Topology Atlas | Conferences


Knots in Washington XLVII
January 20-21, 2019
George Washington University
Washington, DC, United States

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

Conference Homepage


Singular Based Matrices for Virtual 2-Strings
by
David Freund
Harvard University

A singular virtual 2-string α is a wedge of two circles on a closed oriented surface. Up to equivalence by virtual homotopy, α can be realized on a canonical surface Σα. We use the homological intersection pairing on Σα to associate an algebraic object to α called a singular based matrix. In this talk, we show that these objects can be used to distinguish virtual homotopy classes of 2-strings and to compute the virtual Andersen-Mattes-Reshetikhin bracket of families of 2-strings.

Date received: January 4, 2019


Copyright © 2019 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 # cbpq-40.