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【会议】The 5th Xi’an International Workshop on Graph Theory and Combinatorics Program
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The 5th Xi’an International Workshop on Graph Theory and Combinatorics Program


 

Location: ZOOM Meeting 767 297 7211      Passcode: xian
June 26, Saturday
13:45-14:00 Opening Ceremony      Chair: Xueliang Li
Beijing Time Chair Talker Title
14:00-14:45 Shenggui Zhang Gyula O.H. Katona The forbidden poset problem
14:45-15:30 Jiuqiang Liu EKR-type theorems and recent developments
15:30-15:45 Break
15:45-16:30 Yongtang Shi Miklós Simonovits Open problems in extremal graph theory
16:30-17:15 Yuejian Peng Turán densities and Lagrangian densities of hypergraphs
17:15-19:00 Break
19:00-19:45 Yaping Mao Ingo Schiermeyer Gallai Ramsey numbers of complete graphs and odd cycles
19:45-20:30 Dragan Stevanović On circulant nut graphs
20:30-20:45 Break
20:45-21:30 You Lu Cun-Quan Zhang On Berge-Fulkerson conjecture
21:30-22:15 Guantao Chen On the Goldberg-Seymour conjecture and surrounding edge-coloring problems

June 27, Sunday
14:00-14:45 Xiaoyan Zhang Gregory Gutin Kings in multipartite hypertournaments
14:45-15:30 Daniel Paulusma Contracting to a longest path in H-free graphs
15:30-15:45 Break
15:45-16:15 Xin Zhang Shinya Fujita Some results on optimal proper connection number in edge-colored graphs
16:15-16:45 Ringi Kim The strong clique index of graphs with forbidden cycles
16:45-17:15 Ruonan Li Properly colored cycles and forbidden structures
17:15-19:00 Break
19:00-19:45 Yandong Bai Linyuan Lu Anti-Ramsey number of edge-disjoint rainbow spanning trees in all graphs
19:45-20:30 Zi-Xia Song The Erdős-Lovász Tihany conjecture
20:30-20:45 Break
20:45-21:30 Ligong Wang Xuding Zhu Every nice graph is (1,5)-choosable
21:30-22:15 Hong-Jian Lai Some progresses in the study of supereulerian digraphs
22:15-22:45 Boram Park Decomposing planar graphs under degree restriction

June 28, Monday
14:00-14:45 Wei Wang Douglas B. West Acyclic graphs with at least 2l+1 vertices are l-recognizable
14:45-15:30 Hehui Wu 1-subdivision, the fractional chromatic number, and the Hall ratio
15:30-15:45 Break
15:45-16:30 Xiaogang Liu Caiheng Li Two-arc transitive Cayley graphs
16:30-17:15 Sanming Zhou Perfect 2-colourings of Cayley graphs
17:15-17:45 Jinxin Zhou Bi-Cayley graphs and vertex-transitive non-Cayley graphs
17:45-19:00 Break
19:00-19:45 Jing Li Zhongshan Li Minimum rank and cycle conditions for sign patterns that allow diagonalizability
19:45-20:30 Libo Yang Kazhdan-Lusztig polynomials for uniform matroids
20:30-20:45 Break
20:45-21:30 FenjinLiu Jianfeng Hou On Min-Bisections of graphs
21:30-22:15 Gyula Y. Katona Minimally t-tough graphs

June 29, Tuesday
14:00-14:45 JianfengWang Weifan Wang Acyclic coloring of graphs
14:45-15:30 Jie Ma Improvements on induced subgraphs of given sizes
15:30-15:45 Break
15:45-16:30 Hongliang Lu Hao Li Rainbow cycles and alternative trees in edge colored graphs
16:30-17:15 Guanghui Wang Rainbow structures in graph systems
18:00-19:00 Break
19:00-19:45 Wei Li Carol T. Zamfirescu Hamiltonian cycles and 1-factors in 5-regular graphs
19:45-20:30 Edwin R. van Dam Several adjacency matrices for digraphs and their spectra
20:30-20:45 Break
20:45-21:15 Chuandong Xu Binlong Li On an extremal problem of Erdős, Faudree, Schelp and Simonovits
21:15-21:45 Bo Ning A spectral condition for cycles with consecutive lengths: a Ramsey Theory approach
21:45-22:15 Lulu Gao The equivariant inverse Kazhdan-Lusztig polynomials of uniform matroids
22:15-22:30 Closing Ceremony      Chair: Shenggui Zhang

Program Committee

Chair:Xueliang Li

Members:Hajo Broersma, Gyula O.H. Katona, Miklós Simonovits, Hao Li, Xueliang Li,

You Lu, Ligong Wang, Shenggui Zhang

Organizing Committee

Chair:Shenggui Zhang

General Secretary:Yandong Bai

Members:Yandong Bai, Lulu Gao, Binlong Li, Jing Li, Ruonan Li, Wei Li, Xia

Liu, Xiaogang Liu, You Lu, Ligong Wang, Jia Wei, Shenggui Zhang

Sponsors

Northwestern Polytechnical University

CSIAM Activity Group on Graph Theory and Combinatorics with Applications