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)

Conference Homepage


Heegaard Floer invariants of knots in the 4-sphere
by
Daniel Ruberman
Brandeis University
Coauthors: Adam Levine

We use a partially twisted version of Heegaard Floer homology to define invariants of 3-manifolds, generalizing the d-invariant of a rational homology sphere. A Seifert surface for an oriented knot in the 4-sphere has a canonical twisting, and its d-invariant turns out to depend only on the original knot.

Date received: September 17, 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-09.