Person: Rosenberg, Fabian
Saunders MacLane: Proved quaternion multiplication, discovered Hopf invariant, founded theory of homotopy groups, & co-wrote Homology Theory of Fibered Spaces.
Mathematical Profile (Excerpt):
Born 2 February 1865, Birmingham, England.
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Adapted from other CC BY-SA 4.0 Sources:
- O’Connor, John J; Robertson, Edmund F: MacTutor History of Mathematics Archive