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This book contains a collection of articles summarizing the state of knowledge in a large portion of modern homotopy theory. A call for articles was made on the occasion of an emphasis semester organized by the Centre de Recerca Matemtica in Bellaterra (Barcelona) in 1998. The main topics treated in the book include abstract features of stable and unstable homotopy, homotopical localizations, p-compact groups, H-spaces, classifying spaces for proper actions, cohomology of discrete groups, K-theory and other generalized cohomology theories, configuration spaces, and Lusternik-Schnirelmann category. The book is addressed to all mathematicians interested in homotopy theory and in geometric aspects of group theory. New research directions in topology are highlighted. Moreover, this informative and educational book serves as a welcome reference for many new results and recent methods.
The papers in this collection, all fully refereed, original papers, reflect many aspects of recent significant advances in homotopy theory and group cohomology. From the Contents: A. Adem: On the geometry and cohomology of finite simple groups.- D.J. Benson: Resolutions and Poincar duality for finite groups.- C. Broto and S. Zarati: On sub-A*-algebras of H*V.- M.J. Hopkins, N.J. Kuhn, D.C. Ravenel: Morava K-theories of classifying spaces and generalized characters for finite groups.- K. Ishiguro: Classifying spaces of compact simple lie groups and p-tori.- A.T. Lundell: Concise tables of James numbers and some homotopyof classical Lie groups and associated homogeneous spaces.- J.R. Martino: Anexample of a stable splitting: the classifying space of the 4-dim unipotent group.- J.E. McClure, L. Smith: On the homotopy uniqueness of BU(2) at the prime 2.- G. Mislin: Cohomologically central elements and fusion in groups.
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L'abril de 1938, pocs dies després de l'entrada de les tropes franquistes a Lleida i Balaguer, el govern de la República, en un intent desesperat per frenar l'avançament de l'exèrcit rebel a Catalunya, va ordenar la mobilització de les lleves del 27, 28 i 41. Els joves de les dues primeres tenien trenta i trenta-un anys, molts casats i enfillats, però els nois del 41, només tenien setze o disset anys; eren l'anomenada lleva del Biberó. Tots barrejats, amb una diferència de tretze i catorze anys, i els del Biberó, sense cap experiència militar, foren enviats als fronts del Segre i de l'Ebre. Lluís Randé i Inglès, un jove del Catllar (el Tarragonès), casat i amb la muller a punt...
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