**OreSys**: A Mathematica implementation of several algorithms for uncoupling systems of linear Ore operator equations
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This package is part of the |PACKAGE_NAME| bundle. See :ref:`Download`.

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 former member
of the `RISC Combinatorics group`_.

Author
------

  * Stefan Gerhold

Accompanying Files
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  * `OreSys_examples.nb <OreSys/OreSys_examples.nb>`_

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] <http://www.risc.jku.at/publications/download/risc_420/dipl.ps.gz>`_

.. _RISC Combinatorics group: http://www.risc.jku.at/research/combinat
.. _Stefan Gerhold: http://www.risc.jku.at/home/sgerhold