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Free algebras through Day convolution

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 نشر من قبل Rune Haugseng
 تاريخ النشر 2020
  مجال البحث
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Building on the foundations in our previous paper, we study Segal conditions that are given by finite products, determined by structures we call cartesian patterns. We set up Day convolution on presheaves in this setting and use it to give conditions under which there is a colimit formula for free algebras and other left adjoints. This specializes to give a simple proof of Luries results on operadic left Kan extensions and free algebras for symmetric $infty$-operads.



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