On the Harmonic Index and the Signless Laplacian Spectral Radius of Graphs
نویسندگان
چکیده
منابع مشابه
The Randić index and signless Laplacian spectral radius of graphs
Given a connected graph G, the Randić index R(G) is the sum of 1 √ d(u)d(v) over all edges {u, v} of G, where d(u) and d(v) are the degree of vertices u and v respectively. Let q(G) be the largest eigenvalue of the singless Laplacian matrix of G and n = |V (G)|. Hansen and Lucas (2010) made the following conjecture:
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ژورنال
عنوان ژورنال: Kragujevac Journal of Mathematics
سال: 2021
ISSN: 2406-3045,1450-9628
DOI: 10.46793/kgjmat2102.299d