Schaar's Identity
A generalization of the Gaussian Sum. For 
and 
of opposite Parity (i.e., one is Even and the other isOdd), Schaar's identity states
See also Gaussian Sum
References
Evans, R. and Berndt, B. ``The Determination of Gauss Sums.'' Bull. Amer. Math. Soc. 5, 107-129, 1981.
- Möbius Inversion Formula
- Möbius Periodic Function
- Möbius Problem
- Möbius Shorts
- Möbius Strip
- Möbius Transformation
- Möbius Triangles
- Müller-Lyer Illusion
- Müntz Space
- Müntz's Theorem
- N
- Nabla
- Nagel Point
- Naive Set Theory
- Napierian Logarithm
- Napier's Analogies
- Napier's Bones
- Napier's Constant
- Napier's Inequality
- Napkin Ring
- Napoleon Points
- Napoleon's Problem
- Napoleon's Theorem
- Napoleon Triangles
- Nappe