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  • Fixed point indices and fixed words at infinity of selfmaps of graphs, The 16th East Asian Conference on Geometric Topology, Online, Jan 25, 2021​​​​​​​ Zhang210125

  • Fixed point indices and fixed words at infinity of selfmaps of graphs, The 7th China-Russia Conference on Knot Theory and Related Topics, Beijing Normal University, Beijing, Dec. 6, 2020 Zhang201206

  • On the bounded index property for products of aspherical polyhedra, The 15th East Asian Conference on Geometric Topology, RIMS, Kyoto University, Kyoto, Japan, Feb 11, 2020, Cacelled

  • On the bounded index property for products of aspherical polyhedra, The 13th National Congress of the Chinese Mathematical Society, Foshan, Nov 23, 2019

  • A brief survey of the Bounded Index Property, Workshop on Low-dimensional Topology, Shanghai Jiao Tong University, Shanghai, Nov 9, 2019

  • A brief survey on Bounded Index Property, Nielsen Theory and Related Topics, KU Leuven Campus Kulak, Kortrijk, Belgium, Jun 6, 2019 Zhang190606.pdf

  • Fixed subgroups in low-dimensional manifold groups, Workshop between Tianyuan Mathematical Center in Northwest China and Southeast China, Xiamen University, Xiamen, May 11, 2019

  • Bounds for fixed points on products of hyperbolic surfaces, Topology Seminar, Xi'an Jiaotong-Liverpool University, Suzhou, Jan 17, 2019

  • Bounds for fixed points on products of hyperbolic surfaces, East China Workshop on Topology, East China Normal University, Shanghai, Dec 23, 2018

  • Bounds for fixed points on products of hyperbolic surfaces, The 5th China-Russia Workshop on Knot Theory and Related Topics, Dalian University of Technology, Dalian, August 4, 2018
  • Fixed subgroups in direct products of free and surface groups, Geometric and Asymptotic Group Theory with Applications (GAGTA-2018), Korea Institute for Advanced Study, Seoul, Korea, July 17, 2018
  • Bounds for fixed points on products of hyperbolic surfaces, The 13th East Asian School of Knots and Related Topics, KAIST, Daejeon, Korea, Jan 30, 2018 Zhang180130.pdf
  • Fixed subgroups in direct products of free and surface groups, Workshop on Algebraic and Geometric Topology, Nankai University, Tianjin, Jun 21, 2017 Zhang1706.pdf
  • Fixed subgroups in direct products of free and surface groups, The 12th East Asian School of Knots and Related Topics, University of Tokyo, Tokyo, Japan, Feb 15, 2017
  • Fixed subgroups in low-dimensional manifold groups, Topology Seminar at PKU,  Peking University, Beijing, Dec 31, 2016 
  • Fixed subgroups in low-dimensional manifold groups, Topology Seminar at CUHK,  the Chinese University of Hong Kong, Hong Kong, Dec 5, 2016 Zhang1612.pdf
  • An introduction to right-angled Artin groups, Workshop on Geometric Group Theory, Soochow University, Suzhou, Oct 15, 2016 
  • Fixed subgroups in direct products of free and surface groups, Conference on Algebraic and Geometric Topology, Capital Normal University, Beijing, July 23, 2016 Zhang160723.pdf

  • Fixed subgroups in direct products of free and surface groups, The Third China-Russia Workshop on Knot Theory and Related Topics, Soochow University, Suzhou, July 11, 2016 Zhang160711.pdf

  • Bounds for fixed points on some manifolds, International Workshop on Fixed Point Theory and its Applications (IWFPTA-2016), Chonbuk National University, Jeonju, Korea, Jun 20, 2016 Zhang160620.pdf, IWFPTA-2016-Han.jpg

  • Fixed subgroups in direct products of free and surface groups, 2016 International Conference on Low-Dimensional Topology, Southwest Jiaotong University, Emei, Sichuan, Jun 15, 2016 Zhang160615.pdf

  • Bounds for fixed points on hyperbolic manifolds, The 11th East Asian School of Knots and Related Topics, Osaka City University, Osaka, Japan, Jan 28, 2016 Zhang160128.pdf

  • Fixed subgroups in low-dimensional manifold groups, Workshop on Manifolds & Groups, Xi'an Jiaotong-Liverpool University, Suzhou, Jan 24, 2016 Zhang160124.pdf

  • Fixed points and fixed subgroups, School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an, Jan 11, 2016 Zhang160111.pdf

  • Fixed subgroups are compressed in surface groups, Workshop on Low-dimensional Topology, Dalian Nationalities University, Dalian, Dec 20, 2015 Zhang151220.pdf

  • The fixed subgroups of homeomorphisms of Seifert manifolds, The 10th East Asian School of Knots and Related Topics, ECNU, Shanghai, Jan 28, 2015 Zhang201501.pdf

  • Fixed subgroups of free groups and surface groups, Topology Seminar at Peking University, Beijing, Jan 2, 2015
  • The group fixed by a family of endomorphisms of a surface group, A Satellite Conference of Seoul ICM 2014: Knots and Low Dimensional Manifolds, BEXCO, Busan, Korea, Aug 26, 2014 Zhang201408.pdf
  • Bounds for fixed points on Seifert manifolds, Workshop on Geometric Topology, Fudan University, Shanghai, Jul 16, 2012 Zhang120716.pdf
  • Bounds for fixed points on Seifert manifolds, The 8th East Asian School of Knots and Related Topics, KAIST, Daejeon, Korea, Jan 10, 2012
  • Boundary slopes of immersed surfaces in Haken manifolds, Workshop on Geometric Topology, Inner Mongolia University, Hohhot, Jul 3, 2008
  • Boundary slopes of immersed surfaces in Haken manifolds, The 4th East Asian School of Knots and Related Topics, University of Tokyo, Tokyo, Japan, Jan 22, 2008 tokyo.pdf