Abstract
Algorithms for solving linear PDEs implemented in modern computer algebra systems are usually limited to equations with two independent variables. In this paper, we propose a generalization of the theory of Laplace transformations to second-order partial differential operators in ℝ3 (and, generally, ℝn) with a principal symbol decomposable into the product of two linear (with respect to derivatives) factors. We consider two algorithms of generalized Laplace transformations and describe classes of operators in ℝ3 to which these algorithms are applicable. We correct a mistake in [8] and show that Dini-type transformations are in fact generalized Laplace transformations for operators with coefficients in a skew (noncommutative) Ore field. Keywords: computer algebra, partial differential equations, algorithms for solution.
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Original Russian Text © E.I. Ganzha, 2012, published in Programmirovanie, 2012, Vol. 38, No. 3.
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Ganzha, E.I. On laplace and Dini transformations for multidimensional equations with a decomposable principal symbol. Program Comput Soft 38, 150–155 (2012). https://doi.org/10.1134/S0361768812030012
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DOI: https://doi.org/10.1134/S0361768812030012