Non-commutative geometry

["Tuan A. Tran" <tuan@feynman.physics.tamu.edu>]

  To Ho Hai va Ai Viet,

 Recently, two American physicists Edward Witten va` Nathan Seiberg
wrote a paper with 100 pages (they did appologize for not writting
their paper shorter). Honestly, I have not had time to look at their
paper. However, I was told as follows: 

Seiberg and Witten showed that it is possible to map non-commutative
Yang-Mills fields to ordinary ones by a transformation that maps one kind
of gauge invariance to the other and adds higher dimension terms to the
equations of motion.

So once you have a map, you don't need to study non-commutative geometry.

 Cheers,
 Tuan Aggies