operational matrices with respect to hermite polynomials and their applications in solving linear di erential equations with variable coecients

Authors

z kalateh bojdi

department of mathematics, birjand university, birjand, iran; s ahmadi-asl

department of mathematics, birjand university, birjand, iran; a aminataei

faculty of mathematics, k. n. toosi university of technology, p.o. box 16315-1618, tehran, iran.

abstract

in this paper, a new and ecient approach is applied for numerical approximationof the linear di erential equations with variable coecients based on operational matriceswith respect to hermite polynomials. explicit formulae which express the hermite expansioncoecients for the moments of derivatives of any di erentiable function in terms of theoriginal expansion coecients of the function itself are given in the matrix form. the mainimportance of this scheme is that using this approach reduces solving the linear di erentialequations to solve a system of linear algebraic equations, thus greatly simplifying the problem.in addition, two experiments are given to demonstrate the validity and applicability of themethod.

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Journal title:
journal of linear and topological algebra (jlta)

جلد ۲، شماره ۰۲، صفحات ۹۱-۱۰۳

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