Shifted Chebyshev direct method for solving variational problems. (English) Zbl 0568.49019

Ingrong, Horng; Jyhhorng, Chou

Int. J. Syst. Sci. 16, 855-861 (1985).

Shifted Chebyshev polynomials for solving variational problems are given in this study. This technique reduces a variational problem to the solution of algebraic equations, and the computation is straightforward on a digital computer. Two illustrative examples are given. Only a small number of the shifted Chebyshev polynomials are needed to calculate the Chebyshev coefficients, and the result produced is very attractive and accurate.

MSC:

49M05	Numerical methods based on necessary conditions
33C45	Orthogonal polynomials and functions of hypergeometric type (Jacobi, Laguerre, Hermite, Askey scheme, etc.)
49K15	Optimality conditions for problems involving ordinary differential equations
42C10	Fourier series in special orthogonal functions (Legendre polynomials, Walsh functions, etc.)
65K10	Numerical optimization and variational techniques

Keywords:

Shifted Chebyshev polynomials; variational problems

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