搜索结果: 1-4 共查到“理学 unicyclic graphs”相关记录4条 . 查询时间(0.136 秒)
Reverse degree distance of unicyclic graphs
Degree Distance Reverse degree distance Diameter Unicyclic graph Pendant vertices Maximum degree
2011/9/1
Abstract: The reverse degree distance is a connected graph invariant closely related to the degree distance proposed in mathematical chemistry. We determine the unicyclic graphs of given girth, number...
Acyclic and unicyclic graphs whose minimum skew rank is equal to the minimum skew rank of a diametrical path
skew-symmetric matrix minimum skew rank matching diametrical path tree unicyclic graph rank matrix
2011/9/1
Abstract: The minimum skew rank of a simple graph G over the field of real numbers, is the smallest possible rank among all real skew-symmetric matrices whose (i,j)-entry (for i not equal to j) is non...
Minimizing Laplacian spectral radius of unicyclic graphs with fixed girth
Laplacian matrix Laplacian spectral radius girth unicyclic graph
2011/1/18
In this paper we consider the following problem: Over the class of all simple con-nected unicyclic graphs on n vertices with girth g (n, g being fixed), which graph minimizes the Laplacian spectral ra...
Complete solution to a conjecture on the maximal energy of unicyclic graphs
Complete solution conjecture unicyclic graphs
2010/11/24
For a given simple graph $G$, the energy of $G$ denoted by $E(G)$, is defined as the sum of the absolute values of all eigenvalues of its adjacency matrix. Let $P_n^{\ell}$ be the unicyclic graph obt...