Geodesic
Fractional domination in prisms
Discussiones Mathematicae. Graph Theory, Tome 27 (2007) no. 3, pp. 541-547.

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Mynhardt has conjectured that if G is a graph such that γ(G) = γ(πG) for all generalized prisms πG then G is edgeless. The fractional analogue of this conjecture is established and proved by showing that, if G is a graph with edges, then γ_f(G×K₂) > γ_f(G).
Keywords: fractional domination, graph products, prisms of graphs 
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Walsh, Matthew. Fractional domination in prisms. Discussiones Mathematicae. Graph Theory, Tome 27 (2007) no. 3, pp. 541-547. http://geodesic.mathdoc.fr/item/DMGT_2007_27_3_a9/

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[5] R.R. Rubalcaba and M. Walsh, Minimum fractional dominating functions and maximum fractional packing functions, in preparation.