报告人:戈鋆(四川师范大学 副教授)
报告时间:2025年12月22日(周一) 16:00—17:00
报告地点:章辉楼442
联系人:马天龙
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报告摘要:In this talk, we will first introduce several methods on counting spanning trees, including the rank-one perturbation to the Laplacian, the electrical network method, and the Wang algebra. Then we will introduce some recent work on the Moon-type formulas (the number of spanning trees containing any fixed spanning forest). For a bipartite graph G, we will explain our recent results on expressing the number of spanning trees of Kn-G in terms of the determinant of the biadjcency matrices of all induced balanced bipartite subgraphs of G.
报告人简介:戈鋆,厦门大学博士,南洋理工大学博士后。现任四川师范大学数学科学学院副教授,博士生导师,中国运筹学会图论组合分会理事。研究方向为图多项式和相关的计数问题,在Journal of Graph Theory, Journal of Algebraic Combinatorics等知名SCI期刊发表论文30篇。主持国家自然科学基金3项。