Sprache: Englisch
Verlag: Washington, 1930
Anbieter: Antiquariat Gerhard Gruber, Heilbronn, Deutschland
Erstausgabe
(25,5 x 17,5 cm). SS. (527)-554. Mit Abbildungen. Original-Broschur. Erste Ausgabe. - "A by-product of Lefschetz' work on fixed points was his duality theorem, which provided a bridge between the classical duality theorem of Poincaré and of Alexander. The Lefschetz duality theorem states that the p-dimensional Betti number of an orientable n-dimensional manifold M with regular boundary L equals the (n-p)-dimensional Betti number of M modulo L" (DSB). - Gut erhalten. - DSB 18, 534.