Computer program for finding all possible cycles in graphs
β Scribed by Alexandru T. Balaban; Petru Filip; Teodor-Silviu Balaban
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 703 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0192-8651
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
A new approach is presented for identifying all possible cycles in graphs. Input data are the total numbers of vertices and edges, as well as the vertex adjacencies using arbitrary vertex numbering. A homeomorphically reduced graph (HRG) is constructed by ignoring vertices of degree less than three. The algorithm is based on successive generation of possible edgeβcombinations in the HRG. If a combination yields a cycle, it is either printed or stored and then finally printed in a list of all possible cycles arranged in the order of increasing ring size. A unique numbering of the cycle is used. The computer program is listed and exemplified. Computing times are given.
π SIMILAR VOLUMES
We present a linear-time algorithm that finds all edges and vertices in the intersection of all odd cycles in a given graph. We also show an application of our algorithm to a variant of the satisfiability problem of Boolean formulas.
## Abstract Given a connected directed graph and a spanning tree, we consider the problem of finding the set of fundamental cycles. In particular, for each cotree arc __i__ and tree arc __j__, we need to know whether or not __i__ and __j__ are in the same fundamental cycle, and if so, whether or no