Diagrammatic Computations for Quandles and Cocycle Knot Invariants

Details Diagrammatic Computations for Quandles and Cocycle Knot Invariants Diagrammatic Computations for Quandles and Cocycle Knot Invariants

2001-02-12

arxiv.org/abs/math/0102092v1

Mathematics

Geometric Topology

24 Pages; 23 Figures; an applification of recent talks given in San Francisco and Siegen

Scientific paper

The state-sum invariants for knots and knotted surfaces defined from quandle cocycles are described using the Kronecker product between cycles represented by colored knot diagrams and a cocycle of a finite quandle used to color the diagram. Such an interpretation is applied to evaluating the invariants. Algebraic interpretations of quandle cocycles as deformations of extensions are also given. The proofs rely on colored knot diagrams.

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