作者：Fiedorowicz Zbigniew*; Gubkin Steven; Vogt Rainer M
来源：Algebraic and Geometric Topology, 2012, 12(1): 469-492.
DOI：10.2140/agt.2012.12.469
摘要
This paper answers the following question: what algebraic structure on a category corresponds to an A(n) structure (in the sense of Stasheff) on the geometric realization of its nerve?
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