Kaleidoscopical Configurations in G-spaces

T. O. Banakh, O. Petrenko, I. V. Protasov +1

Let $G$ be a group and $X$ be a $G$-space. A subset $F$ of $X$ is called a kaleidoscopical configuration if there exists a surjective coloring $\chi :X\to Y$ such that the restriction…