remainder terms
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21—28 of 28 matching pages
21: Bibliography M
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Two-point quasi-fractional approximations to the Airy function
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J. Comput. Phys. 99 (2), pp. 337–340.
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Explicit error terms for asymptotic expansions of Stieltjes transforms.
J. Inst. Math. Appl. 22 (2), pp. 129–145.
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Exact remainders for asymptotic expansions of fractional integrals.
J. Inst. Math. Appl. 24 (2), pp. 139–147.
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Asymptotic expansions of ellipsoidal wave functions in terms of Hermite functions.
Math. Nachr. 32, pp. 49–62.
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22: 8.11 Asymptotic Approximations and Expansions
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►Then as with and fixed
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►If is real and () is positive, then is bounded in absolute value by the first neglected term
and has the same sign provided that .
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►This reference also contains explicit formulas for in terms of Stirling numbers and for the case an asymptotic expansion for as .
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►See Tricomi (1950b) for these approximations, together with higher terms and extensions to complex variables.
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►This reference also contains explicit formulas for the coefficients in terms of Stirling numbers.
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23: 8.27 Approximations
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Luke (1975, p. 106) gives rational and Padé approximations, with remainders, for and for complex with .
24: 3.11 Approximation Techniques
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►where and the double prime means that the first and last terms are to be halved.
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►Here the single prime on the summation symbol means that the first term is to be halved.
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►More precisely, it is known that for the interval , the ratio of the maximum value of the remainder
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►Let be the last term retained in the truncated series.
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►Multivariate functions can also be approximated in terms of multivariate polynomial splines.
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25: 18.28 Askey–Wilson Class
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►In the remainder of this section the Askey–Wilson class OP’s are defined by their -hypergeometric representations, followed by their orthogonal properties.
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►Define dual parameters
in terms of by
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►More generally, if instead of , discrete terms need to be added to the right-hand side of (18.28.8); see Koekoek et al. (2010, Eq. (14.8.3)).
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26: 18.39 Applications in the Physical Sciences
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►However, in the remainder of this section will will assume that the spectrum is discrete, and that the eigenfunctions of form a discrete, normed, and complete basis for a Hilbert space.
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a) Spherical Radial Coulomb Wave Functions Expressed in terms of Laguerre OP’s
… ►The solution, (18.39.29), of the spherical radial equation (18.39.28), now expressed in terms of the Bohr quantum number , is … ►d) Radial Coulomb Wave Functions Expressed in Terms of the Associated Coulomb–Laguerre OP’s
… ►These same solutions are expressed here in terms of Laguerre and Pollaczek OP’s. …27: 1.5 Calculus of Two or More Variables
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1.5.18
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►and the second order term in (1.5.18) is positive definite
(negative definite), that is,
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28: 1.18 Linear Second Order Differential Operators and Eigenfunction Expansions
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►Focus is now placed on second order differential operators as these are the subject of the remainder of §1.18.
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►Ignoring the boundary value terms it follows that
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►This insures the vanishing of the boundary terms in (1.18.26), and also is a choice which indicates that , as and satisfy the same boundary conditions and thus define the same domains.
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►Other choices of boundary conditions, identical for and , and which also lead to the vanishing of the boundary terms in (1.18.26), each lead to a distinct self adjoint extension of .
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►Eigenvalues and eigenfunctions of , self-adjoint extensions of with well defined boundary conditions, and utilization of such eigenfunctions for expansion of wide classes of functions, will be the focus of the remainder of this section.
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