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21—30 of 69 matching pages
21: 5.14 Multidimensional Integrals
22: 12.1 Special Notation
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►The main functions treated in this chapter are the parabolic cylinder functions (PCFs), also known as Weber parabolic cylinder functions: , , , and .
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23: 18.7 Interrelations and Limit Relations
24: 1.18 Linear Second Order Differential Operators and Eigenfunction Expansions
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becomes a normed linear vector space.
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►An inner product space is called a Hilbert space if every Cauchy sequence in (i.
…where and
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►A Hilbert space is separable if there is an (at most countably infinite) orthonormal set in such that for every
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►A linear operator
on a (complex) linear vector space is a map such that
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25: 22.19 Physical Applications
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►where is the potential energy, and is the coordinate as a function of time .
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22.19.5
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Case I:
… ►Case II:
… ►Case III:
…26: 7.25 Software
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§7.25(vi) , , , ,
…27: 13.1 Special Notation
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►Other notations are: (§16.2(i)) and (Humbert (1920)) for ; (Erdélyi et al. (1953a, §6.5)) for ; (Olver (1997b, p. 256)) for ; (Buchholz (1969, p. 12)) for .
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28: 10.73 Physical Applications
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►Bessel functions of the first kind, , arise naturally in applications having cylindrical symmetry in which the physics is described either by Laplace’s equation , or by the Helmholtz equation .
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10.73.1
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29: 18.6 Symmetry, Special Values, and Limits to Monomials
30: 31.15 Stieltjes Polynomials
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►There exist at most polynomials of degree not exceeding such that for , (31.15.1) has a polynomial solution of degree .
The are called Van Vleck polynomials and the corresponding
Stieltjes polynomials.
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►If is a zero of the Van Vleck polynomial , corresponding to an th degree Stieltjes polynomial , and are the zeros of (the derivative of ), then is either a zero of or a solution of the equation
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31.15.3
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