224 research outputs found
Beno Eckmann Interview undated
No full textNOTE: to view these items please visit http://dynkincollection.library.cornell.eduUndated interview conducted by Eugene Dynkin with Beno Eckmann in Zurich, Switzerland
Beno Eckmann 1917-2008
No full textAm 25. November 2008 verstarb Beno Eckmann in seinem 92. Lebensjahr. Dieser Nachruf beleuchtet Leben und Werk dieses bedeutenden Vertreters der Algebra und der Topologi
Mathematical Survey Lectures 1943-2004
No full textTraces the career of Beno Eckmann, whose work ranges across a broad spectrum of mathematical concepts from topology and differential geometry through homological algebra to group theory. Eckmann has been associated with the Swiss Federal Institute of Technology Zurich (ETH), as student, lecturer, professor, and professor emeritus
Homotopy Theory in Abelian Categories
No full textThe concept of homotopy for homomorphisms of modules, suggested by analogy with fundamental properties of the topological homotopy, was developed by Eckmann and Hilton (3; 9; 10). In the present paper, this concept of homotopy is generalized to additive categories with an additional structure, and the theory of homotopy, including in particular various exact homotopy sequences, is established in full detail. It may be helpful to the reader to realize that most of our theorems, concepts, and constructions have their analogues in the homotopy theory of topological spaces. Many of these analogues may be found in a recent paper by Eckmann and Hilton (4). Explicit references will be given at various places in the paper.</jats:p
Social choice and topology a case of pure and applied mathematics
No full textAbstractThe existence of a social choice model on a preference space P is a topological, even homotopical problem. It has been solved 50 years ago, under different terminology, by the author and, a little later, jointly with T. Ganea and P.J. Hilton. P must be an H-space and either contractible or homotopy equivalent to a product of Eilenberg-MacLane spaces over the rationals
Einfache Isomorphietypen in lokalisierten Kategorien und einfache Homotopietypen von Polyedern
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