On cospectral signed digraphs

• Published in: Algebra and Discrete Mathematics
• Date: 2019
• Main Authors: Bhat, M.A., Naikoo, T.A., Pirzada, S.
• Format: Article
• Language: English
• Published: Інститут прикладної математики і механіки НАН України 2019
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/188432
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: On cospectral signed digraphs / M.A. Bhat, T.A. Naikoo, S. Pirzada // Algebra and Discrete Mathematics. — 2019. — Vol. 27, № 2. — С. 191–201. — Бібліогр.: 10 назв. — англ.

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 signe...