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Self delta-equivalence of cobordant links |
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| Authors: | Yasutaka Nakanishi Tetsuo Shibuya Akira Yasuhara |
| Affiliation: | Department of Mathematics, Kobe University, Nada, Kobe 657-8501, Japan ; Department of Mathematics, Osaka Institute of Technology, Omiya 5-16-1, Asahi, Osaka 535-8585, Japan ; Department of Mathematics, Tokyo Gakugei University, Nukuikita 4-1-1, Koganei, Tokyo 184-8501, Japan |
| Abstract: | Self  -equivalence is an equivalence relation for links, which is stronger than the link-homotopy defined by J. Milnor. It is known that cobordant links are link-homotopic and that they are not necessarily self  -equivalent. In this paper, we will give a sufficient condition for cobordant links to be self  -equivalent. |
| Keywords: | $Delta$-move self $Delta$-equivalence link-homotopy cobordant |
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