Computing Vassiliev's invariants
Autor: | Theodore Stanford |
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Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Topology and its Applications. 77(3):261-276 |
ISSN: | 0166-8641 |
DOI: | 10.1016/s0166-8641(96)00121-6 |
Popis: | We give an explicit algorithm for computing all of Vassiliev's knot invariants of order ⩽ n, which has been implemented on a computer. In giving a justification of the algorithm, we obtain a simple proof of the sufficiency of the topological 1-term and 4-term relations. We use an example of Taniyama to show that two singular knot diagrams with the same configuration cannot always be made isotopic by crossing changes alone. |
Databáze: | OpenAIRE |
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