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Speaker:
Alex Zupan
Affiliation:
University of Nebraska-Lincoln/MPIM
Date:
Mon, 07/10/2019 - 15:00 - 16:00
Location:
MPIM Lecture Hall
Parent event:
MPIM Topology Seminar In 2015, Jeff Meier and I introduced bridge trisections of knotted surfaces in the 4-sphere, a natural adaptation of Gay-Kirby trisections. Bridge trisections also give rise to tri-plane diagrams, a new way of doing knotted surface theory that reflects classical knot theory. In later work, we extended the definition of bridge trisections to surfaces in arbitrary 4-manifolds. We will survey some examples, current results, and open questions.
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