Abstract
AbstractA graph is found which is 4-chromatic, has girth 5, and can be obtained by taking a setSof points in the plane and joining two of the points whenever their distance is 1. The points inSare not found explicitly, but their existence is demonstrated by use of a computer.Subject classification (Amer. Math. Soc. (MOS) 1970): 05 C 15, 05 C 10.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
