Variation of sum of two largest eigenvalues of the distance matrices of four-leaf graph
In order to accurately obtain the extremum of the distance eigenvalues of fowr-leaf graphs under tow graph transformations in any case, two graph transformations of four-leaf graphs and the results of the above problems were given by using the properties of the determinant, the Vieta theorem and the...
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
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Hebei University of Science and Technology
2020-04-01
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| Series: | Journal of Hebei University of Science and Technology |
| Subjects: | |
| Online Access: | http://xuebao.hebust.edu.cn/hbkjdx/ch/reader/create_pdf.aspx?file_no=b202002005&flag=1&journal_ |