{ "id": "2501.03806", "version": "v1", "published": "2025-01-07T14:18:04.000Z", "updated": "2025-01-07T14:18:04.000Z", "title": "Bounds on $A_α$-eigenvalues using graph invariants", "authors": [ "João Domingos Gomes da Silva Junior", "Carla Silva Oliveira", "Liliana Manuela Gaspar Cerveira da Costa" ], "comment": "14 pages, 1 figure", "categories": [ "math.CO" ], "abstract": "In 2017, Nikiforov introduced the concept of the $A_{\\alpha}$-matrix, as a linear convex combination of the adjacency matrix and the degree diagonal matrix of a graph. This matrix has attracted increasing attention in recent years, as it serves as a unifying structure that combines the adjacency matrix and the signless Laplacian matrix. In this paper, we present some bounds for the largest and smallest eigenvalue of $A_{\\alpha}$-matrix involving invariants associated to graphs.", "revisions": [ { "version": "v1", "updated": "2025-01-07T14:18:04.000Z" } ], "analyses": { "keywords": [ "graph invariants", "adjacency matrix", "degree diagonal matrix", "linear convex combination", "signless laplacian matrix" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }