Extending Free Circle Actions on Spheres to S 3 Actions

Bruce Conrad
1971 Proceedings of the American Mathematical Society  
Let X be a PL homotopy CPa+1 corresponding by Sullivan's classification to the element (Ni, at, Nt, • ■ • , out, Nk) of
doi:10.2307/2037282 fatcat:zjpjwe5bsrhtxkqvvfn3rgc2oy