Lifting accessible model structures
Lifting accessible model structures
复制标题
提升可访问的模型结构
DOI:
10.1112/topo.12123
复制
发表时间:
2020
影响因子:
1.1
通讯作者:
Riehl, Emily
中科院分区:
文献类型:
--
作者:
Garner, Richard;Kędziorek, Magdalena;Riehl, Emily
A Quillen model structure is presented by an interacting pair of weak factorization systems. We prove that in the world of locally presentable categories, any weak factorization system withaccessiblefunctorial factorizations can be lifted along either a left or a right adjoint. It follows thataccessible model structureson locally presentable categories – ones admitting accessible functorial factorizations, a class that includes all combinatorial model structures but others besides – can be lifted along either a left or a right adjoint if and only if an essential ‘acyclicity’ condition holds. A similar result was claimed in a paper of Hess–Kędziorek–Riehl–Shipley, but the proof given there was incorrect. In this note, we explain this error and give a correction, and also provide a new statement and a different proof of the theorem which is more tractable for homotopy‐theoretic applications.
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