Re: Dirac Algebra In Mathematica
- To: mathgroup
- Subject: Re: Dirac Algebra In Mathematica
- From: petti at ALLEGHENY.SCRC.Symbolics.COM
- Date: Wed, 5 Apr 89 12:04:41 CDT
>From RDC at vms.cis.pittsburgh.edu Mon Apr 3 15:50:58 1989
>Subject: RE: Dirac Algegra
>To: stevec at ncsa.uiuc.edu
>X-Vms-To: IN%"stevec%ncsa.uiuc.EDU at unix.cis.pittsburgh.edu"
>Dear Steve,
>Earlier this year we discussed the question of Dirac algebra macros for
>Mathematica. I am reaching the point of doing some more calculations
>which will require this sort of thing. Has anything happened on this
>front? I know there are other people who are interested in this, but
>I haven't been following the latest developments. Could you please
>fill me in.
>Thanks,
>Bob Carlitz
I am just finishing a general tensor package to do universal, Clifford,
symplectic, Grassmann, and enveloping Lie algebras in MACSYMA. Dirac is a
special case of Clifford at this level, but this package operates without
choosing a matrix representation. The matrix version is another job.
What do you want in the package? I assume a matrix representation with the basic
operations, such as hermitian conjugation, particle conjugation etc.?
Dick Petti
petti at symbolics.com
petti at scrc-stony-brook.arpa
----- End Included Message -----