Operads of decorated cliques II: Noncrossing cliques
arxiv(2024)
摘要
A complete study of an operad NCℳ of noncrossing
configurations of chords introduced in previous work of the author is
performed. This operad is defined on the linear span of all noncrossing
ℳ-cliques. These are noncrossing configurations of chords with arcs
labeled by a unitary magma ℳ. The magmatic product of ℳ
intervenes for the computation of the operadic composition of
ℳ-cliques. We show that this operad is binary, quadratic, and
Koszul by considering techniques coming from rewrite systems on trees. We also
compute a presentation for its Koszul dual. Finally, we explain how
NCℳ allows one to obtain alternative constructions of
already known operads like operads of formal fractions and the operad of
bicolored noncrossing configurations.
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