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Issue No. 03 - March (1969 vol. 18)
ISSN: 0018-9340
pp: 270-272
A (d, k, ? graph is defined as a graph in which every vertex has degree at most d, and every pair of vertices are joined by ? edge-disjoint paths, each of length at most k. The order of a graph is the number of vertices it contains. N(d, k, ?) is the number that is the largest of all the orders of ( d, k, ?) graphs. Elspas has investigated , k, p? graphs when k= 2 and when k = .? In this paper, (d, k, ?) graphs for d = ? are constructed, yielding lower bounds on N(d, k, d). Further, for d= k = ? = 3, N( d, k, ?) is determined and the graphs attaining this order are characterized. ( d, k, ?) graphs are potentially useful in determining how propagation delay, terminal packing factors, and possible blocking conditions may constrain a modeled digital system.
Degree, diameter, graph, network, path, redundancy.

H. Quaife, "On (d, k, ?) Graphs," in IEEE Transactions on Computers, vol. 18, no. , pp. 270-272, 1969.
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