added pointer to:
fix title of Milnor book
Anonymous
]]>for what it’s worth, on the twisted Pontrjagin theorem (here) I have changed the wording from “straightforward generalization” to “fairly straightforward generalization” and added pointer to Cruickshanks’ Lemma-like Section 5.1, which, after all, takes him a full page.
]]>added a sub-section “Pontrjagin’s construction – In negative codimension” (here) with pointers to the “May-Segal theorem” (identifying Cohomotopy cocycle spaces with configuration spaces of points)
(I should really give May-Segal theorem it’s own entry, since it’s somewhat buried at configuration space of points. But not right now.)
]]>added section (here) with references on generalization of the Pontrjagin theorem to a twisted/equivariant Pontrjagin theorem.
(Currently the only items are Cruikshank’s, but maybe to be expanded)
]]>I have added pointer to Theorem C in
which seems to be the first place where the “Pontryagin-Thom theorem”, stably and for general tangential structure, is actually stated.
]]>added this pointer:
The Pontrjagin theorem must have been known to Pontrjagin at least by 1936, when he announced the computation of the second stem of homotopy groups of spheres:
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this is a bare list of references, to be !include
-ed into relevant entries
(various parts of this list have been contained at Cohomotopy, Cohomotopy charge map, Thom’s theorem, Pontryagin-Thom construction and elsewhere; this here now to ease harmonizing/completing these lists)
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