Geodesic
Concordance Invariance of Levine-Tristram Signatures of Links
Documenta mathematica, Tome 22 (2017), pp. 25-43.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

We determine for which complex numbers on the unit circle the Levine-Tristram signature and the nullity give rise to link concordance invariants.
Classification : 57M25, 57M27, 57N70
Keywords: link concordance, Levine-Tristram signatures, nullity 
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     author = {Nagel, Matthias and Powell, Mark},
     title = {Concordance {Invariance} of {Levine-Tristram} {Signatures} of {Links}},
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Nagel, Matthias; Powell, Mark. Concordance Invariance of Levine-Tristram Signatures of Links. Documenta mathematica, Tome 22 (2017), pp. 25-43. http://geodesic.mathdoc.fr/item/DOCMA_2017__22__a51/