(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 |

Publisher | : | - 1975 |

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