Seminars & Colloquia Calendar
Knots in circle bundles
Andrew Yarmola (Yale University)
Location: Hill 705
Date & time: Tuesday, 05 March 2024 at 4:00PM - 5:00PM
Seminar website: https://sites.google.com/view/rutgersgeometrytopologysem2324/home
In this talk we will be interested in knots in orientable circle bundles N over a genus g > 1 surfaces. Examples of such knots arise naturally when N is the unit tangent bundle of a surface and the knot is the set of tangents to a curve on the surface. We call such knots canonical or Legendrian. In joint work with Tommaso Cremaschi, we show that knots in N are determined by their complements. In the setting of unit tangent bundles, this demonstrates that canonical knots have homeomorphic complements if and only if their shadows differ by Reidemeister moves, (de)stabilizations, loops/cusps added by transvections, and mapping classes of the surface.
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