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SUMMARY:Ciprian Manolescu (Stanford University)
DTSTART:20241127T133000Z
DTEND:20241127T150000Z
DTSTAMP:20260423T041341Z
UID:GT_IPM/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GT_IPM/1/">G
 eneralizations of Rasmussen’s invariant</a>\nby Ciprian Manolescu (Stanf
 ord University) as part of IPM Geometry and Topology Seminar\n\n\nAbstract
 \nOver the last 20 years\, the Rasmussen invariant of knots in S^3 has had
  a number of interesting applications to questions about surfaces in B^4. 
 In this talk I will survey some recent extensions of the invariant to knot
 s in other three-manifolds: in connected sums of S^1 x S^2 (joint work wit
 h Marengon\, Sarkar\, and Willis)\, in RP^3 (joint work with Willis\, and 
 also separate work of Chen)\, and in a general setting (work by Morrison\,
  Walker and Wedrich\; and independently by Ren-Willis). I will describe ho
 w these invariants give bounds on the genus of smooth surfaces in 4-manifo
 lds\, and can even detect exotic 4-manifolds with boundary.\n\nhttps://www
 .zoom.us/join\nMeeting ID: 935 6306 2335\nPasscode: 304145\n
LOCATION:https://researchseminars.org/talk/GT_IPM/1/
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