Proceedings of the American Mathematical Society, Vol. 132, No. 6 (Jun., 2004), pp. 1613-1619 (7 pages) We show that the projective module P over a cellular algebra is injective if and only if the ...
Partially answering a question of A. Ya. Helemskii, we show that a von Neumann algebra is injective if and only if all its normal dual Banach left modules are 1-injective in the sense of the homology ...
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