singular continuous spectra
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11: 31.1 Special Notation
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►Sometimes the parameters are suppressed.
12: Bibliography W
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Group Theory and its Application to the Quantum Mechanics of Atomic Spectra.
Pure and Applied Physics. Vol. 5, Academic Press, New York.
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Asymptotic expansions of Fourier transforms of functions with logarithmic singularities.
J. Math. Anal. Appl. 64 (1), pp. 173–180.
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Asymptotic expansions of Hankel transforms of functions with logarithmic singularities.
Comput. Math. Appl. 3 (4), pp. 271–286.
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13: Bibliography F
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Multivariate Calculation. Use of the Continuous Groups.
Springer Series in Statistics, Springer-Verlag, New York.
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Numerical calculation of singular integrals related to Hankel transform.
Comput. Math. Appl. 21 (2-3), pp. 87–94.
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Singularity analysis of generating functions.
SIAM J. Discrete Math. 3 (2), pp. 216–240.
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From continuous to discrete Painlevé equations.
J. Math. Anal. Appl. 180 (2), pp. 342–360.
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Continuous and Discrete Painlevé Equations.
In Painlevé Transcendents: Their Asymptotics and Physical Applications, D. Levi and P. Winternitz (Eds.),
NATO Adv. Sci. Inst. Ser. B Phys., Vol. 278, pp. 33–47.
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14: 1.8 Fourier Series
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►If is of period , and is piecewise continuous, then
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►If and are continuous, have the same period and same Fourier coefficients, then for all .
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►For piecewise continuous on and real ,
…(1.8.10) continues to apply if either or or both are infinite and/or has finitely many singularities in , provided that the integral converges uniformly (§1.5(iv)) at , and the singularities for all sufficiently large .
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►Let be an absolutely integrable function of period , and continuous except at a finite number of points in any bounded interval.
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15: 2.10 Sums and Sequences
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►For extensions of the Euler–Maclaurin formula to functions with singularities at or (or both) see Sidi (2004, 2012b, 2012a).
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►However, if is finite and has algebraic or logarithmic singularities on , then Darboux’s method is usually easier to apply.
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►in the neighborhood of each singularity
, again with .
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►The singularities of on the unit circle are branch points at .
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►For uniform expansions when two singularities coalesce on the circle of convergence see Wong and Zhao (2005).
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16: 16.21 Differential Equation
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►With the classification of §16.8(i), when the only singularities of (16.21.1) are a regular singularity at and an irregular singularity at .
When the only singularities of (16.21.1) are regular singularities at , , and .
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17: 3.7 Ordinary Differential Equations
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►For classification of singularities of (3.7.1) and expansions of solutions in the neighborhoods of singularities, see §2.7.
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►Let be a finite or infinite interval and be a real-valued continuous (or piecewise continuous) function on the closure of .
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►If is on the closure of , then the discretized form (3.7.13) of the differential equation can be used.
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►The order estimate holds if the solution has five continuous derivatives.
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►The order estimates hold if the solution has five continuous derivatives.
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18: 33.2 Definitions and Basic Properties
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§33.2(i) Coulomb Wave Equation
… ►This differential equation has a regular singularity at with indices and , and an irregular singularity of rank 1 at (§§2.7(i), 2.7(ii)). … ►the branch of the phase in (33.2.10) being zero when and continuous elsewhere. …19: 31.5 Solutions Analytic at Three Singularities: Heun Polynomials
§31.5 Solutions Analytic at Three Singularities: Heun Polynomials
… ►is a polynomial of degree , and hence a solution of (31.2.1) that is analytic at all three finite singularities . …20: 1.13 Differential Equations
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and belong to domains and respectively, the coefficients and are continuous functions of both variables, and for each fixed (fixed ) the two functions are analytic in (in ).
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