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Noncommutative Algebra Package and Systems
Authors

J. William Helton
Organization: University of California, San Diego
Department: Department of Mathematics
URL: http://math.ucsd.edu/~helton/
Robert L. Miller
Organization: Gener Atomic Corp.
Mark Stankus
Organization: Cal. Poly. San Luis Obispo
Old MathSource #

0208-998
Revision date

2001-11-01
Description

Although processing of commutative expressions is built into Mathematica, relatively no support is given to noncommutative expression manipulation. These packages have been developed to fill this void. Commands for noncommuting algebra that are analogous to Mathematica commands are implemented, as well as others. The development of these packages has been directed by needs that arose from research in Control Theory, Systems Theory, and in Operator Theory. Also attached to the NCAlgebra package are files SYS* for doing calculations with engineering systems that are common in Hinfinity control and in differential games. See the NCAlgebra homepage for more information and heavier software.
Subject

*Mathematics > Algebra
Keywords

noncommuting, noncommutative
Related items

*Singularly perturbed control systems using non-commutative computer algebra   [in Articles]
Downloads

Download
Linux.tgz (8.7 MB) - NCAlgebra/NCGB 3.5 for Linux Mandrake
Download
Linux.zip (9.1 MB) - NCAlgebra/NCGB 3.5 for Linux Mandrake
Download
NCAlg.tgz (3.3 MB) - NCAlgebra 3.5
Download
NCAlg.zip (3.4 MB) - NCAlgebra 3.5
Download
Sun.tgz (11 MB) - NCAlgebra/NCGB 3.5 for Solaris
Download
Sun.zip (11.4 MB) - NCAlgebra/NCGB 3.5 for Solaris
Download
W95.tgz (8.3 MB) - NCAlgebra/NCGB 3.5 for Windows
Download
W95.zip (9 MB) - NCAlgebra/NCGB 3.5 for Windows

Files specific to Mathematica 2.2 version:
Download
NCAlgebra.sea.hqx (2.4 MB) - Macintosh archive
Download
NCAlgebra.tar.Z (2.2 MB) - UNIX compressed file
Download
NCAlgebra.zip (1.7 MB) - ZIP archive