Notes for AKT-090917-2/0:00:33

We study the Jones polynomial for a double point and as a result get the Jones skein relation:

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle qJ(\overcrossing)-q^{-1}J(\undercrossing) = (q^{1/2}-q^{-1/2})J(\smoothing)}