(If fx =f2, we let the fx component be (m - km) and all other components be zero.) Let B be the subgroup of N generated by all such elements for all such commutative diagrams. Define TV as an F-module by lG/KN = lG/KMifK G ff, lG/ HN = N/B. Ifanbsp;...
|Title||:||Transactions of the American Mathematical Society|
|Author||:||American Mathematical Society|