Abstract
Given a network G = (V,E) and two vertices s and t, we consider the problem of finding two disjoint paths from s to t such that the length of the longer path is minimized. The problem has several variants: The paths may be vertex-disjoint or arc-disjoint and the network may be directed or undirected. We show that all four versions as well as some related problems are strongly NP-complete. We also give a pseudo-polynomial-time algorithm for the acyclic directed case.
Original language | English |
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Pages (from-to) | 105-115 |
Number of pages | 11 |
Journal | Discrete Applied Mathematics |
Volume | 26 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 1990 |
Externally published | Yes |
ASJC Scopus subject areas
- Discrete Mathematics and Combinatorics
- Applied Mathematics