## Abstract We present a planar hypohamiltonian graph on 48 vertices, and derive some consequences. © 2007 Wiley Periodicals, Inc. J Graph Theory 55: 338–342, 2007
On planar hypohamiltonian graphs
✍ Scribed by Gábor Wiener; Makoto Araya
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 144 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0364-9024
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✦ Synopsis
We present a planar hypohamiltonian graph on 42 vertices and (as a corollary) a planar hypotraceable graph on 162 vertices, improving the bounds of Zamfirescu and Zamfirescu and show some other consequences. We also settle the open problem whether there exists a positive integer N, such that for every integer n ≥ N there exists a planar hypohamiltonian/hypotraceable graph on n vertices.
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