%0 Journal Article %T Trivial I^¦Ó -fibrations of the multiplication maps for monads O, OH and OS %A L. I. Karchevska %A T. M. Radul %J Matematychni Studii %D 2012 %I Lviv Mathematical Society, VNTL Publishers %X In this paper we investigate when the multiplication maps of monads O, OH and OS are trivial fibrations with fibers homeomorphic to a Tychonov cube or a Hilbert cube. %K Trivial fibration %K Tychonov cube %K monad %U http://matstud.org.ua/texts/2012/37_2/193-202.pdf