Vistors and Talks

Upcoming

Past

• December 20-23, 2025
  Yulin Gong（龚禹霖）
  from University of Bristol visited and talked in the Spectral geometry seminar on Observability and Semiclassical Control for Schrödinger Equations on Non-compact Covering Spaces of Compact Hyperbolic Surfaces.
  
• December 17-20, 2025
  Yi Huang（黄益）
  from Nanjing Normal University visited and talked with the title Three Notes on Singularity Analysis.
  
• December 14-21, 2025
  Shouda Wang（王首达）
  from Princeton University visited and delivered a mini-course on convex geometry, matroid theory and combinatorial Hodge theory.
  
• December 03-04, 2025
  Jing Mao（毛井）
  from Hubei University visited and talked in the Spectral geometry seminar on Spectral isoperimetric inequalities for a class of mixed eigenvalue problems of the Laplacian on triangles and trapezoids.
  
• November 11-12, 2025
  Bangxian Han（韩邦先）
  from Shandong University visited and talked on On the Structure of Busemann Spaces and Alexandrov Spaces.
  
• October 29-November 05, 2025
  Chuanyuan Ge（葛川源）
  from Fuzhou University visited .
  
• October 12-November 22, 2025
  Joe Thomas
  from Durham University visited, talked in the Spectral geometry seminar on Spectra of maximal abelian covers of graphs, co-organized “The Strong Convergence Month in USTC” the and delivered a mini-course on Optimal spectral gap of random hyperbolic surfaces.
  
• October 08-13, 2025
  Norbert Peyerimhoff
  from Durham University visited and talked in the Spectral geometry seminar on On a new spectral invariant for finite graphs.
  
• September 20-26, 2025
  Jinpeng Lu （卢金鹏）
  from University of Helsinki visited and talked in the Spectral geometry seminar on On the stability of Gel'fand's inverse spectral problem.
  
• August 26-September 03, 2025
  Chuanyuan Ge（葛川源）
  from Fuzhou University visited .
  
• May 14-15, 2025
  Bobo Hua（华波波）
  from Fudan University visited .
  
• May 13-14, 2025
  Dong Zhang（张栋）
  from Peking University visited .
  
• March 17-April 15, 2025
  Zhe You（游哲）
  from East China University of Science and Technology visited .
  
• July 01-06, 2024
  Yongtao Liu （刘永涛）
  from Ningxia University visited and talked in the Spectral geometry seminar on First Robin eigenvalue comparison of the p-Laplacian under integral Ricci curvature.
  
• June 13-30, 2024
  Yulin Gong （龚禹霖）
  from Tsinghua University visited and talked in the Spectral geometry seminar on Spectral Distribution of Twisted Laplacian on Typical Hyperbolic Surfaces of High Genus.
  
• May 14-16, 2024
  Linlin Sun （孙林林）
  from Guangxi Normal University visited and talked in the Spectral geometry seminar on Some results related to the Kazdan-Warner equations .
  
• June 13-30, 2023
  Hongyi Cao （曹鸿艺）
  from Peking University visited and talked in the Spectral geometry seminar on Localization for quasi-periodic Schrodinger operators on \(\mathbb{Z}^d\) with \(C^2\)-cosine Like Potentials.
  
• May 31-April 02, 2023
  Jun Sun（孙俊）
  from Wuhan University visited .
  
• March 10-13, 2023
  Xiaobao Zhu（朱晓宝）
  from Renmin University of China visited .
  
• June, 2019
  Florentin Muench
  from Max-Planck Institute for Mathematics in the Sciences visited and talked on Long time behavior of discrete Ollivier Ricci flow .
  
• October 29-November 01, 2018
  Mengqiu Shao (邵梦秋)
  from Tsinghua University visited.
  
• September 4, 2018
  Haitao Yan (严海涛)
  Reading seminar talk. Higher order Cheeger inequalities.
  
• April, 2018
  Florentin Muench
  from Potsdam University visited and talked on Perpetual cutoff method and discrete Ricci curvature .
  
• March 28, 2018
  Supanat Kamtue
  from Durham University talked with the title Long-scale Olliver-Ricci curvature of graphs.
  
• December 20, 2017
  Bangxian Han （韩邦先）
  from University of Bonn visited and talked with the title Characterizations of convex functions and monotone vector fields on metric measure space.
  
• October 31, 2017
  Wilhelm Klingenberg
  from Durham University visited and talked with the title Lagrangian surfaces in \(R^4\) and in \(TS^2\).
  
• October 18, 2017
  Radoslaw Wojciechowski
  from City Unviersity of New York talked with the title The heat equation on graphs: stochastic incompleteness, the Feller property and uniform transience.
  
• June 13, 2017
  Xu Xu （徐旭）
  from Wuhan University visited and talked with the title Rigidity of circle packings and sphere packings.
  
• March 05-18, 2017
  David Cushing and Norbert Peyerimhoff
  from Durham University visited and talked in 3-10国家数学与交叉科学中心合肥分中心报告 and 3-8国家数学与交叉科学中心合肥分中心报告 with titles "Bakry-\'Emery curvature functions of graphs" and "Sectional curvature of polygonal complexes with planar substructures".
  
• December 29-30, 2016
  Peter L. Guo (郭龙) from Nankai University (南开大学) visited and talked in GAP Seminar on "Some combinatorial structures involving Young tableaux "