L%E2%80%99H%C3%B4pital%20rule%20for%20derivatives
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11: 18.5 Explicit Representations
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βΊ
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βΊ
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18.5.6
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βΊSimilarly in the cases of the ultraspherical polynomials and the Laguerre polynomials we assume that , and , unless
stated otherwise.
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βΊ
12: 23.3 Differential Equations
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βΊ
23.3.1
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βΊGiven and there is a unique lattice such that (23.3.1) and (23.3.2) are satisfied.
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βΊConversely, , , and the set are determined uniquely by the lattice independently of the choice of generators.
However, given any pair of generators , of , and with defined by (23.2.1), we can identify the individually, via
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βΊ
§23.3(ii) Differential Equations and Derivatives
…13: 23.1 Special Notation
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βΊ
βΊ
βΊThe main functions treated in this chapter are the Weierstrass -function ; the Weierstrass zeta function ; the Weierstrass sigma function ; the elliptic modular function ; Klein’s complete invariant ; Dedekind’s eta function .
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lattice in . | |
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primes | derivatives with respect to the variable, except where indicated otherwise. |
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Cartesian product of groups and , that is, the set of all pairs of elements with group operation . |
14: 25.15 Dirichlet -functions
§25.15 Dirichlet -functions
βΊ§25.15(i) Definitions and Basic Properties
βΊThe notation was introduced by Dirichlet (1837) for the meromorphic continuation of the function defined by the series … … βΊ§25.15(ii) Zeros
…15: 18.39 Applications in the Physical Sciences
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βΊwhere is the (squared) angular momentum operator (14.30.12).
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βΊwith an infinite set of orthonormal eigenfunctions
… here being the order of the Laguerre polynomial, of Table 18.8.1, line 11, and the angular momentum quantum number, and where
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βΊThe bound state eigenfunctions of the radial Coulomb Schrödinger operator are discussed in §§18.39(i) and 18.39(ii), and the -function normalized (non-) in Chapter 33, where the solutions appear as Whittaker functions.
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βΊThe fact that non- continuum scattering eigenstates may be expressed in terms or (infinite) sums of functions allows a reformulation of scattering theory in atomic physics wherein no non- functions need appear.
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16: 25.1 Special Notation
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βΊ
βΊ
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βΊThe main related functions are the Hurwitz zeta function , the dilogarithm , the polylogarithm (also known as Jonquière’s function ), Lerch’s transcendent , and the Dirichlet -functions .
nonnegative integers. | |
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primes | on function symbols: derivatives with respect to argument. |
17: 18.14 Inequalities
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βΊ
18.14.8
, .
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18.14.12
, .
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βΊLet the maxima , , of in be arranged so that
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18.14.24
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βΊThe successive maxima of form a decreasing sequence for , and an increasing sequence for .
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18: 18.18 Sums
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βΊ
Expansion of functions
βΊIn all three cases of Jacobi, Laguerre and Hermite, if is on the corresponding interval with respect to the corresponding weight function and if are given by (18.18.1), (18.18.5), (18.18.7), respectively, then the respective series expansions (18.18.2), (18.18.4), (18.18.6) are valid with the sums converging in sense. … βΊ
18.18.12
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βΊ
18.18.37
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βΊ
18.18.40
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19: 18.17 Integrals
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βΊ
18.17.2
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βΊFormulas (18.17.9), (18.17.10) and (18.17.11) are fractional generalizations of -th derivative formulas which are, after substitution of (18.5.7), special cases of (15.5.4), (15.5.5) and (15.5.3), respectively.
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18.17.15
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βΊFormulas (18.17.14) and (18.17.15) are fractional generalizations of -th derivative formulas which are, after substitution of (13.6.19), special cases of (13.3.18) and (13.3.20), respectively.
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18.17.47
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20: 23.6 Relations to Other Functions
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βΊIn this subsection , are any pair of generators of the lattice , and the lattice roots , , are given by (23.3.9).
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βΊ
23.6.13
βΊ
23.6.14
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βΊAgain, in Equations (23.6.16)–(23.6.26), are any pair of generators of the lattice and are given by (23.3.9).
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βΊAlso, , , are the lattices with generators , , , respectively.
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