Alexander Ideal
The order Ideal in 
, the Ring of integral Laurent Polynomials,associated with an Alexander Matrix for a Knot 
. Any generator of a principal Alexander ideal is calledan Alexander Polynomial. Because the Alexander Invariant of a Tame Knot in 
has aSquare presentation Matrix, its Alexander ideal is Principaland it has an Alexander Polynomial 
.
References
Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, pp. 206-207, 1976.
- Second Fundamental Tensor
- Sectional Curvature
- Section (Graph)
- Section (Pencil)
- Section (Tangent Bundle)
- Sector
- Sectorial Harmonic
- Secular Equation
- Seed
- Seed of Life
- Seek Time
- Segment
- Segmented Number
- Segner's Recurrence Formula
- Segre's Theorem
- Seiberg-Witten Equations
- Seiberg-Witten Invariants
- Seidel-Entringer-Arnold Triangle
- Seifert Circle
- Seifert Conjecture
- Seifert Form
- Seifert Matrix
- Seifert's Spherical Spiral
- Seifert Surface
- Self-Adjoint Matrix