Abstract. We discuss graphs with the vertex set ℤ² which are subgraphs of the 8-adjacency graph and have the property that certain natural cycles in these graphs are Jordan curves, i.e., separate ℤ² ...
PROC MODEL provides several features to aid in analyzing the structure of the model program. These features summarize properties of the model in various forms. The following Klein's model program is ...
Adjacency properties of extreme points of a convex polyhedron are discussed. In mathematical programming we are quite often faced with problems of characterizing the ...
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