commuting and non-commuting symbols
- To: mathgroup at smc.vnet.net
- Subject: [mg31361] commuting and non-commuting symbols
- From: Ian Swanson <swanson at theory.caltech.edu>
- Date: Tue, 30 Oct 2001 04:35:46 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hi My research group is trying to use Mathematica to simplify and verify some complicated expressions that combine various parameters living in different spaces. Basically, we need to be able to label certain symbols as commuting and certain others as non-commuting (ie. Grassman numbers). We then need to perform standard matrx multiplication with this mixture of commuting and non-commuting variables -- and have Mathematica simplify the resulting expressions as much as possible. Can anyone help?? Thank you, Ian ______________________________ | Ian J Swanson | | Theoretical Physics | | 253 Lauritsen | | swanson at theory.caltech.edu | | office: 626.395.2615 | | cell: 626.230.1882 | |____________________________|
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- From: Daniel Lichtblau <danl@wolfram.com>
- Re: commuting and non-commuting symbols