Title of article
Coalescence of Difans and Diwheels
Author/Authors
Bravo, Diego Universidad de Los Andes - Facultad de Ciencias - Departamento de Matematicas, Venezuela , Rada, Juan Universidad de Los Andes - Facultad de Ciencias - Departamento de Matematicas, Venezuela
From page
49
To page
56
Abstract
A directed graph G is nonderogatory if its adjacency matrix A is nonderogatory, i.e., the characteristic polynomial of A is equal to the minimal polynomial of A. We analyze the problem whether the coalescence of difans and diwheels is nonderogatory. Also, a formula for the characteristic polynomial of the coalescence of two directed graphs is presented.
Keywords
Nonderogatory digraphs , coalescence of diagraph.
Journal title
Bulletin of the Malaysian Mathematical Sciences Society
Journal title
Bulletin of the Malaysian Mathematical Sciences Society
Record number
2672463
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