Isomorphic classification of the tensor products
Peter Chalov, Vyacheslav Zakharyuta (2011)
Studia Mathematica
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It is proved, using so-called multirectangular invariants, that the condition αβ = α̃β̃ is sufficient for the isomorphism of the spaces and . This solves a problem posed in [14, 15, 1]. Notice that the necessity has been proved earlier in [14].