Courses Taught

Courses for undergraduate students:Elementary Number Theory; Linear Algebra; Advanced Algebra; Modern Algebra; Advanced Mathematics

Courses for graduate students: Extremal Graph Theory; Structural Graph Theory; Chemical Graph Theory; Network Science; Ramsey Theory; Morden Graph Theory; Combinatorial Geometry; Random Graph Theory

Invited International Microcourses

♦ Kinkar Chandra Das: Sungkyunkwan University, Korea, 23/8/2021-27/8/2021, Minicourse: On the Laplacian eigenvalues of a graph

♦Boris Furtula: University of Kragujevac, Serbia, 28/8/2021-2/10/2021, Minicourse: Chemist’s View on Graph Theory

♦Janos Pach: Hungarian Academy of Sciences, Hungary, 29/10/2021-5/11/2021, Minicourse: From Graphs to Geometry and Back

♦Gyula O.H. Katona: Hungarian Academy of Sciences, Hungary, 14/1/2021-11/1/2021, Minicourse: Extremal Set Theory

♦Dragan Stevanovic: Serbian Academy of Sciences and Arts, Serbia, 24/8/2020-4/9/2020, Minicourse: Spectral radius of adjacent matrix of a graph

♦Liming Dai: University of Regina, Canada, 7/12/2020-11/12/2020, Minicourse: Highlights of Advanced Mathematics and its Applications

♦Hongjian Lai: West Virginia University, USA, 24/11/2020-8/12/2020, Minicourse: Matroid Theory

Invited International Talks

♦Mikio Kano: Ibaraki University, 17/7/2019-25/7/2019, Talk Title: Rainbow and k-chromatic spanning trees in edge-colored graphs;

♦Hajo Broersma: University of Twente, Netherlands, 17/7/2019-25/7/2019, Talk Title: Edge-colored complete graphs without properly colored even cycles;

♦Gyula O.H. Katona: Hungarian Academy of Sciences, Hungary, 23/10/2019-3/11/2019, Talk Title: The domination number of the graph defined by two levels of the n-cube;

♦Zhizhang Shen: Plymouth State University, USA, 23/10/2019-3/11/2019, Talk Title: A general approach to deriving diagnosability results of interconnection networks;

♦Xiangqian Zhou: Wright State University, USA, 17/7/2019-25/7/2019, Talk Title: Strong edge-coloring of planar graphs;

♦ Boris Furtula: University of Kragujevac, Serbia, 12/5/2019-24/5/2019, Talk Title: Molecular descriptors and their quality-testing;

♦ Fangxiang Wu: University of Saskatchewan, Canada, 20/6/2018-22/6/2018, Talk Title: Computational Network Biology;

♦ Shinya Fujita: Yokohama City University, Japan, 27/7/2018-31/7/2018, Talk Title: Some recent results on safe sets in 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;

♦ Xiangqian Zhou: Wright State University, USA, 25/7/2018-31/7/2018, Talk Title: Induction for 4-connected matroids and graphs;

♦ Bing Wei: University of Mississippi, USA, 25/7/2018-1/8/2018, Talk Title: Independent bondage number of a graph

♦ Akira Saito: Nihon University, Japan, 29/7/2018-30/7/2018, Talk Title: Hamiltonian bipartite graphs in dense graphs;

♦ Hongjian Lai: West Virginia University, USA, 26/7/2018-31/7/2018, Talk Title: Some progress on the group connectivity and modular orientations of graphs;

♦ Hajo Broersma: University of Twente, Netherlands, 27/7/2018-5/8/2018, Talk Title: The power of closure operations;

♦ Ingo Schiermeyer: Freiberg University of Mining and Technology, Germany, 27/7/2018-30/7/2018, Talk Title: Gallai-Ramsey number for K4 and K5;

♦ Guantao Chen: Georgia State University, USA, 25/7/2018-1/8/2018, Talk Title: Progress on Goldberg’s conjecture;

♦ Zixia Song: University of Central Florida, USA, 29/7/2018-30/7/2018, Talk Title: Multicolor Gallai-Ramsey numbers of cycles;

Colton Magnant: Georgia Southern University, USA, 8/7/2018-31/7/2018, Talk Title: Gallai-Ramsey numbers-General bounds and sharp cases;

♦ Hao Li: French National Center for Scientific Research, France, 24/5/2018-27/5/2018, Talk Title: On pancyclic;

♦ 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; 17/7/2019-25/7/2019, Talk Title: Proper trees, paths and cycle in edge-colored graphs;

♦ Antoine Lobstein: French National Centre for Scientific Research, France, 24/5/2018-27/5/2018, Talk Title: On codes identifying vertices in graphs;

♦ Evelyne Flandrin: University Paris South, France, 24/5/2018-27/5/2018, Talk Title: Cycles in graphs and in prisms of graphs;

♦ Johanne Cohen: French National Centre for Scientific Research, France, 24/5/2018-27/5/2018, Talk Title: Self-stabilizing algorithms for matching;

♦ Rong Luo: West Virginia University, USA, 24/4/2018-27/4/2018, Talk Title: Edge-coloring of simple graphs on surfaces;

♦ Julien Bensmail: University of Cˆotedazur, France, 24/4/2018-27/4/2018, Talk Title: On augmenting matchings via bounded-length augmentations;

♦ Elena Konstantinova: Novosibirsk State University, 24/4/2018-27/4/2018, Talk Title: Chromatic properties of Cayley graphs;

♦ Alexander Anatolievich Ivanov: Imperial College London, UK, 24/4/2018-27/4/2018, Talk Title: The Mathieu Groups;

♦ Kinkar Chandra Das: Sungkyunkwan University, USA, 8/10/2017-4/1/2018, Talk Title: Comparison between topological indecies of graphs;

♦ Ioannis Manoussakis: University Paris South, France, 8/10/2018-4/11/2018, Talk Title: Algorithmic and structural results on the existence of tropical subgraphs in vertex-colored graphs;

♦ Zixia Song: University of Central Florida, USA, 1/6/2017-4/6/2017, Talk Title: On saturated graphs;

♦ Xingxing Yu: Georgia Institute of Technology, USA, 9/7/2018-30/7/2018, Talk Title: Problems related to the four color theorem; 9/7/2017-30/7/2017, Talk Title: On judicious bipartitions of graphs;

♦Colton Magnant: Georgia Southern University, USA, 23/5/2017-25/5/2017, Talk Title: Gallai-Ramsey numbers for finding either a rainbow triangle or some small monochromatic subgraphs;

♦ Henry Liu: UK, 8/10/2016-4/11/2016, Talk Title: Connected subgraphs in edge-colored graphs;

♦ Fu, Chin-Mei, Kau: Tamkang University, 28/10/2016-4/11/2016, Talk Title: Graph decomposition;

♦ Hung-Lin Fu: National Chiao Tung University, 28/10/2016-4/11/2016, Talk Title: Multicolored subgraphs in properly edge-colored graphs;

♦ Jiuqiang Liu: Eastern Michigan University, USA, 28/10/2016-30/10/2016, Talk Title: Cross-intersecting families in set systems;

♦ Yuqing Lin: University of Newcastle, 28/10/2016-2/11/2016, Talk Title: Factorization of regular graphs;

♦ Miklos 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.

Conference Organizers

Organizer, July 2019, 2019 International Conference on Colored Graphs, Big Data and Interconnection Networks Xining, China

Organizer, July 2018, 2018 International Conference on Graphs, Artificial Intelligence and Complex Networks Xining, China

Organizer, May 2018, China-France International Symposium on the Frontier of Graph Theory Xining, China

Organizer, April 2018, The third International Symposium on the Frontier of Graph Theory Xining, China

Organizer June 2017, 2017 International Symposium on the Frontier of Graph Theory Xining, China Organizer

October 2016, 2016 International Symposium on Structural Graph Theory Xining, China