phase shift (or phase)
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21—30 of 42 matching pages
21: 7.12 Asymptotic Expansions
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►When the remainder terms are bounded in magnitude by the first neglected terms, and have the same sign as these terms when .
When the remainder terms are bounded in magnitude by times the first neglected terms.
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►When , and are bounded in magnitude by the first neglected terms in (7.12.2) and (7.12.3), respectively, and have the same signs as these terms when .
They are bounded by times the first neglected terms when .
►For other phase ranges use (7.4.7) and (7.4.8).
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22: 13.8 Asymptotic Approximations for Large Parameters
23: 15.12 Asymptotic Approximations
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(c)
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►If , then (15.12.3) applies when .
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►If , then as with ,
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►If , then as with ,
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►If , then as with ,
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and .
24: 15.2 Definitions and Analytical Properties
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15.2.1
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►The branch obtained by introducing a cut from to on the real -axis, that is, the branch in the sector , is the principal
branch (or principal value) of .
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15.2.2
,
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15.2.3_5
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15.2.4
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25: 13.31 Approximations
26: 8.11 Asymptotic Approximations and Expansions
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8.11.1
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8.11.3
,
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►This expansion is absolutely convergent for all finite , and it can also be regarded as a generalized asymptotic expansion (§2.1(v)) of as in .
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8.11.5
, .
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8.11.12
.
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27: 16.11 Asymptotic Expansions
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►As in ,
…Here the upper or lower signs are chosen according as lies in the upper or lower half-plane; in consequence, in the fractional powers (§4.2(iv)) of its phases are , respectively.
(Either sign may be used when since the first term on the right-hand side becomes exponentially small compared with the second term.)
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►with the same conventions on the phases of .
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►with the same conventions on the phases of .
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28: 13.2 Definitions and Basic Properties
29: 25.11 Hurwitz Zeta Function
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25.11.10
, .
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25.11.37
, .
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►As in the sector , with and fixed, we have the asymptotic expansion
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25.11.43
►Similarly, as in the sector ,
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