Decomposition of Complete Bipartite Multigraphs Into Paths and Cycles Having k Edges

Shanmugasundaram Jeevadoss ; Appu Muthusamy

Discussiones Mathematicae Graph Theory, Tome 35 (2015), p. 715-731 / Harvested from The Polish Digital Mathematics Library

Résumé

We give necessary and sufficient conditions for the decomposition of complete bipartite multigraph Km,n(λ) into paths and cycles having k edges. In particular, we show that such decomposition exists in Km,n(λ), when λ ≡ 0 (mod 2), [...] and k(p + q) = 2mn for k ≡ 0 (mod 2) and also when λ ≥ 3, λm ≡ λn ≡ 0(mod 2), k(p + q) =λ_mn, m, n ≥ k, (resp., m, n ≥ 3k/2) for k ≡ 0(mod 4) (respectively, for k ≡ 2(mod 4)). In fact, the necessary conditions given above are also sufficient when λ = 2.

Détail

Publié le : 2015-01-01

Zbl 1327.05174

EUDML-ID : urn:eudml:doc:276024

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