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An accurate eighth order exponentially-fitted method for the efficient solution of the Schrödinger equation. (English) Zbl 0976.65060

This paper constructs an eighth-order exponentially fitted method for solving differential equations arising from the Schrödinger equation. A comprehensive order and truncation error analysis is given using MAPLE. A variable stepsize implementation is introduced and compared with existant methods on some simple problems.

MSC:

65L05 Numerical methods for initial value problems involving ordinary differential equations
65L50 Mesh generation, refinement, and adaptive methods for ordinary differential equations
65L70 Error bounds for numerical methods for ordinary differential equations
34L40 Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.)

Software:

Maple
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