Doubly slice knots and metabelian obstructions
Doubly slice knots and metabelian obstructions
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双片结和代谢障碍
DOI:
10.1142/s1793525321500229
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发表时间:
2021
影响因子:
0.8
通讯作者:
Orson P
中科院分区:
文献类型:
--
作者:
Orson P
An-dimensional knotis called doubly slice if it occurs as the cross section of some unknotted-dimensional knot. For everyit is unknown which knots are doubly slice, and this remains one of the biggest unsolved problems in high-dimensional knot theory. For, we use signatures coming from-cohomology to develop new obstructions for-dimensional knots with metabelian knot groups to be doubly slice. For each, we construct an infinite family of knots on which our obstructions are nonzero, but for which double sliceness is not obstructed by any previously known invariant.
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DOI:
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发表时间:
1956
期刊:
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DOI:
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1969
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