A method to determine algebraically integral Cayley digraphs on finite abelian group
DOI:
https://doi.org/10.11575/cdm.v15i2.62327Abstract
Researchers in the past have studied eigenvalues of Cayley digraphs or graphs. We are interested in characterizing Cayley digraphs on a finite commutative group $G$ whose eigenvalues are algebraic integers in a given number field $K.$ We succeed in finding a method to do so. The number of such Cayley digraphs are computed.
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