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Resolving sequences of operators for linear ordinary differential and difference systems of arbitrary order


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Abstract

We introduce the notion of a resolving sequence of (scalar) operators for a given differential or difference system with coefficients in some differential or difference field K. We propose an algorithm to construct, such a sequence, and give some examples of the use of this sequence as a suitable auxiliary tool for finding certain kinds of solutions of differential and difference systems of arbitrary order. Some experiments with our implementation of the algorithm are reported.

About the authors

M. Petkovšek

University of Ljubljana

Author for correspondence.
Email: Marko.Petkovsek@fmf.uni-lj.si
Slovenia, Jadranska 19, Ljubljana, SI-1000

A. A. Ryabenko

Federal Research Center “Computer Science and Control”

Author for correspondence.
Email: anna.ryabenko@gmail.com
Russian Federation, ul. Vavilova 40, Moscow, 119333

S. A. Abramov

Federal Research Center “Computer Science and Control”

Author for correspondence.
Email: sergeyabramov@mail.ru
Russian Federation, ul. Vavilova 40, Moscow, 119333

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