elliptic function
Let be a lattice in the sense of number
theory, i.e. a 2-dimensional free group
over which
generates over .
An elliptic function , with respect to the lattice
, is a meromorphic
funtion which is -periodic
:
Remark: An elliptic function which is holomorphic is
constant. Indeed such a function would induce a holomorphic
function on , which is compact (and it is a
standard result from Complex Analysis that any holomorphic
function with compact domain is constant, this follows from
Liouville’s Theorem).
Example: The Weierstrass -function (see elliptic curve)
is an elliptic function, probably the most important. In fact:
Theorem 1.
The field of elliptic functions with respect to a lattice is generated by and (the derivative of ).
Proof.
See [2], chapter 1, theorem 4. ∎
References
-
1
James Milne, Modular Functions
and Modular Forms
, online course notes. http://www.jmilne.org/math/CourseNotes/math678.htmlhttp://www.jmilne.org/math/CourseNotes/math678.html
- 2 Serge Lang, Elliptic Functions. Springer-Verlag, New York.
- 3 Joseph H. Silverman, The Arithmetic of Elliptic Curves. Springer-Verlag, New York, 1986.
Title | elliptic function |
Canonical name | EllipticFunction |
Date of creation | 2013-03-22 13:47:03 |
Last modified on | 2013-03-22 13:47:03 |
Owner | alozano (2414) |
Last modified by | alozano (2414) |
Numerical id | 7 |
Author | alozano (2414) |
Entry type | Definition |
Classification | msc 33E05 |
Related topic | ExamplesOfEllipticFunctions |
Related topic | WeierstrassSigmaFunction |
Related topic | ModularDiscriminant |
Related topic | WeierstrassWpFunction |
Related topic | TableOfMittagLefflerPartialFractionExpansions |
Related topic | PeriodicFunctions |