Cofibrations in Homotopy Theory

Details Cofibrations in Homotopy Theory Cofibrations in Homotopy Theory

2006-09-30

arxiv.org/abs/math/0610009v4

Mathematics

Algebraic Topology

Ams-latex, 158 pages. Corrections to Thm. 6.4.1 and Def. 7.2.5

Scientific paper

We define Anderson-Brown-Cisinski (ABC) cofibration categories, and construct homotopy colimits of diagrams of objects in ABC cofibration categories. Homotopy colimits for Quillen model categories are obtained as a particular case. We attach to each ABC cofibration category a left Heller derivator. A dual theory is developed for homotopy limits in ABC fibration categories and for right Heller derivators. These constructions provide a natural framework for 'doing homotopy theory' in ABC (co)fibration categories.

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