The minimum exponent of the primitive digraphs on the given number of arcs

Primitive digraphs on \(n\) vertices, \(k\) arcs and girth \(s\) are considered. By \(a(n,k,s)\) we mean the minimum exponent taken over all such digraphs. We estimate the number \(a(n,k,s)\) using the Frobenius number for special values of \(k\) and \(s\).

Bibliographic Details
Main Author: Jolanta Rosiak
Format: Article
Language:English
Published: AGH Univeristy of Science and Technology Press 2004-01-01
Series:Opuscula Mathematica
Subjects:
Online Access:http://www.opuscula.agh.edu.pl/vol24/2/art/opuscula_math_2418.pdf
Description
Summary:Primitive digraphs on \(n\) vertices, \(k\) arcs and girth \(s\) are considered. By \(a(n,k,s)\) we mean the minimum exponent taken over all such digraphs. We estimate the number \(a(n,k,s)\) using the Frobenius number for special values of \(k\) and \(s\).
ISSN:1232-9274