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The ∞-Categorical Reflection Theorem and Applications

2022/07/19 by Ragimov, Shaul, Schlank, Tomer M.
#Algebraic Topology (math.AT) #Category Theory (math.CT) #FOS: Mathematics

paper · doi:10.48550/arxiv.2207.09244

Abstract

In this paper we prove an ∞-categorical version of the reflection theorem of Adámek-Rosický. Namely, that a full subcategory of a presentable ∞-category which is closed under limits and κ-filtered colimits is a presentable ∞-category. We then use this theorem in order to classify subcategories of a symmetric monoidal ∞-category which are equivalent to a category of modules over an idempotent algebra.

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