Normalizer
A set of elements 
of a Group such that
is said to be the normalizer
with respect to a subset of group elements 
.See also Centralizer, Tightly Embedded- Poncelet's Theorem
- Poncelet Transform
- Poncelet Transverse
- Pong Hau K'i
- Pons Asinorum
- Pontryagin Class
- Pontryagin Duality
- Pontryagin Maximum Principle
- Pontryagin Number
- Ponzo's Illusion
- Pop
- Population Comparison
- Population Growth
- Porism
- Porter's Constant
- Poset
- Poset Dimension
- Position Four-Vector
- Position Vector
- Positive
- Positive Definite Function
- Positive Definite Matrix
- Positive Definite Quadratic Form
- Positive Definite Tensor
- Positive Integer