Perturbations for linear difference equations |
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Authors: | Tewfik Sari Tahia Zerizer |
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Affiliation: | Laboratoire de Mathématiques, Université de Haute Alsace, 4, rue des Frères Lumière, 68093, Mulhouse, France |
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Abstract: | In this paper we study boundary value problems for perturbed second-order linear difference equations with a small parameter. The reduced problem obtained when the parameter is equal to zero is a first-order linear difference equation. The solution is represented as a convergent series in the small parameter, whose coefficients are given by means of solutions of the reduced problem. |
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Keywords: | Difference equation Perturbations |
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