OreSys
Short Description
OreSys is a Mathematica package for uncoupling systems of linear
Ore operator equations. It offers four algorithms for reducing systems
of differential or (
q-) difference equations to higher order equations
in a single unknown variable. The package has been developed by
Stefan Gerhold,
a Ph.D. student of the
RISC Combinatorics group.
Registration and Legal Notices
The source code for this package is password protected. To get the password
send an email to
Peter Paule.
It will be given for free to all researchers and non-commercial users.
Copyright © 1999–2012 The RISC Combinatorics Group, Austria — all rights reserved.
Commercial use of the software is prohibited without prior written permission.
A Note on Encoded Files
This package contains one or more Mathematica input files which are encoded. Those files
cannot be read or modified directly as plain text, but can be loaded into
Mathematica just like any normal input file (i.e., with
<<"file" or
Get["file"]).
There is no need (and also no way) to decode them by using additional software
or a special key.
If loading an encoded file causes a syntax error, open it with a
text editor and remove any blank lines at the beginning (for some
reason your Mac could have inserted them silently...).
The Package
The package
OreSys consists of the Mathematica input file
and the documentation notebook
Literature
The implemented uncoupling algorithms and the underlying theory are described in
S. Gerhold,
Uncoupling Systems of Linear Ore Operator Equations, Diploma Thesis, RISC,
J. Kepler University, Linz, February 2002.
[ps]
Versions and Bugs
Right now you are using version 1.2 of the package last updated on December 21, 2006.
Please report any bugs and comments to
Ralf Hemmecke.