Miklós Simonovits ,Hungarian      Academy of Sciences, 28/10/2016-4/11/2016, Talk Title: Various      Applications of the Stability Method in Extremal Graph Theory and Related      Areas;
 
  林宇清,      University of Newcastle, 28/10/2016-2/11/2016, Talk Title: Factorization      of Regular Graphs;
 
  刘九强,      Eastern Michigan University,      USA, 28/10/2016-30/10/2016,Talk Title: Cross      t-intersecting Families in Set Systems;
 
  傅恒霖,台湾交通大学,28/10/2016-4/11/2016, Talk Title: Multicolored      Subgraphs in Properly Edge-colored Graphs;
 
  高金美,台湾淡江大学,28/10/2016-4/11/2016,      Talk Title: Graph Decomposition;
 
  Henry      Liu, 中南大学,8/10/2016-4/11/2016, Talk Title: Connected Subgraphs in Edge-Coloured      Graphs;
 
  Colton Magnant,      Georgia Southern University, USA, 8/10/2016-4/11/2016,Talk      Title: Gallai-Ramsey numbers for finding either a rainbow triangle or some      small monochromatic subgraphs; /7/2017-31/7/2017, Talk Title:Gallai-Ramsey      numbers - General bounds and sharp cases ;
 
  郁星星,Georgia Institute of Technology,      USA, 8/10/2017-4/11/2017, Talk Title: On judicious bipartitions of graphs;      9/7/2017-30/7/2017, Talk Title:Problems related to      the Four Color Theorem ; 
 
  宋梓霞,      University of Central Florida, USA, 8/10/2017-4/11/2017, Talk      Title: On saturated      graphs; 29/7/2017-30/7/2017, Talk Title: Multicolor Gallai-Ramsey numbers      of cycles; 
 
  Ioannis Manoussakis,      University Paris South, France, 8/10/2017-4/11/2017, Talk Title:      Algorithmic and structural results on the existence of tropical subgraphs      in vertex-colored graphs;
 
  Kinkar Chandra Das, Sungkyunkwan      University, USA, 8/10/2017-4/1/2018, Talk Title: Comparison between      topological indecies of graphs; 
 
  Alexander Anatolievich Ivanov,      Imperial College London, UK, 24/4/2018-27/4/2018, Talk Title: The Mathieu      Groups;
 
  Elena Konstantinova, Novosibirsk      State University, 24/4/2018-27/4/2018, Talk Title: Chromatic properties of      Cayley graphs;
 
  Julien Bensmail, University of      Côte d’Azur, France, 24/4/2018-27/4/2018, Talk Title: On augmenting      matchings via bounded-length augmentations;
 
  罗荣,West      Virginia University, USA,24/4/2018-27/4/2018, Talk Title: Edge coloring of      simple graphs on surfaces; 
 
  Johanne Cohen, French National      Centre for Scientific Research, France, 24/5/2018-27/5/2018, Talk Title:      Self-stabilizing algorithms for matching; 
 
  Evelyne Flandrin, University      Paris South, France, 24/5/2018-27/5/2018, Talk Title: Cycles in graphs and      in prisms of graphs;
 
  Antoine Lobstein, French National      Centre for Scientific Research, France, 24/5/2018-27/5/2018, Talk Title:      On codes identifying vertices in graphs;
 
  Ioannis Manoussakis, University      Paris South, France, 24/5/2018-27/5/2018, Talk Title: Subgraphs with      specified color properties in vertex- or edge-colored graphs;
 
  李皓,      French National Centre for Scientific Research, France,      24/5/2018-27/5/2018, Talk Title: On pancyclic;
 
  陈冠涛,Georgia      State University ,USA,25/7/2018-1/8/2018,Talk Title:Progress on      Goldberg’s conjecture ;
 
  Ingo Schiermeyer, Freiberg      University of Mining and Technology,Germany, 27/7/2018-30/7/2018, Talk      Title: Gallai Ramsey number for K_4 and K_5 ;
 
  Hajo Broersma,University      of Twente ,Netherlands, 27/7/2018-5/8/2018, Talk Title: The power of      closure operations ;
 
  赖虹建,West      Virginia University, USA,26/7/2018-31/7/2018,Talk Title:Some progress on      the group connectivity and modular orientations of graphs ;
 
  Akira Saito,Nihon      University,Japan,      29/7/2018-30/7/2018, Talk Title: Hamiltonian bipartite graphs in dense      graphs ;
 
  卫兵,University      of Mississippi , USA,25/7/2018-1/8/2018, Talk      Title: Independent bondage number of a graph ;
 
  周向前,Wright      State University ,USA,25/7/2018-31/7/2018,      Talk Title:Induction for 4-connected matroids and graphs ;
 
  Kenta Ozeki ,Yokohama      National University ,Japan,      27/7/2018-31/7/2018, Talk Title:Every 4-connected graph with crossing      number 2 is hamiltonian ;
 
  Shinya Fujita, Yokohama City University      ,Japan,      27/7/2018-31/7/2018, Talk Title:      Some recent results on safe sets in graphs; 
 
  吴方向,University      of Saskatchewan, Canada , 20/6/2018-22/6/2018,      Talk Title:Computational Network Biology ;
 
  Boris Furtula, University of      Kragujevac, Serbia, 12/5/2019-24/5/2019, Talk Title: Molecular Descriptors      and Their Quality–Testing;