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31—40 of 89 matching pages
31: 14.28 Sums
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►where the branches of the square roots have their principal values when and are continuous when .
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32: 28.29 Definitions and Basic Properties
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is either a continuous and real-valued function for or an analytic function of in a doubly-infinite open strip that contains the real axis.
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►Assume that the second derivative of in (28.29.1) exists and is continuous.
…If has
continuous derivatives, then as
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33: Bibliography
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Continuous Hahn polynomials.
J. Phys. A 18 (16), pp. L1017–L1019.
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Continuous
-Hermite Polynomials when
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In
-series and Partitions (Minneapolis, MN, 1988),
IMA Vol. Math. Appl., Vol. 18, pp. 151–158.
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Singular Continuous Spectrum for a Class of Almost Periodic Jacobi Matrices.
Bulletin of the American Mathematical Society 6 (1), pp. 81–85.
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34: 2.8 Differential Equations with a Parameter
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►in which ranges over a bounded or unbounded interval or domain , and is or analytic on .
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►Again, and is on .
Corresponding to each positive integer there are solutions , , that are on , and as
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►These envelopes are continuous functions of , and as
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►Also, is on , and .
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35: 22.14 Integrals
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►The branches of the inverse trigonometric functions are chosen so that they are continuous.
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►Again, the branches of the inverse trigonometric functions must be continuous.
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36: Bibliography E
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Generating functions of certain continuous orthogonal systems.
Proc. Roy. Soc. Edinburgh. Sect. A. 61, pp. 61–70.
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37: 2.3 Integrals of a Real Variable
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►Since need not be continuous (as long as the integral converges), the case of a finite integration range is included.
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►In addition to (2.3.7) assume that and are piecewise continuous (§1.4(ii)) on , and
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(a)
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►Assume also that and are continuous in and , and for each the minimum value of in is at , at which point vanishes, but both and are nonzero.
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►with the coefficients
continuous at .
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and are continuous in a neighborhood of , save possibly at , and the minimum of in is approached only at .
38: 3.11 Approximation Techniques
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►Let be continuous on a closed interval .
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►Assume that is continuous on and let , , and be the zeros of in arranged so that
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►Furthermore, if , then the convergence of (3.11.11) is usually very rapid; compare (1.8.7) with arbitrary.
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►Let be continuous on a closed interval and be a continuous nonvanishing function on : is called a weight function.
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39: 18.39 Applications in the Physical Sciences
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►The properties of determine whether the spectrum, this being the set of eigenvalues of , is discrete, continuous, or mixed, see §1.18.
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►Such a superposition yields continuous time evolution of the probability density .
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►The spectrum is mixed as in §1.18(viii), with the discrete eigenvalues given by (18.39.18) and the continuous eigenvalues by () with corresponding eigenfunctions expressed in terms of Whittaker functions (13.14.3).
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►For these are the repulsive CP OP’s with corresponding to the continuous spectrum of , , and for we have the attractive CP OP’s, where the spectrum is complemented by the infinite set of bound state eigenvalues for fixed .
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►Given that in both the attractive and repulsive cases, the expression for the absolutely continuous, , part of the function of (18.35.6) may be simplified:
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40: 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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►As the interval is mapped, one-to-one, onto by the above definition of , the integrand being positive, the inverse of this same transformation allows to be calculated from in (1.13.31), and .
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