Abstract
Abstract: We prove the existence in rational spaces of distance graphs without short odd cycles whose chromatic number increases exponentially with the dimension of the space.
Original language | English (US) |
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Pages (from-to) | 727-734 |
Number of pages | 8 |
Journal | Mathematical Notes |
Volume | 109 |
Issue number | 5-6 |
DOIs | |
State | Published - May 2021 |
Bibliographical note
Funding Information:The proof of Theorem was supported by the Russian Foundation for Basic Research (science grant no. 18-01-00355) and by the program “Leading Scientific Schools” (grant no. NSh-2540.2020.1). The proof of Corollary was supported by the Grant of the Government of the Russian Federation for the state support of scientific research supervised by leading scientists (agreement no. 075-15-2019-1926).
Publisher Copyright:
© 2021, Pleiades Publishing, Ltd.
Keywords
- chromatic number
- distance graph
- graph girth
- linear-algebraic method
ASJC Scopus subject areas
- General Mathematics