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arxiv: 0910.3002 · v2 · submitted 2009-10-15 · 🧮 math.GT · math.QA

Rack shadows and their invariants

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keywords rackinvariantscountingenhancedshadowactionanalogousclassical
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A rack shadow is a set X with a rack action by a rack R, analogous to a vector space over a field. We use shadow colorings of classical link diagrams to define enhanced rack counting invariants and show that the enhanced invariants are stronger than unenhanced counting invariants.

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