Strict \(\omega\)-categories are monadic over polygraphs (Q2826240)

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scientific article; zbMATH DE number 6637043
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Strict \(\omega\)-categories are monadic over polygraphs
scientific article; zbMATH DE number 6637043

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    11 October 2016
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    strict omega-category
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    polygraph (or computad)
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    monadicity
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    math.CT
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    Strict \(\omega\)-categories are monadic over polygraphs (English)
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    A direct proof is presented of the monadicity of the category of strict \(\omega\)-categories over the category of polygraphs (also known as computads). The proof uses similar steps as in [\textit{M. A. Batanin}, Contemp. Math. 230, 37--57 (1998; Zbl 0932.18004)] in the finitary case. The crucial difference is that here the category of polygraphs is no longer a presheaf category; arguments relying on that are replaced by a lifting result.
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