p-Signature
Diagonalize a form over the rationals to
where all the entries are Integers and
, 
, ...are Relatively Prime to 
. Then the-signature of the form (for 
) is
where
is the number of Antisquares. For 
, the -signature is Sylvester'sSignature.See also Signature (Quadratic Form)- Apollonius' Theorem
- Apothem
- Apparatus Function
- Appell Hypergeometric Function
- Appell Polynomial
- Appell Transformation
- Apple
- Approximately Equal
- Approximation Theory
- Apéry's Constant
- Arakelov Theory
- Arbelos
- Arborescence
- Arboricity
- Arc
- Arch
- Archimedean Solid
- Archimedean Solid Stellation
- Archimedean Spiral
- Archimedean Spiral Inverse Curve
- Archimedean Valuation
- Archimedes Algorithm
- Archimedes' Axiom
- Archimedes' Cattle Problem
- Archimedes' Circles