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Algebraic and topological K-theory, relations with topology, commutative algebra, and operator algebras

3 votes

Trivial cobordism group in dimensions 1, 3, 7 related to H-space structures on the spheres i...

How about $n\ne 0,2,6$ instead of $n=1,3,7$? The Adams theorem on the vanishing of the stable Hopf invariant, which implies the non-existence of an H-structure on $S^n$ for $n\ne 1,3,7$, also implies …
Sergey Melikhov's user avatar
6 votes
0 answers
312 views

homotopy domination that splits a non-split epimorphism and still wants to be a homotopy equ...

Can a homotopy domination by a space supporting a free action of $G$ be promoted to a homotopy equivalence with such a space? As stated, this is not a serious question (multiply by an $EG$). But with …
Sergey Melikhov's user avatar