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IEICE TRANSACTIONS on transactions

On a Second Shortest k-Tuple of Edge-Disjoint Paths

Shoji SHINODA, Shuji TSUKIYAMA, Isao SHIRAKAWA

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Summary :

Let G be a directed graph containing n nodes and m edges, with each edge of nonnegative length. Given two specified nodes s and t, the length of a k-tuple of edge-disjoint paths from s to t in G is the sum of the lengths of all the edges on these k paths. A polynomial time algorithm for finding a shortest k-tuple of edge-disjoint paths from s to t in G has been devised. Based on this algorithm, this paper considers the problem of finding a second shortest k-tuple of edge-disjoint paths from s to t in G, for which an O (min[n3, nm log n])-time is described.

Publication
IEICE TRANSACTIONS on transactions Vol.E70-E No.10 pp.945-950
Publication Date
1987/10/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Graphs and Networks

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