## Abstract An application of conservative graphs to topological graph theory is indicated.
A note on coset graphs
โ Scribed by Ulrike Baumann
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 90 KB
- Volume
- 284
- Category
- Article
- ISSN
- 0025-584X
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
Coset graphs are a generalization of Cayley graphs. They arise in the construction of graphs and digraphs with transitive automorphism groups. Moreover, the consideration of coset graphs makes it possible to give an algebraic description of regular connected graphs of even degree. In this paper we consider the automorphism group of coset graphs with an edge set decomposed into oriented cycles and provide a characterization of subgroups of the automorphism group which preserve a given decomposition of the edge set. ยฉ 2011 WILEYโVCH Verlag GmbH & Co. KGaA, Weinheim
๐ SIMILAR VOLUMES
## Abstract We show that the problem raised by Boesch, Suffel, and Tindell of determining whether or not a graph is spanned by an Eulerian subgraph is NPโcomplete. We also note that there does exist a good algorithm for determining if a graph is spanned by a subgraph having positive even degree at
## Abstract We prove that there is an absolute constant __C__>0 so that for every natural __n__ there exists a triangleโfree __regular__ graph with no independent set of size at least \documentclass{article}\usepackage{amssymb}\usepackage{amsbsy}\usepackage[mathscr]{euscript}\footskip=0pc\pagestyle
## Abstract A graph __G__ having a perfect matching is called nโ__extendable__ if every matching of size __n__ of __G__ can be extended to a perfect matching. In this note, we show that if __G__ is an __n__โextendable nonbipartite graph, then __G__ + __e__ is (__n__ โ 1)โextendable for any edge e ฯต
## Abstract __Ki__โperfect graphs are a special instance of __F โ G__ perfect graphs, where __F__ and __G__ are fixed graphs with __F__ a partial subgraph of __G.__ Given __S__, a collection of __G__โsubgraphs of graph __K__, an __F โ G__ cover of __S__ is a set of __T__ of __F__โsubgraphs of __K__
## Abstract Whitney's theorem on line graphs is extended to the class of generalized line graphs defined by Hoffman.