Affine Scheme
A technical mathematical object defined as the Spectrum 
of a set of Prime Ideals of a commutative Ring 
regarded as a local ringed space with a structure sheaf.
References
Iyanaga, S. and Kawada, Y. (Eds.). ``Schemes.'' §18E in Encyclopedic Dictionary of Mathematics. Cambridge, MA: MIT Press, p. 69, 1980.
- Mensuration Formula
- Mercator Projection
- Mercator Series
- Mercer's Theorem
- Mergelyan-Wesler Theorem
- Meridian
- Meromorphic
- Mersenne Number
- Mersenne Prime
- Mertens Conjecture
- Mertens Constant
- Mertens Function
- Mertens Theorem
- Mertz Apodization Function
- Mesh Size
- Mesokurtic
- M-Estimate
- Metabiaugmented Dodecahedron
- Metabiaugmented Hexagonal Prism
- Metabiaugmented Truncated Dodecahedron
- Metabidiminished Icosahedron
- Metabidiminished Rhombicosidodecahedron
- Metabigyrate Rhombicosidodecahedron
- Metadrome
- Metagyrate Diminished Rhombicosidodecahedron