Links not concordant to the Hopf link
نویسندگان
چکیده
We give new Casson–Gordon style obstructions for a two–component link to be topologically concordant to the Hopf link.
منابع مشابه
A two component link with Alexander polynomial one is concordant to the Hopf link
Let L be a two component link in S, an embedding of two disjoint circles which is topologically locally flat, that is, which extends to an embedding of two solid tori. The link has Alexander polynomial one, if, and only if, the first homology of the universal abelian cover of the complement of the link vanishes. If the link has Alexander polynomial one, then the linking number of the two compon...
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