On cospectral signed digraphs

• Date: 2019
• Main Authors: Bhat, M. A., Naikoo, T. A., Pirzada, S.
• Format: Article
• Language: English
• Published: Lugansk National Taras Shevchenko University 2019
• Subjects: spectrum of a signed digraph; cospectral signed digraphs; normal signed digraph; 05C30; 05C50
• Online Access: https://admjournal.luguniv.edu.ua/index.php/adm/article/view/218
• Journal Title: Algebra and Discrete Mathematics

The set of distinct eigenvalues of a signed digraph \(S\) together with their respective multiplicities is called its spectrum. Two signed digraphs of same order are said to be cospectral if they have the same spectrum. In this paper, we show the existence of integral, real and Gaussian cospectral s...