Recognizing Quasi-Categorical Limits and Colimits in Homotopy Coherent Nerves
Recognizing Quasi-Categorical Limits and Colimits in Homotopy Coherent Nerves
复制标题
认识同伦相干神经中的准分类极限和余极限
DOI:
10.1007/s10485-020-09594-x
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发表时间:
2020
影响因子:
0.6
通讯作者:
Verity, Dominic
中科院分区:
文献类型:
--
作者:
Riehl, Emily;Verity, Dominic
In this paper we prove that various quasi-categories whose objects are-categories in a very general sense arecomplete: admitting limits indexed by all simplicial sets. This result and others of a similar flavor follow from a general theorem in which we characterize the data that is required to define a limit cone in a quasi-category constructed as a homotopy coherent nerve. Since all quasi-categories arise this way up to equivalence, this analysis covers the general case. Namely, we show that quasi-categorical limit cones may be modeled at the point-set level bypseudo homotopy limit cones, whose shape is governed by the weight for pseudo limits over a homotopy coherent diagram but with the defining universal property up to equivalence, rather than isomorphism, of mapping spaces. Our applications follow from the fact that the-categorical core of an-cosmos admits weighted homotopy limits for all flexible weights, which includes in particular the weight for pseudo cones.
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影响因子:
0.8
作者:
E. Riehl;Dominic R. Verity
通讯作者:
Dominic R. Verity
影响因子:
0.7
作者:
E. Riehl;Dominic R. Verity
通讯作者:
Dominic R. Verity
DOI:
10.1007/978-3-0348-9086-1_1
发表时间:
2021
期刊:
Lectures on Algebraic Topology
影响因子:
--
作者:
M. Aubry
通讯作者:
M. Aubry
DOI:
10.1016/j.aim.2015.04.021
发表时间:
2013
期刊:
arXiv: Category Theory
影响因子:
--
作者:
E. Riehl;Dominic R. Verity
通讯作者:
Dominic R. Verity
DOI:
10.2140/agt.2017.17.567
发表时间:
2015
期刊:
arXiv: Algebraic Topology
影响因子:
--
作者:
Ilan Barnea;Yonatan Harpaz;Geoffroy Horel
通讯作者:
Geoffroy Horel