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SUMMARY:Marc Kegel (Humboldt University Berlin)
DTSTART:20210126T131500Z
DTEND:20210126T144500Z
DTSTAMP:20260422T151807Z
UID:GoeTop/16
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GoeTop/16/">
 Characterizing slopes for Legendrian knots</a>\nby Marc Kegel (Humboldt Un
 iversity Berlin) as part of Göttingen topology and geometry seminar\n\n\n
 Abstract\nCharacterizing slopes for Legendrian knots:\nFrom a given Legend
 rian knot K in the standard contact 3-sphere\, we can construct a symplect
 ic 4-manifold W_K by attaching a Weinstein 2-handle along K to the 4-ball.
  In this talk\, we will construct non-equivalent Legendrian knots K and K'
  such that W_K and W_K' are equivalent. On the other hand\, we will discus
 s an example of a Legendrian knot K that is characterized by its symplecti
 c 4-manifold W_K. This is based on joint work with Roger Casals and John E
 tnyre.\nNo previous knowledge on contact geometry is assumed. We will disc
 uss all relevant notions in detail.\n
LOCATION:https://researchseminars.org/talk/GoeTop/16/
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