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SUMMARY:Ahmad Issa (UBC)
DTSTART:20201009T220000Z
DTEND:20201009T230000Z
DTSTAMP:20260423T035711Z
UID:caltechGT/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/caltechGT/2/
 ">Symmetric knots and the equivariant 4-ball genus</a>\nby Ahmad Issa (UBC
 ) as part of Caltech geometry/topology seminar\n\n\nAbstract\nGiven a knot
  K in the 3-sphere\, the 4-genus of K is the minimal genus of an orientabl
 e surface embedded in the 4-ball with boundary K. If the knot K has a symm
 etry (e.g. K is periodic or strongly invertible)\, one can define the equi
 variant 4-genus by only minimising the genus over those surfaces in the 4-
 ball which respect the symmetry of the knot. I'll discuss some ongoing wor
 k with Keegan Boyle on trying to understanding the equivariant 4-genus.\n
LOCATION:https://researchseminars.org/talk/caltechGT/2/
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