##
*
S. A. Grigorian, R. N. Gumerov, A. V. Kazantsev
*

Group structure in finite coverings

of compact solenoidal groups

*(Lobachevskii Journal of Mathematics,
Vol.6, pp.39-46 *

Let $ p:X \rightarrow G $ be an n - fold covering of a compact
solenoidal group $G$ by a connected topological space $X$. We prove that there
exists a group structure in $X$ turning $p$ into a homomorphism between
compact abelian groups.

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