Topology Atlas | Conferences


Knots in Washington XXXV
December 7-9, 2012
George Washington University
Washington, DC, USA

Organizers
Mieczyslaw K. Dabkowski (UT Dallas), Valentina Harizanov (GWU), Jozef H. Przytycki (GWU), Yongwu Rong (GWU), Radmila Sazdanovic (U.Penn), Alexander Shumakovitch (GWU), Hao Wu (GWU)

Conference Homepage


Exact volume of hyperbolic 2-bridge links
by
Anastasiia Tsvietkova
Louisiana State University

We will discuss the question of relating a diagram of a link to the geometry of its complement, and, in particular, to its exact hyperbolic volume. W. Thurston suggested a method for computing volume of hyperbolic 3-manifolds, based on a triangulation of the manifold. It was implemented by J. Weeks in the program SnapPea, which produces a decimal approximation as a result. For hyperbolic 2-bridge links, we give formulae that allow one to find the exact volume, i.e. to construct a polynomial and to find volume as an analytic function of one of its roots. The computation is performed directly from a reduced, alternating link diagram.

Date received: November 28, 2012


Copyright © 2012 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 # cbfw-41.