More on the anti-automorphism of the Steenrod algebra
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چکیده
has a topological interpretation too: If K is a finite complex then the homology of the Spanier-Whitehead dual DK+ of K+ is canonically isomorphic to the cohomology of K . Under this isomorphism the left action by θ ∈ A on H∗(K) corresponds to the right action of χθ ∈ A on H∗(DK+). In 1974 Davis [3] proved that sometimes much more efficient ways exist to compute χSqn ; for example (3) χSq2 r−1 = Sq2 r−1 χSq2 r−1−1 ,
منابع مشابه
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تاریخ انتشار 2011