A complete characterization of graphs with exactly two positive eigenvalues
نویسندگان
چکیده
In 1977, Smith has characterized graphs with exactly one positive eigenvalue. Since then, many particular results related to two eigenvalues have emerged. this paper we conclude investigation by giving a full characterization of these graphs.
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ژورنال
عنوان ژورنال: Advances in Applied Mathematics
سال: 2023
ISSN: ['1090-2074', '0196-8858']
DOI: https://doi.org/10.1016/j.aam.2022.102457