multivalued
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21: Mathematical Introduction
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►These include, for example, multivalued functions of complex variables, for which new definitions of branch points and principal values are supplied (§§1.10(vi), 4.2(i)); the Dirac delta (or delta function), which is introduced in a more readily comprehensible way for mathematicians (§1.17); numerically satisfactory solutions of differential and difference equations (§§2.7(iv), 2.9(i)); and numerical analysis for complex variables (Chapter 3).
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complex plane (excluding infinity). | |
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multivalued functions. More generally, . See §1.10(vi). | |
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22: 7.18 Repeated Integrals of the Complementary Error Function
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►The confluent hypergeometric function on the right-hand side of (7.18.10) is multivalued and in the sectors one has to use the analytic continuation formula (13.2.12).
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23: 19.11 Addition Theorems
24: 10.18 Modulus and Phase Functions
25: 10.68 Modulus and Phase Functions
26: 22.18 Mathematical Applications
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►This circumvents the cumbersome branch structure of the multivalued functions or , and constitutes the process of uniformization; see Siegel (1988, Chapter II).
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27: 22.16 Related Functions
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22.16.1
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28: 12.7 Relations to Other Functions
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►(It should be observed that the functions on the right-hand sides of (12.7.14) are multivalued; hence, for example, cannot be replaced simply by .)
29: 15.2 Definitions and Analytical Properties
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►As a multivalued function of , is analytic everywhere except for possible branch points at , , and .
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30: 16.2 Definition and Analytic Properties
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►Elsewhere the generalized hypergeometric function is a multivalued function that is analytic except for possible branch points at , and .
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