Using a technique developed by A. Nilli (1991, Discrete Math. 91, 207 210), we estimate from above the Cheeger number of a finite connected graph G of small degree (2(G) 5) admitting sufficiently distant edges. ## 2001 Academic Press Let G=(V(G), E(G)) be a finite connected graph. The Cheeger numb
The Order Upper Bound on Parity Embedding of a Graph
β Scribed by Thomas Zaslavsky
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 398 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0095-8956
No coin nor oath required. For personal study only.
β¦ Synopsis
A graph 1 is parity embedded in a surface if a closed path in the graph is orientation preserving or reversing according to whether its length is even or odd. The parity demigenus of 1 is the minimum of 2&/(S) (where / is the Euler characteristic) over all surfaces S in which 1 can be parity embedded. We calculate the maximum parity demigenus over all graphs, simple or not, of order n.
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