Hopf Map
The first example discovered of a Map from a higher-dimensional Sphere to a lower-dimensional Spherewhich is not null-Homotopic. Its discovery was a shock to the mathematical community, since it wasbelieved at the time that all such maps were null-Homotopic, by analogy with HomologyGroups. The Hopf map takes points (
, 
, 
, 
) on a 3-sphere to points on a 2-sphere(
, 
, 
)
Every point on the two Spheres corresponds to a Circle called the Hopf Circle on the 3-Sphere.
- Medial Rhombic Triacontahedron
- Medial Triambic Icosahedron
- Medial Triangle
- Medial Triangle Locus Theorem
- Median Point
- Median (Statistics)
- Mediant
- Median (Triangle)
- Mega
- Megistron
- Mehler-Dirichlet Integral
- Mehler Quadrature
- Mehler's Bessel Function Formula
- Mehler's Hermite Polynomial Formula
- Meijer's G-Function
- Meissel's Formula
- Mellin Transform
- Melnikov-Arnold Integral
- Melodic Series
- MEM
- Memoryless
- Menasco's Theorem
- Menelaus' Theorem
- Menger's n-Arc Theorem
- Menger Sponge