Title
Ǩp,q-factorization of symmetric complete tripartite digraphs
Abstract
Let Kn1,n2,n3∗ denote the symmetric complete tripartite digraph with partite sets V1,V2,V3 of n1,n2,n3 vertices each, and let Ǩp,q denote the complete bipartite digraph in which all arcs are directed away from p start-vertices in Vi to q end-vertices in Vj with {i,j}⊂{1,2,3}. We show that a necessary condition for the existence of a Ǩp,q-factorization of Kn1,n2,n3∗ is n1=n2=n3≡0(moddp′q′(p′+q′)) for p′+q′≡1,2(mod3) and n1=n2=n3≡0(moddp′q′(p′+q′)/3),2n1⩾pp′,2n1⩾qq′ for p′+q′≡0(mod3), where d=(p,q),p′=p/d,q′=q/d. Several sufficient conditions are also given.
Year
DOI
Venue
2001
10.1016/S0012-365X(00)00339-3
Discrete Mathematics
Keywords
DocType
Volume
Bigraph-factorization,Symmetric complete tripartite digraph
Journal
231
Issue
ISSN
Citations 
1
0012-365X
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Kazuhiko Ushio15946.38
Yoshikazu Ohtsubo223.00