The main purpose of part I of these notes is to develop for a ring R a functional notion of R-completion of a space X. For R=Zp and X subject to usual finiteness condition, the R-completion coincides up to homotopy, with the p-profinite completion of Quillen and Sullivan; for R a subring of the rationals, the R-completion coincides up to homotopy, with the localizations of Quillen, Sullivan and others. In part II of these notes, the authors have assembled some results on towers of fibrations, cosimplicial spaces and homotopy limits which were needed in the discussions of part I, but which are of some interest in themselves.
Publisher: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG ISBN: 9783540061052 Number of pages: 352 Weight: 608 g Dimensions: 235 x 155 x 18 mm Edition: 1st ed. 1972. 2nd printing 1987
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