Embeddings of cartesian products of nearly bipartite graphs
✍ Scribed by Bojan Mohar; Tomaž Pisanski; Arthur T. White
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 384 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Surgical techniques are often effective in constructing genus embeddings of cartesian products of bipartite graphs. In this paper we present a general construction that is “close” to a genus embedding for cartesian products, where each factor is “close” to being bipartite. In specializing this to repeated cartesian products of odd cycles, we are able to obtain asymptotic results in connection with the genus parameter for finite abelian groups.
📜 SIMILAR VOLUMES
## Abstract Current graphs and a theorem of White are used to show the existence of almost complete regular bipartite graphs with quadrilateral embeddings conjectured by Pisanski. Decompositions of __K~n~__ and __K~n, n~__ into graphs with quadrilateral embeddings are discussed, and some thickness
## Given a Cartesian product G of nontrivial connected graphs G i and the n-dimensional base B de Bruijn graph D = D B (n), it is investigated whether or not G is a spanning subgraph of D. Special attention is given to graphs G 1 × • • • × G m which are relevant for parallel computing, namely, to
## Abstract In this paper, it will be shown that the isomorphism classes of regular orientable embeddings of the complete bipartite graph __K__~__n,n__~ are in one‐to‐one correspondence with the permutations on __n__ elements satisfying a given criterion, and the isomorphism classes of them are com
We prove uniqueness of decomposition of a finite metric space into a product of metric spaces for a wide class of product operations. In particular, this gives the positive answer to the long-standing question of S. Ulam: 'If U × U V × V with U , V compact metric spaces, will then U and V be isometr
## Abstract The __circular chromatic index__ of a graph __G__, written $\chi\_{c}'(G)$, is the minimum __r__ permitting a function $f : E(G)\rightarrow [0,r)$ such that $1 \le | f(e)-f(e')|\le r - 1$ whenever __e__ and $e'$ are incident. Let $G = H$ □ $C\_{2m +1}$, where □ denotes Cartesian product