一些互补等能量强正则图的刻画  

Characterization of Some Complementary Equienergetic Strongly Regular Graphs

作　　者：姜艺淼 梁超凡 

机构地区：[1]长安大学理学院,陕西 西安

出　　处：《运筹与模糊学》2023年第1期204-209,共6页Operations Research and Fuzziology

摘　　要：图G的能量E(G)是其邻接矩阵的所有特征值绝对值的和。如果一个图和它的补图不同构且具有相同的能量,则称此图是互补等能量的。本文利用强正则图的参数给出了其能量表达式,并借助此公式给出了两类(无穷)互补等能量的强正则图的参数。The energy E(G) of a graph G is the sum of the absolute values of all eigenvalues of its adjacency matrix. Graph energy comes from quantum chemistry. If a graph and its complement graph are not isomorphic and have the same energy, then the graph is said to be complementary equienergetic. In this paper, the energy expression of the strongly regular graph is given by the parameters of that, and the parameters of two types(infinite) of complementary equaenergetic strongly regular graph are given with the help of this formula.

关 键 词：互补等能量 强正则图 特征值 

分 类 号：O15[理学—数学]