Mathematical Survey Lectures 1943-2004

L’idée de dimension.- Topologie und Algebra.- Complex-analytic manifolds.- Homotopie et dualité.- Groupes d’homotopie et dualité.- Homotopy and cohomology theory.- Simple homotopy type and categories of fractions.- Some recent developments in the homology theory of groups.- Poincaré duality groups of dimension two are surface groups.- Continuous solutions of linear equations — An old problem, its ...