Long Exact Sequence of a Pair Axiom
One of the Eilenberg-Steenrod Axioms. It states that, for every pair 
, there is a natural long exact sequence
 | (1) |
is induced by the Inclusion Map 
and 
is induced by theInclusion Map 
. The Map 
is called the Boundary Map.See also Eilenberg-Steenrod Axioms- Noether's Fundamental Theorem
- Noether's Transformation Theorem
- Noise
- Noise Sphere
- Nolid
- Nome
- n-Omino
- Nomogram
- Nonagon
- Nonagonal Number
- Nonagram
- Nonassociative Algebra
- Nonassociative Product
- Nonaveraging Sequence
- Noncentral Distribution
- Noncommutative Group
- Nonconformal Mapping
- Nonconstructive Proof
- Noncototient
- Noncylindrical Ruled Surface
- Nondecreasing Function
- Nondividing Set
- Nonessential Singularity
- Non-Euclidean Geometry
- Nonillion