id author title date pages extension mime words sentence flesch summary cache txt hd76rx9419z Phillip Jedlovec Hopf Rings and the Ando-Hopkins-Strickland Theorem 1904 .txt text/plain 148 4 42 In particular, we prove that the so-called symmetry and cocycle relations hold in the E-homology of BU<2k> for any complex-orientable E and that these relations are the defining relations whenever E=HQ or k=1, 2, or 3. This new proof avoids the algebro-geometric perspective of Ando, Hopkins, and Strickland and instead uses the work of Ravenel, Wilson, and Yagita on the unstable homology of the truncated Brown-Peterson spectra, as well as the relationship between these spectra and BU<2k>. cache/hd76rx9419z.txt txt/hd76rx9419z.txt