The Symmetric Join Operad
classification
🧮 math.AT
math.CT
keywords
joinoperadsimplicialariseschainscoactscombinatorialcombinatorics
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The join operad arises from the combinatorial study of the iterated join of simplices. We study a suitable simplicial version of this operad which includes the symmetries given by permutations of the factors of the join. From this combinatorics we construct an E-infinity operad which coacts naturally on the chains of a simplicial set.
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