01月27日 束金龙教授学术报告

发布时间:2018-01-29浏览次数:69

报 告 人:  束金龙 教授

报告题目:The fractional matching number and the (Laplacian) spectral radiusof graphs

报告时间:2018年1月27日(周六)16:30

报告地点:静远楼1506报告厅

报告摘要:Afractional matching of a graph G is a function f giving each edge a number in[0,1] so that e∈Γ(v) ≤ 1 for each v ∈ V (G), where Γ(v) is the set of edgesincident to v. The fractional matching number of G, written ν(G), is themaximum of e∈E(G)f(e) over all fractional matchings. Here, we consider therelationship between the fractional number, the spectral radius and theLaplacian spectral radius of a graph.