On natural isomorphisms of cycle permutation graphs
β Scribed by Sam Stueckle
- Publisher
- Springer Japan
- Year
- 1988
- Tongue
- English
- Weight
- 518 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0911-0119
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π SIMILAR VOLUMES
In this paper, we construct a cycle permutation graph as a covering graph over the dumbbell graph, and give a new characterization of when two given cycle permutation graphs are isomorphic by a positive or a negative natural isomorphism. Also, we count the isomorphism classes of cycle permutation gr
## Abstract A polynomial time algorithm for testing isomorphism of permutation graphs (comparability graphs of 2βdimensional partial orders) is described. It operates by performing two types of simplifying transformations on the graph; the contraction of duplicate vertices and the contraction of un
## Abstract This paper considers conditions ensuring that cycleβisomorphic graphs are isomorphic. Graphs of connectivity β©Ύ 2 that have no loops were studied in [2] and [4]. Here we characterize all graphs __G__ of connectivity 1 such that every graph that is cycleβisomorphic to __G__ is also isomor
A Cayley graph Cay(G, S) of a group G is called a CI-graph if whenever T is another subset of G for which Cay(G, S) βΌ = Cay(G, T ), there exists an automorphism Ο of G such that S Ο = T . For a positive integer m, the group G is said to have the m-CI property if all Cayley graphs of G of valency m a