BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Zhechi Cheng
DTSTART:20260701T073000Z
DTEND:20260701T090000Z
DTSTAMP:20260625T063242Z
UID:Mos-Bei-top-seminar/150
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Mos-Bei-top-
 seminar/150/">On Positive Braid Knot Monodromies</a>\nby Zhechi Cheng as p
 art of Moscow-Beijing topology seminar\n\n\nAbstract\nA fibered knot in th
 e 3-sphere is one whose complement is a surface bundle over the circle. Th
 e topology of such knots is tied to their monodromies. Positive braid knot
 s are fibered by a theorem of Stallings from the 1970s. Using knot Floer h
 omology\, we verify a rank-one condition which\, by a theorem of Ni\, forc
 es the monodromy to be fixed-point-free. Consequently\, every prime positi
 ve braid knot admits a fixed-point-free monodromy. This is joint work with
  Matthew Hedden.\n
LOCATION:https://researchseminars.org/talk/Mos-Bei-top-seminar/150/
END:VEVENT
END:VCALENDAR