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pro vyhledávání: '"57N20, 22A26"'
Autor:
Banakh, Taras
Let $M$ be an ANR space and $X$ be a homotopy dense subspace in $M$. Assume that $M$ admits a continuous binary operation $*:M\times M\to M$ such that for every $x,y\in M$ the inclusion $x*y\in X$ holds if and only if $x,y\in X$. Assume also that the
Externí odkaz:
http://arxiv.org/abs/2102.03648
