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» Bounds on the k-domination number of a graph

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CORR
2011
Springer

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Lower bounds on the obstacle number of graphs

14 years 8 months ago

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Given a graph G, an obstacle representation of G is a set of points in the plane representing the vertices of G, together with a set of connected obstacles such that two vertices ...

Padmini Mukkamala, János Pach, Döm&oum...

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ENDM
2002

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Bounds on the signed domination number of a graph

15 years 1 months ago

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Let G = (V, E) be a simple graph on vertex set V and define a function f : V {-1, 1}. The function f is a signed dominating function if for every vertex x V, the closed neighbor...

Ruth Haas, Thomas B. Wexler

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COMBINATORICS
1998

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An Improved Bound on the Minimal Number of Edges in Color-Critical Graphs

15 years 1 months ago

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Michael Krivelevich

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