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math.CO2023
Laplacian eigenvalue distribution for unicyclic graphs
Sunyo Moon, Seungkook Park
Let be a unicyclic graph. In this paper, we provide an upper bound for the number of Laplacian eigenvalues of within the interval in terms of the diameter and the g…
math.CO2023
Bounds for the geometric-arithmetic index of unicyclic graphs
Sunyo Moon, Seungkook Park
We present lower and upper bounds for the geometric-arithmetic index of unicyclic graphs and provide extremal graphs for the corresponding bounds.