乘法型兰州指标关于树，单圈图和双圈图的极值（英文）

崔青青; 赵飚

doi:10.13568/j.cnki.651094.651316.2023.01.24.0001

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乘法型兰州指标关于树，单圈图和双圈图的极值（英文）

更新时间：2026-01-21

- 乘法型兰州指标关于树，单圈图和双圈图的极值（英文）
- Journal of Xinjiang University (Natural Science Edition in Chinese and English) Vol. 40, Issue 6, Pages: 654-662(2023)
- 作者机构：
  
  新疆大学数学与系统科学学院
- 作者简介：
- 基金信息：
- DOI：10.13568/j.cnki.651094.651316.2023.01.24.0001
  CLC： O157.5
- Published：2023
- 稿件说明：
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[1]崔青青,赵飚.乘法型兰州指标关于树，单圈图和双圈图的极值（英文）[J].新疆大学学报(自然科学版)(中英文),2023,40(06):654-662.
[1]崔青青,赵飚.乘法型兰州指标关于树，单圈图和双圈图的极值（英文）[J].新疆大学学报(自然科学版)(中英文),2023,40(06):654-662. DOI： 10.13568/j.cnki.651094.651316.2023.01.24.0001.

DOI：10.13568/j.cnki.651094.651316.2023.01.24.0001.

摘要

考虑了兰州指标的乘法型版本.通过引入一些严格增大或减小该指标的图变换

刻画了乘法型兰州指标关于树

单圈图和双圈图的极值和极图.

Abstract

We consider a multiplicative version of Lanzhou index. By introducing some graph transformations that strictly increase or decrease this index

and we characterize the extremal graphs with respect to the multiplicative Lanzhou index over the following sets: trees

unicyclic and bicyclic graphs.

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Keywords

references

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