Abstract:Abstract. Künneth formula is to compute (co)-homology of A⊗B for known (co)-homology of the complexes A and B. In the ordinary case, this is done by using elementary homological methods in an abelian category. However, when we consider the bounded cochain complex with values in R and its structure as a real Banach space, the techniques of homological algebra for constructing Künneth type formulas on it are not effective. The most notable facts are the image of a morphism of Banach spaces is not necessarily clo… Show more
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