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| | Samuel Eilenberg, September 30, 1913January 30, 1998 | By Hyman Bass, Henri Cartan, Peter Freyd, Alex Heller, and ... (Site not responding. Last check: 2007-10-14) |
 | | With Mac Lane he developed the theory of cohomology of groups, thus providing a proper setting for the remarkable theorem of Hopf on the homology of highly connected spaces. |
 | | Category theory also developed into a mathematical subject with its own honorable history and practitioners, beginning with Mac Lane and including, notably, F. Lawvere, Sammy's most remarkable student, who saw it as a foundation for all of mathematics and justified this intuition with such innovations as categorical semantics and topos theory. |
 | | He and Mac Lane had invented the subject, but to them it was always an applied subject, not an end in itself. |
| www.incywincy.com /default?catid=26921&cached=stills.nap.edu/html/biomems/seilenberg.html (6622 words) |
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