Genus Theorem
A Diophantine Equation
can be solved for
a Prime Iff 
or 
. The representation is unique except for changes ofsign or rearrangements of 
and 
.See also Composition Theorem, Fermat's Theorem- Laguerre Differential Equation
- Laguerre-Gauss Quadrature
- Laguerre Polynomial
- Laguerre Quadrature
- Laguerre's Method
- Laguerre's Repeated Fraction
- Laisant's Recurrence Formula
- Lakshmi Star
- Lal's Constant
- Laman's Theorem
- Lambda Calculus
- Lambda Function
- Lambda Group
- Lambda Hypergeometric Function
- Lambert Azimuthal Equal-Area Projection
- Lambert Conformal Conic Projection
- Lambert Series
- Lambert's Method
- Lambert's Transcendental Equation
- Lambert's W-Function
- Lamina
- Laminated Lattice
- Lam's Problem
- Lamé Curve
- Lamé Function