Kaleidoscopical configurations in groups
Journal: Matematychni Studii (Vol.36, No. 2)Publication Date: 2011-11-01
Authors : Protasov I. V.; Slobodianiuk S.;
Page : 115-118
Keywords : kaleidoscopical configuration; T-sequence; rigid subset;
Abstract
A subset $A$ of a group $G$ is called a kaleidoscopical configuration if there exists a surjective coloring $chicolon Xrightarrow kappa$ such that the restriction $chi|gA$ is a bijection for each $gin G$. We give two topological constructions of kaleidoscopical configurations and show that each infinite subset of an Abelian group contains an infinite kaleidoscopical configuration.
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