L'Application Canonique J:H2(X) H2(X)->H1(X X) n'est pas Surjective en Général
Omran Kouba
math.FAarXiv:math/0401335
Abstract
We introduce the H1-projective property, and use it to construct a Banach space X such that the natural map J:H2(X) H2(X) -> H1(X X) is not onto.
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