Invariants of knots, surfaces in R 3, and foliations von Plakhta, L. P., Плахта, Л. П.

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Restrictions on free actions of the alternating group $A_6$ on products of spheres von Plakhta, L. P., Плахта, Л. П.

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Cohomological correlations for sets of singular points of the actions of $Z/4$ group by $(S^n)^k$ von Plakhta , L. P., Плахта , Л. П.

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Sets of singular points of actions of finite groups by $(S^n)^k$ von Plakhta , L. P., Плахта , Л. П.

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