= Alexander matrix
{wiki=Alexander_matrix}
The Alexander matrix, often used in the study of knot theory, is a specific type of matrix associated with a knot or link. It plays a crucial role in analyzing the topology of knots and can be used to derive the Alexander polynomial, an important invariant of knots. The Alexander matrix is constructed from the following steps: 1. **Representation**: Start with a knot or link diagram. From this diagram, choose a triangular decomposition of the knot/link complement.
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