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   Coalition formation, mate selection and pairing behaviour of the Crested Francolin

   Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Johann H van Niekerk --- Department of Environmental Sciences, South Africa

   Transect field observations were conducted on the behaviour of Crested Francolin Dendroperdix sephaena to describe male coalitions in the Borakalalo National Park, North West province, South Africa during May, August, October and December 2008, and again in July 2009. Crested...

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2. 

   Total coalitions in graphs

   Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Saeid Alikhani --- Yazd University, Iran Davood Bakhshesh --- University of Bojnord, Iran Hamidreza Golmohammadi --- Novosibirsk State University, Russia

   We define a total coalition in a graph G as a pair of disjoint subsets A 1,A 2 ⊆ A that satisfy the following conditions: (a) neither A 1 nor A 2 constitutes a total dominating set of G, and...

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