大连理工大学学报Issue(1)：152-156,5.DOI:10.7511/dllgxb201401023
按 Laplace 谱半径对一些偶单圈图的排序
Some even-unicyclic graphs ordering by their Laplacian spectral radii
摘要
Abstract
Ordering some even-unicyclic graphs by their Laplacian spectral radii is the main research problem .An expanding transformation which changes the Laplacian radius of even-unicyclic graph S1k is given .With the aid of the way to prove the expanding transformation ,the largest three and the smallest one in the order of even-unicyclic graphs C(k+2 ,k)(k≥10) by Laplacian spectral radii are obtained .关键词
单圈图/最大Laplace特征值/排序Key words
unicyclic graphs/maximum Laplacian eigenvalues/ordering分类
数理科学引用本文复制引用
张海霞..按 Laplace 谱半径对一些偶单圈图的排序[J].大连理工大学学报,2014,(1):152-156,5.基金项目
山西省自然科学基金资助项目（2012011019-2）；太原科技大学校青年基金资助项目（20113022）． （）
