Knots and 4-manifolds

Owens, B. (2021) Knots and 4-manifolds. Winter Braids Lecture Notes, 6(2019), 2. (doi: 10.5802/wbln.28)

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These notes are based on the lectures given by the author during Winter Braids IX in Reims in March 2019. We discuss slice knots and why they are interesting, as well as some ways to decide if a given knot is or is not slice. We describe various methods for drawing diagrams of double branched covers of knots in the 3-sphere and surfaces in the 4-ball, and how these can be useful to decide if an alternating knot is slice. We include a description of the computer search for slice alternating knots due to the author and Frank Swenton.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Owens, Dr Brendan
Authors: Owens, B.
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:Winter Braids Lecture Notes
Publisher:Centre Mersenne
ISSN (Online):2426-0312
Copyright Holders:Copyright © 2021 Centre Mersenne
First Published:First published in Winter Braids Lecture Notes 6(2019):2
Publisher Policy:Reproduced with the permission of the publisher

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