Little cubes and long knots
Little cubes and long knots
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小立方体和长结
DOI:
10.1016/j.top.2006.09.001
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
R. Budney
中科院分区:
文献类型:
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作者:
R. Budney
This paper gives a partial description of the homotopy type of K, the space of long knots in R3. The primary result is the construction of a homotopy equivalence K≃C2(P⊔{∗}) where C2(P⊔{∗}) is the free little 2-cubes object on the pointed space P⊔{∗}, where P⊂K is the subspace of prime knots, and ∗ is a disjoint base-point. In proving the freeness result, a close correspondence is discovered between the Jaco–Shalen–Johannson decomposition of knot complements and the little cubes action on K. Beyond studying long knots in R3we show that for any compact manifold M the space of embeddings of Rn×M in Rn×M with support in In×M admits an action of the operad of little (n+1)-cubes. If M=Dkthis embedding space is the space of framed long n-knots in Rn+k, and the action of the little cubes operad is an enrichment of the monoid structure given by the connected-sum operation.
DOI:
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发表时间:
2009
期刊:
影响因子:
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作者:
H. Irie;T. Otofuji;K.Fukaya;伊藤秀史;S.Koike;T. Funaki;金銅誠之;Yoshiaki Maeda
通讯作者:
Yoshiaki Maeda