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Total domination and the Caccetta–Häggkvist conjecture

✍ Scribed by Patrick St-Louis; Bernard Gendron; Alain Hertz


Book ID
119227576
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
283 KB
Volume
9
Category
Article
ISSN
1572-5286

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Proof of a conjecture of Häggkvist on cy
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A graph G of order n is a ck-graph if for every pair of d~tinct, nonadlacenl veJtlces x and y' d(x)+d(y)>~n+k where d(v) denotes the degree of a vertex v In this paper, we prove the