Weierstrass P-function
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21: 23 Weierstrass Elliptic and Modular
Functions
Chapter 23 Weierstrass Elliptic and Modular Functions
…22: 19.25 Relations to Other Functions
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βΊ
§19.25(vi) Weierstrass Elliptic Functions
… βΊLet be a lattice for the Weierstrass elliptic function . …The sign on the right-hand side of (19.25.35) will change whenever one crosses a curve on which , for some . … βΊfor some and . … βΊin which and are generators for the lattice , , and (see (23.2.12)). …23: 29.2 Differential Equations
24: 23.22 Methods of Computation
§23.22 Methods of Computation
… βΊ§23.22(ii) Lattice Calculations
… βΊThe corresponding values of , , are calculated from (23.6.2)–(23.6.4), then and are obtained from (23.3.6) and (23.3.7). … βΊSuppose that the invariants , , are given, for example in the differential equation (23.3.10) or via coefficients of an elliptic curve (§23.20(ii)). … βΊAssume and . …25: Peter L. Walker
26: 19.10 Relations to Other Functions
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βΊ
§19.10(i) Theta and Elliptic Functions
βΊFor relations of Legendre’s integrals to theta functions, Jacobian functions, and Weierstrass functions, see §§20.9(i), 22.15(ii), and 23.6(iv), respectively. …27: 25.1 Special Notation
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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
.
28: William P. Reinhardt
29: 20.9 Relations to Other Functions
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βΊ
§20.9(ii) Elliptic Functions and Modular Functions
βΊSee §§22.2 and 23.6(i) for the relations of Jacobian and Weierstrass elliptic functions to theta functions. …30: 14.21 Definitions and Basic Properties
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βΊStandard solutions: the associated Legendre functions
, , , and .
and exist for all values of , , and , except possibly and , which are branch points (or poles) of the functions, in general.
When is complex , , and are defined by (14.3.6)–(14.3.10) with replaced by : the principal branches are obtained by taking the principal values of all the multivalued functions appearing in these representations when , and by continuity elsewhere in the -plane with a cut along the interval ; compare §4.2(i).
The principal branches of and are real when , and .
…
βΊThe generating function expansions (14.7.19) (with replaced by ) and (14.7.22) apply when ; (14.7.21) (with replaced by ) applies when .