Catn-groups in homological and homotopical algebra: Part I
Simona Paoli (6/8/03)
Catn-groups are a type of higher dimensional categorical structure; they were introduced in 1982 as algebraic model of n-types. A connection between these structures and homological algebra was established at that time. Recent developments link Catn-groups with homotopical algebra. After recalling this background, we will introduce a (co)homology theory of crossed modules with coefficients in a pi_1-module, and we will describe its main properties.
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Steve Lack Last modified: Wed Aug 6 13:15:09 EST 2003