## Laguerre polynomial approach for solving linear delay difference equations.(English)Zbl 1211.65166

Summary: We present a numerical method for the approximate solution of $$m$$th-order linear delay difference equations with variable coefficients under the mixed conditions in terms of Laguerre polynomials. The aim of this article is to present an efficient numerical procedure for solving $$m$$th-order linear delay difference equations with variable coefficients. Our method depends mainly on a Laguerre series expansion approach. This method transforms linear delay difference equations and the given conditions into matrix equation which corresponds to a system of linear algebraic equation. The reliability and efficiency of the proposed scheme are demonstrated by some numerical experiments and performed on the computer algebraic system Maple.

### MSC:

 65Q10 Numerical methods for difference equations 39A12 Discrete version of topics in analysis

Maple
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### References:

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