Isomorphic classification of the tensor products $ E_{0}( \exp \alpha i)\mathbin{ \widehat{\otimes }}E_{\infty }( \exp\beta j) $
Tom 204 / 2011
Studia Mathematica 204 (2011), 275-282
MSC: Primary 46A32; Secondary 46A04.
DOI: 10.4064/sm204-3-6
Streszczenie
It is proved, using so-called multirectangular invariants, that the condition $\alpha \beta =\tilde{\alpha}\tilde{\beta}$ is sufficient for the isomorphism of the spaces $E_{0}(\exp \alpha i)\mathbin{\widehat{\otimes}}E_{\infty }(\exp \beta j)$ and $E_{0}(\exp \tilde{\alpha}i)\mathbin{\widehat{\otimes}}E_{\infty }(\exp \tilde{\beta}j)$. This solves a problem posed in [14, 15, 1]. Notice that the necessity has been proved earlier in [14].
