An ω-category with all Duals is an ω-groupoid
An ω-category with all Duals is an ω-groupoid
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包含所有对偶的 ω-范畴是 ω-群群
DOI:
10.1007/s10485-007-9081-8
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发表时间:
2007
影响因子:
0.6
通讯作者:
Eugenia Cheng
中科院分区:
文献类型:
--
作者:
Eugenia Cheng
We make a definition ofω-precategory which should underlie any definition of weakω-category. We make a precise definition of pseudo-invertible cells in this setting. We show that in anω-precategory with all weak duals, every cell is pseudo-invertible. We deduce that in any “sensible” theory ofω-categories, anω-category with all weak duals is anω-groupoid. We discuss various examples and open questions involving higher-dimensional tangles and cobordisms.