Cramér's Theorem
If 
and 
are Independent variates and 
is a Gaussian Distribution,then both and must have Gaussian Distributions. This was proved by Cramér in1936.
- Hypercomplex Number
- Hypercube
- Hyperdeterminant
- Hyperellipse
- Hyperelliptic Function
- Hyperelliptic Integral
- Hyperfactorial
- Hypergeometric Differential Equation
- Hypergeometric Distribution
- Hypergeometric Function
- Hypergeometric Identity
- Hypergeometric Polynomial
- Hypergeometric Series
- Hypergroup
- Hypermatrix
- Hyperparallel
- Hyperperfect Number
- Hyperplane
- Hyperreal Number
- Hyperspace
- Hypersphere
- Hypersphere Packing
- Hypervolume
- Hypocycloid
- Hypocycloid--3-Cusped