| Autor: |
Dijian Wang, Dongdong Gao |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
AIMS Mathematics, Vol 8, Iss 3, Pp 7021-7031 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2473-6988 |
| DOI: |
10.3934/math.2023354?viewType=HTML |
| Popis: |
A connected graph with n vertices and m edges is called k-cyclic graph if k=m−n+1. We call a signed graph is Laplacian integral if all eigenvalues of its Laplacian matrix are integers. In this paper, we will study the Laplacian integral k-cyclic signed graphs with k=0,1,2, 3 and determine all connected Laplacian integral signed trees, unicyclic, bicyclic and tricyclic signed graphs. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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