Topology Atlas | Conferences

Knots in Washington XXIII; Quandles, their homology and ramifications
November 17-19, 2006
George Washington University
Washington, DC, USA

Organizers
Jozef H. Przytycki (GWU), przytyck@gwu.edu, Yongwu Rong (GWU), rong@gwu.edu, Alexander Shumakovitch (GWU), shurik@gwu.edu

Conference Homepage


Virtual automorphisms as mapping classes
by
Dragomir Saric
Queens College CUNY
Coauthors: Sylvain Bonnot and Robert Penner

We consider the group Vaut(π1 (S)) of virtual automorphisms of a punctured surface group π1(S). By a result of C. Odden, this group is the mapping class group of a solenoid. We use Whitehead moves and an appropriate combinatorial object (the triangulation complex) to give generators and a presentation of Vaut(π1 (S)). The talk will be elementary with some background on the mapping class group of a surface.

Date received: November 10, 2006

Copyright © 2006 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 # catp-08.