Mathematics – Algebraic Topology
Scientific paper
2004-06-14
J. Homology, Homotopy and Appl., 7 No. 2 (2005), pp. 161-177.
Mathematics
Algebraic Topology
15 pages, 5 figures. This final version (3-19-05) features improved graphics and other minor improvements
Scientific paper
An A_\infty-bialgebra is a DGM H equipped with structurally compatible operations {\omega^{j,i} : H^{\otimes i} --> H^{\otimes j}} such that (H,\omega^{1,i}) is an A_\infty-algebra and (H,\omega^{j,1}) is an A_\infty-coalgebra. Structural compatibility is controlled by the biderivative operator Bd, defined in terms of two kinds of cup products on certain cochain algebras of pemutahedra over the universal PROP U = End(TH).
Saneblidze Samson
Umble Ronald
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