BIRS Workshop Lecture Videos
A conjectural "if and only if criterion" for topological concordance to the unknot and the Hopf link Friedl, Stefan
In 2004 Peter Teichner and I stated a possible "if and only if criterion" for topological concordance to the unknot. I will recall that conjecture and I will give the evidence for the conjecture. I will also report on rather preliminary work with Patrick Orson on extending this conjecture to the concordance to the Hopf link. The audience should not expect any theorems. Lively questions and comments are warmly welcome.
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