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On the slice-ribbon conjecture for Montesinos knots

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  • UserAna Lecuona, ENS Lyon
  • ClockWednesday 11 May 2011, 16:00-17:00
  • HouseMR13.

If you have a question about this talk, please contact Ivan Smith .

The slice-ribbon conjecture states that a knot in the 3-sphere is the boundary of an embedded disc in the 4-ball if and only if it bounds a disc in the 3-sphere which has only ribbon singularities. In this seminar we will prove the conjecture for a family of Montesinos knots. The proof is based on Donaldson’s diagonalization theorem for definite four manifolds.

This talk is part of the Differential Geometry and Topology Seminar series.

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