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 called an Alexander Polynomial. Because the Alexander Invariant of a Tame Knot in has a Square presentation Matrix, its Alexander ideal is Principal and it has an Alexander Polynomial .

**References**

Rolfsen, D. *Knots and Links.* Wilmington, DE: Publish or Perish Press, pp. 206-207, 1976.

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1999-05-25