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Henri Poincaré (1854-1912)

Henri Poincaré was one of the last universal
mathematicians. He made contributions to the theory of
complex functions, to number theory, algebraic and
differential geometry, and to many branches of applied
mathematics, including celestial mechanics. He invented the
notion of an abstract dynamical system in order to attack the
question of the stability of the solar system, and, in the
course of this study, invented the field of topology. He
believed that all physical laws should be "invariant
under the Lorentz group." This insight, which expresses
the hidden symmetries of Maxwell's equations, leads logically
to Einstein's theory of special relativity when applied to
Newtonian mechanics.

Index

Last edit by
jac
, March 26, 1995.

Copyright © 1995 Department of Mathematics, University of
Utah