also:
added pointer to
which mentions the unit cofiber spectrum explicitly
]]>Have added (here) the proof of the short exact sequence
namely from this long exact sequence:
]]>and now I used this to give a complete, abstract and quick proof (here), by inspection of one big homotopy-pasting diagram, that the boundary operation is surjective.
]]>as a followup, I added the observation (here) that this realization of the representing spectrum of immediately gives the existence of the boundary cohomology operation to , just by stepping along the induced long cofiber sequence
]]>In the section on the representing spectrum (here) only the component spaces had been mentioned (following Conner-Floyd 66). I have added the brief remark that the corresponding spectrum is aka .
]]>starting something, on Conner-Floyd’s -bordism theory
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