

26.    Some results on eigenvalues of Laplacians on graphs, Tianyuan Advanced Seminar on Harmonic Analysis, Geometry and Partial Differential Equations, China, 2018.5.28-6.8.

27.     Combinatorial curvature for planar graphs, on the 3rd Japan-China Geometry Conference, Tohoku University, Japan, 2017.9.2.

28.    Combinatorial curvature for planar graphs, Analysis and Geometry on Graphs and Manifolds, at University of Potsdam, Germany, 2017.7.31-8.4.

29.    Combinatorial curvature for planar graphs, at Peking University, Beijing, China, 2017.4.19.

30.    Curvature dimension conditions on graphs, Analysis on Fractals and Graphs, Sanya, China, 2016.12.26-12.30.

31.     Steklov problems on graphs, Recent Advances in Nonlinear PDEs, SUSTech, 2016.12.19-12.21.

32.     Curvature dimension conditions on graphs, Workshop on Geometric Analysis and Geometric Topology, Capital Normal University, China, 2016.12.19.

33.     Combinatorial curvature of a planar graph, Workshop on Geometric Analysis (Wuhan University 2016), Wuhan, China, 2016.12.3-12.5.

34.    An introduction to Dirichlet to Neumann operators, at Hubei University, China, 2016.12.5.

35.     Curvature dimension conditions on graphs, Workshop on Geometry, Tongji University, China, 2016.12.3.

36.    An introduction to discrete geometric analysis I-IV, minicourse, Capital Normal University, China, 2016.11.15-11.25.

37.     Some results on curvature dimension conditions on graphs, The Second Workshop on Differential Geometry and Differential Equations, Renmin University of China, China, 2016.11.12-11.14.

38.    Discrete curvature on graphs, Workshop on selected topics in differential geometry, Peking University, China, 2016.11.5.

39.    Total combinatorial curvature of non-negatively curved planar graphs, at Nanjing Normal University, Nanjing, China, 2016.11.3.

40.    Intrinsic metrics on graphs, at Nanjing University of Information Science and Technology, Nanjing, China, 2016.11.2.

41.     Harmonic functions on discrete groups, on Conference “Geometry, Groups and Topology”, Karlsruhe Institute of Technology, Germany, 2016.10.11.

42.    Curvature dimension conditions on graphs, at Wuhan University, China, 2016.9.20.

43.    Harmonic maps on graphs, at Wuhan University, Wuhan, China, 2016.

44.    Curvature on graphs, at Shanghai Jiaotong University, Shanghai, China, 2016.

45.     Geometric analysis on graphs, at Tohoku University, Sendai, Japan, 2014.12.12.

46.    Harmonic functions on metric measure spaces with Riemannian curvature dimension conditions, at Tohoku University, Sendai, Japan, 2014.12.11.

47.     Harmonic functions on Riemannian manifolds and graphs, at Tsinghua University Mathematical Sciences Center, Beijing, 2014.11.18.

48.    Partial difference equations on graphs, Yangze River Delta conference on partial differential equations, Zhejiang University, Hangzhou, 2014.10.18.

49.    A variant of Davies lemma on graphs, Spectral Theory and Its Applications, University Bordeaux, France, 2014.10.8.

50.    Geometric analysis on graphs, 2014 Annal conference of Chinese Mathematical Society, Henan Normal University, Henan, 2014.9.21.

51.      Davies Lemma on graphs, at Australian National University, Canberra, Australia, 2014.8.22.

52.     Difference equations on graphs, at Australian National University, Canberra, Australia, 2014.8.12.

53.     Discrete Laplacians on graphs, at Zhejiang University of Technology, Hangzhou, China, 2014.6.27.

54.     Spectral distances on graphs, 2014 Workshop on Geometric Analysis on Graphs, Renmin University, Beijing, China, 2014.6.24.

55.     A new curvature notion on metric spaces, at Captital Normal University, Beijing, China, 2014.6.23.

56.     A new notion of curvature condition on metric spaces, at Nanjing Normal University, Nanjing, China, 2014.6.15.

57.     (Discrete) Nonlinear evolution equations: p-parabolic equations on infinite graphs, at Shanghai Jiaotong University, China, 2014.6.10.

58.    Difference equations on graphs, at University of Science and Technology of China, China, 2014.4.16.

59.     From continuity to discreteness: (partial) Difference equations on graphs, at Fudan University, China, 2014.3.7.

60.    A geometric description of the largest eigenvalue of a graph: the dual Cheeger constant, at Shanghai Jiaotong University, China, 2013.12.14.

61.     Nonlocality and local hidden variable models, Quantum information seminar, at Capital Normal University, China, 2013.12.12.

62.    Harmonic function theory on graphs, at School of Mathematics and Statistics, Wuhan University, China, 2013.12.5.

63.    Harmonic functions on graphs, at School of Mathematical Sciences, University of Science and Technology of China, China, 2013.12.3.

64.    The Laplacians on graphs, at Universität Ulm, Ulm, Germany, 2013.11.7.

65.     Spectral theory on infinite graphs: A geometric approach, at the workshop “Discrete and Continuous Models in the Theory of Networks”, ZiF Center for Interdisciplinary Research, Bielefeld University, Germany, 2013.6.25.

66.    Harmonic functions on graphs, at Friedrich-Schiller-Universtaet Jena, Jena, Germany, 2012.8.21.

67.     Polynomial growth harmonic functions on graphs, at Universtaet Magdeburg, Magdeburg, Germany, 2012.4.26.

68.    Polynomial growth harmonic functions on Alexandrov spaces, at Geometric seminars of Freiburg University, Freiburg, Germany, 2011.11.29.

69.    Analysis on singular spaces and generalized Ricci curvature, at CUNY Geometric seminars, New York, USA, 2009.4.21.

70.    Liouville-type theorem and polynomial growth harmonic function theorem on singular spaces, at Mathematical Department, Notre Dame University, Indiana, IL, USA, 2009.3.31.

71.      Some analysis on singular spaces, at American Mathematical Society 2009 Spring Central Sectional Meeting, no. 1047, Urbana, IL, USA, 2009.3.28.

72.     Generalized Liouville-type theorem in nonnegatively curved singular spaces, on the First Joint International Meeting of AMS with the Shanghai Mathematical Society, Fudan University, Shanghai, China, 2008.12.