๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A Note on Sub-Eulerian Graphs

โœ Scribed by F. Jaeger


Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
114 KB
Volume
3
Category
Article
ISSN
0364-9024

No coin nor oath required. For personal study only.

โœฆ Synopsis


Abstract

We present an algebraic proof of the following result: a set of edges of a multigraph G is contained in some cycle of G iff the set contains no odd cocycle of G (โ€œcycleโ€ means here: edge disjoint sum of elementary cycles). As a corollary we obtain the characterization of subโ€Eulerian graphs given by Boesch et al. [The spanning subgraphs of Eulerian grpahs. J. Graph Theory (1) (1977) 79โ€“84].


๐Ÿ“œ SIMILAR VOLUMES


A note on graphs spanned by Eulerian gra
โœ W. R. Pulleyblank ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 109 KB ๐Ÿ‘ 1 views

## 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 NPโ€complete. 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

A note on conservative graphs
โœ Arthur T. White ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 115 KB

## Abstract An application of conservative graphs to topological graph theory is indicated.

A note on coset graphs
โœ Ulrike Baumann ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 90 KB

## 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 th

A note on regular Ramsey graphs
โœ Noga Alon; Sonny Ben-Shimon; Michael Krivelevich ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 81 KB

## Abstract We prove that there is an absolute constant __C__>0 so that for every natural __n__ there exists a triangleโ€free __regular__ graph with no independent set of size at least \documentclass{article}\usepackage{amssymb}\usepackage{amsbsy}\usepackage[mathscr]{euscript}\footskip=0pc\pagestyle

A note on n-extendable graphs
โœ Qinglin Yu ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 249 KB

## 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__โ€extendable nonbipartite graph, then __G__ + __e__ is (__n__ โ€ 1)โ€extendable for any edge e ฯต

A note on Ki-perfect graphs
โœ Jason I. Brown; Derek G. Corneil; A. Ridha Mahjoub ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 348 KB

## Abstract __Ki__โ€perfect 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__โ€subgraphs of graph __K__, an __F โ€ G__ cover of __S__ is a set of __T__ of __F__โ€subgraphs of __K__