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Segal spaces, spans, and semicategories
Proceedings of the American Mathematical Society ( IF 1 ) Pub Date : 2021-01-13 , DOI: 10.1090/proc/15197
Rune Haugseng

Abstract:We show that Segal spaces, and more generally category objects in an $ \infty $-category $ \mathcal {C}$, can be identified with associative algebras in the double $ \infty $-category of spans in $ \mathcal {C}$. We use this observation to prove that ``having identities'' is a property of a non-unital $ (\infty ,n)$-category.


中文翻译:

符号空间,跨度和半类别

摘要:我们表明,西格尔的空间,一般多类别对象在$ \ infty $-category ,可以在双结合代数来识别在跨度的-category 。我们使用这一观察来证明``具有身份''是非单一类别的属性。 $ \ mathcal {C} $$ \ infty $ $ \ mathcal {C} $ $(\ infty,n)$
更新日期:2021-02-08
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