3 papers
math.AT2023
On the Passi and the Mal'cev functors
Geoffrey Powell
The author has shown that the category of analytic contravariant functors on , the category of finitely-generated free groups, is equivalent to the category of left mo…
math.AT2014
Truncated projective spaces, Brown-Gitler spectra and indecomposable A(1)-modules
Geoffrey Powell
A structure theorem for bounded-below modules over the subalgebra A(1) of the mod 2 Steenrod algebra generated by Sq^1, Sq^2 is proved; this is applied to prove a classification th…
math.AT2010
On the double transfer and the f-invariant
Geoffrey Powell
The purpose of this paper is to investigate an algebraic version of the double complex transfer, in particular the classes in the two-line of the Adams-Novikov spectral sequence wh…