Dirac delta function
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11—19 of 19 matching pages
11: 9.11 Products
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►For an integral representation of the Dirac delta involving a product of two
functions see §1.17(ii).
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12: 18.36 Miscellaneous Polynomials
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►These are OP’s on the interval with respect to an orthogonality measure obtained by adding constant multiples of “Dirac delta weights” at and to the weight function for the Jacobi polynomials.
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13: 10.22 Integrals
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►See also §1.17(ii) for an integral representation of the Dirac delta in terms of a product of Bessel functions.
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14: 14.18 Sums
§14.18 Sums
… ► ►§14.18(ii) Addition Theorems
… ►For a series representation of the Dirac delta in terms of products of Legendre polynomials see (1.17.22). … ►15: 20.13 Physical Applications
§20.13 Physical Applications
… ►with . … ►is also a solution of (20.13.2), and it approaches a Dirac delta (§1.17) at . …Thus the classical theta functions are “periodized”, or “anti-periodized”, Gaussians; see Bellman (1961, pp. 18, 19). … ►This allows analytic time propagation of quantum wave-packets in a box, or on a ring, as closed-form solutions of the time-dependent Schrödinger equation.16: 18.1 Notation
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►In Koekoek et al. (2010)
denotes the operator .
§18.1(ii) Main Functions
… ►Racah: .
Dual Hahn: .
-Racah: .
17: 14.30 Spherical and Spheroidal Harmonics
§14.30 Spherical and Spheroidal Harmonics
… ►Herglotz generating function
►The following is the Herglotz generating function … ►For a series representation of the product of two Dirac deltas in terms of products of spherical harmonics see §1.17(iii). … ►18: Bibliography C
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The hypergeometric function and the -function near their branch points.
Rend. Sem. Mat. Univ. Politec. Torino (Special Issue), pp. 63–89.
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Table of integrals of squared Jacobian elliptic functions and reductions of related hypergeometric -functions.
Math. Comp. 75 (255), pp. 1309–1318.
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A compact mathematical function package.
Australian Computer Journal 16 (3), pp. 107–114.
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Über die Fälle, wenn die Reihe von der Form etc. ein Quadrat von der Form etc. hat.
J. Reine Angew. Math. 3, pp. 89–91.
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Numerical evaluation of the Fermi-Dirac integrals.
The Astrophysical Journal Supplement Series 71, pp. 677–699.
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19: 18.39 Applications in the Physical Sciences
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►These eigenfunctions are quantum wave-functions whose absolute values squared give the probability density of finding the single particle at hand at position in the th eigenstate, namely that probability is = , being a localized interval on the -axis.
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