Virtual Homotopy
Virtual Homotopy
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虚拟同伦
DOI:
10.1142/s0218216510008200
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
L. Kauffman
中科院分区:
文献类型:
--
作者:
H. Dye;L. Kauffman
Two welded (respectively virtual) link diagrams are homotopic if one may be transformed into the other by a sequence of extended Reidemeister moves, classical Reidemeister moves, and self crossing changes. In this paper, we extend Milnor’s µ and ¯ µ invariants to welded and virtual links. We conclude this paper with several examples, and compute the µ invariants using the Magnus expansion and Polyak’s skein relation for the µ invariants.
DOI:
--
发表时间:
2004
期刊:
Kobe Journal of Mathematics 21
影响因子:
--
作者:
Anthony Bak;Masaharu Morimoto;Takashi Matsuoka;S.Kamada
通讯作者:
S.Kamada