Dror Bar-Natan:
Classes:
2001-02:
Knots and Feynman Diagrams:
Some Non Obvious Examples
Are these pairs the same?
The Millett Example:
(rendered using Rob Scharein's KnotPlot)
The Perko Pair (1):
(taken from http://www.math.cuhk.edu.hk/publect/lecture4/perko.html)
The Perko Pair (2):
(taken from http://www.math.uiuc.edu/~jms/Videos/ke/images.html)