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2022.7.5
2022.7.5
Lecture on "On Sampling Continuous-Time AWGN Channels"
Speaker:Han Guangyue, Department of Mathematics, the University of Hong KongDate:July. 5, 2022Time:10:00-12:00Location:Tencent Meeting,ID:126 759 928Sponsor:Research Center for Mathematics and Interdisciplinary SciencesResearch Center for Nonlinear ExpectationAbstract:For a continuous-time additive white Gaussian noise (AWGN) channel with possible feedback, it has been shown that as sampling g...
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2022.6.22
2022.6.22
Lecture on "Arboricity and Partition"
Speaker: Wang Weifan, distinguished professor, doctoral supervisor, Zhejiang Normal UniversityDate: Wednesday, June 22, 2022Time: 9:00-10:00Location: Tencent MeetingSponsor: School of Mathematics, Shandong UniversityAbstract:For a positive integer n, the linear n-arboricity of a graph G is the least number k such that G can be edge-partitioned into k forests, whose component trees are paths of ...
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2022.6.15
2022.6.15
Lecture on “Bisections of Graphs Without Complete Bipartite Graphs”
Speaker: Hou Jianfeng, professor, doctoral supervisorDate: Wednesday, June 15, 2022Time: 9:00-10:00Location: Tencent MeetingSponsor: School of Mathematics, Shandong UniversityAbstract:A bisection of a graph is a bipartition of its vertex set in which the two classes differ in size by at most one. For a random bisection of a graph with m edges, one expects m/4 edges spans in one vertex class. Bo...
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2022.6.13
2022.6.13
Lecture on "Results and Questions on Linkage of Graphs"
Speaker: Yu Gexin, professor, College of William and Mary, the US.Date: Monday, June 13, 2022Time: 9:00-10:00Location: Tencent MeetingSponsor: School of Mathematics, Shandong UniversityAbstract:A graph G is k-linked if for any vertices x_1,…,x_k ,y_1,…,y_k in G, we can find disjoint paths P_1,…,P_k so that P_i has endpoints x_i and y_i for each i. Graph linkage is a very important tool to st...
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Lecture on "Geometric and spectral theory of signed graphs"
Speaker:Zeng Qiang, Assistant Professor, Faculty of Mathematics, University of MacauDate: June. 1, 2022 Time: 19:30-20:30Location: Tecent Meeting, ID:752 465 434Sponsor: School of Mathmatics, Shandong UniversityAbstract:A signed graph is a graph whose edges are labelled by a signature. It serves as a simple model of discrete vector bundle. The fundamental ideas of balance and switching of sign...
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2022.5.25
2022.5.25
Lecture on "Long cycles and spanning trees in planar graphs and beyond"
Speaker: Guantao Chen, Regents’ Professor, Department of Mathematics and Statistics, Georgia State University
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2022.5.24
2022.5.24
Lecture on "SDEs with Normal Constraints in Law and Mean Field Limit of Related Interacting Particle Systems"
Speaker: Ying HU, Professor, University of Rennes 1
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2022.4.21