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UID:GLW_UNI_MS_WEBEVT_11680@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20260615T140000Z
DTEND:20260615T150000Z
SUMMARY:Geometry and Topology Seminar: Hatcher-Wagoner invariants for half-unknotted barbell diffeomorphisms - Xiayu Tan (Tsinghua University)
DESCRIPTION:Abstract: In this talk\, we briefly recall the general definition of implanted (i\,n-i)-barbell diffeomorphisms and try to detect the non-triviality of a half-unknotted barbell diffeomorphism by associating it with a specific pseudo-isotopy (denoted as standard barbell pseudo-isotopy) and compute its Hatcher-Wagoner invariants explicitly. We give explicit formulae for (2\, n-2)-barbells and...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11680
LOCATION:Maths 110
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
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