Topology Atlas | Conferences

Knots in Washington XX; 60th birthday of Louis H. Kauffman
February 11-13, 2005
George Washington University
Washington, DC, USA

Organizers
Sofia Lambropoulou (NTUA and Univ. de Caen), Jozef H. Przytycki (GWU), Yongwu Rong (GWU)

Conference Homepage


Non-linear Finite Type Invariants
by
D. N. Yetter
Kansas State University

The framed analog of the Kontsevich integral considered by Le and Murakami,

used by Le, Murakami and Ohtsuki to construct finite-type invariants of 3-manifolds,

and subsequently shown by the speaker to arise from the universal extrinsic braided

deformation of the free (symmetric) compact closed category contains more

information than is sampled by any weight system.

We suggest compelling reasons for considering certain non-linear functions in place of weight systems.

Date received: February 4, 2005

Copyright © 2005 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 # capo-15.