The cyclic bar construction on A_\infty H-spaces

Details The cyclic bar construction on A_\infty H-spaces The cyclic bar construction on A_\infty H-spaces

2006-12-06

arxiv.org/abs/math/0612165v1

Mathematics

Algebraic Topology

24 pages, 8 figures

Scientific paper

We set up a general framework for enriching a subcategory of the category of noncommutative sets over a category C using products of the objects of a non-\Sigma operad P in \C. By viewing the simplicial category as a subcategory of the category of noncommutative sets in two different ways, we obtain two generalizations of simplicial objects. For the operad given by the Stasheff associahedra we obtain a model for the 2-sided bar construction in the first case and the cyclic bar and cobar construction in the second case. Using either the associahedra or the cyclohedra in place of the geometric simplices we can define the geometric realization of these objects.

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