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Covering Sato-Levine invariants |
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| Authors: | Gui-Song Li |
| Institution: | Institute of Systems Science, Academia Sinica, Beijing 100080, China |
| Abstract: | Two covering versions of the Sato-Levine invariant are constructed which provide obstructions to certain two-component oriented links in the 3-sphere being link concordant to boundary links. These covering invariants are rational functions one of which detects both nonamphicheirality and noninvertibility of oriented links. |
| Keywords: | Links link concordance covering Sato-Levine invariants |
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