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JOURNALS // Matematicheskie Zametki // Archive

Mat. Zametki, 2010 Volume 87, Issue 3, Pages 417–428 (Mi mzm5187)

This article is cited in 10 papers

Distance Graphs with Large Chromatic Number and without Large Cliques

A. M. Raigorodskii, O. I. Rubanov

M. V. Lomonosov Moscow State University

Abstract: The present paper is devoted to the study of the properties of distance graphs in Euclidean space. We prove, in particular, the existence of distance graphs with chromatic number of exponentially large dimension and without cliques of dimension 6. In addition, under a given constraint on the cardinality of the maximal clique, we search for distance graphs with extremal large values of the chromatic number. The resulting estimates are best possible within the framework of the proposed method, which combines probabilistic techniques with the linear-algebraic approach.

Keywords: distance graph, chromatic number, clique, Stirling's formula, Euclidean space, probability space, random variable, expectation.

UDC: 519.174

Received: 04.06.2008

DOI: 10.4213/mzm5187


 English version:
Mathematical Notes, 2010, 87:3, 392–402

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© Steklov Math. Inst. of RAS, 2026