The properties of sine, spherical Bessel and reduced Bessel function for improving convergence of semi-infinite very oscillatory integrals: The evaluation of three-centre nuclear attraction integrals over \(B\) functions (Q2716579)

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scientific article; zbMATH DE number 1599183
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The properties of sine, spherical Bessel and reduced Bessel function for improving convergence of semi-infinite very oscillatory integrals: The evaluation of three-centre nuclear attraction integrals over \(B\) functions
scientific article; zbMATH DE number 1599183

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    2001
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    oscillatory integrals
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    nuclear attraction integrals
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    spherical Bessel functions
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    The properties of sine, spherical Bessel and reduced Bessel function for improving convergence of semi-infinite very oscillatory integrals: The evaluation of three-centre nuclear attraction integrals over \(B\) functions (English)
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    The paper deals with useful properties of sine, spherical Bessel and reduced Bessel functions to simplify the application of nonlinear \(D\)- and \(\widetilde D\)-transformations for accelerating the convergence of semi-infinite very oscillatory integrals and to reduce the calculation times keeping a higher predetermined accuracy. Numerical results show the efficiency of the new method compared with other alternatives.
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