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cohomological complex of topological vector spaces∗ bci1† 2013-03-22 1:29:53 Definition 0.1. A cohomological complex of topological vector spaces is a pair (E • , d) where (E • = (E q )q∈Z is a sequence of topological vector spaces and d = (dq )q∈Z is a sequence of continuous linear maps dq from E q into E q+1 which satisfy dq ◦ dq+1 = 0. Remarks • The dual complex of a cohomological complex (E • , d) of topological vector spaces is the homological complex (E•0 , d0 ), where (E•0 = (Eq0 )q∈Z with Eq0 being the strong dual of E q and d0 = (d0q )q∈Z , and also with d0q being the transpose map of dq . • A cohomological complex of topological vector spaces (TVS) is a specific case of a cochain complex, which is the dual of the concept of chain complex. ∗ hCohomologicalComplexOfTopologicalVectorSpacesi created: h2013-03-2i by: hbci1i version: h40902i Privacy setting: h1i hDefinitioni h55N99i h81T70i h32S20i h12G10i h55N33i h13D25i h18G35i † This text is available under the Creative Commons Attribution/Share-Alike License 3.0. You can reuse this document or portions thereof only if you do so under terms that are compatible with the CC-BY-SA license. 1