Topology Atlas | Conferences


Knots in Washington XLIII; 60th birthday of J. Scott Carter
December 9-11, 2016
George Washington University
Washington, DC, USA

Organizers
Valentina Harizanov (GWU), Jozef H. Przytycki (GWU), Yongwu Rong (GWU), Radmila Sazdanovic (NCSU), Alexander Shumakovitch (GWU), Hao Wu (GWU)

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Linking Numbers in 3-Manifolds
by
Patricia Cahn
Smith College
Coauthors: Alexandra Kjuchukova

We give an explicit algorithm for computing linking numbers between curves in an irregular dihedral p-fold branched cover of S3. This work extends a combinatorial algorithm by Perko which computes the linking number between the branch curves in the case p=3. Owing to the fact that every closed oriented three-manifold is a dihedral three-fold branched cover of S3, the algorithm given here can be used to compute linking numbers in any three-manifold, provided that the manifold is presented as a dihedral cover of the sphere.

Date received: November 29, 2016


Copyright © 2016 by the author(s). The author(s) of this work and the organizers of the conference have granted their consent to include this abstract in Topology Atlas. Document # cbnq-32.