## Blokhuis, A. and A.E. Brouwer, Locally K,,, or Petersen graphs, Discrete Mathematics 106/107 (1992) 53-60. We determine all graphs with the property that each of its local graphs (point neighbourhoods) is isomorphic to either the Petersen graph or the complete bipartite graph K,,,. This answer
Locally petersen graphs
β Scribed by J. I. Hall
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 684 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0364-9024
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β¦ Synopsis
Abstract
A graph Ξ is locally Petersen if, for each point t of Ξ, the graph induced by Ξ on all points adjacent to t is isomorphic to the Petersen graph. We prove that there are exactly three isomorphism classes of connected, locally Petersen graphs and further characterize these graphs by certain of their parameters.
π SIMILAR VOLUMES
Any 3-edge-connected graph with at most 10 edge cuts of size 3 either has a spanning closed trail or it is contractible to the Petersen graph.
## Abstract The generalized Petersen graph __GP__ (__n, k__), __n__ β€ 3, 1 β₯ __k__ < __n__/2 is a cubic graph with vertexβset {u~j~; i Ο΅ Z~n~} βͺ {v~j~; i Ο΅ Z~n~}, and edgeβset {u~i~u~i~, u~i~v~i~, v~i~v~i+k, iΟ΅~Z~n~}. In the paper we prove that (i) __GP__(__n, k__) is a Cayley graph if and only if
We prove the following theorem. Let G be a graph of order n and let W V(G). If |W | 3 and d G (x)+d G ( y) n for every pair of non-adjacent vertices x, y # W, then either G contains cycles C 3 ,
In thiq paper we prove the following: let G be a graph with k edges, wihich js (k -l)-edgeconnectd, and with all valences 3k k. Let 1 c r~ k be an integer, then (3 -tins a spanning subgraph H, so that all valences in H are ar, with no more than r~/r:] edges. The proof is based on a useful extension