The number of primitive Vassiliev invariants up to degree twelve
نویسنده
چکیده
We present algorithms giving upper and lower bounds for the number of independent primitive rational Vassiliev invariants of degree m modulo those of degree m − 1. The values have been calculated for the formerly unknown degrees m = 10, 11, 12. Upper and lower bounds coincide, which reveals that all Vassiliev invariants of degree ≤ 12 are orientation insensitive and are coming from representations of Lie algebras so and gl. Furthermore, a conjecture of Vogel is falsified and it is shown that the Λ-module of connected trivalent diagrams (Chinese characters) is not free.
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تاریخ انتشار 2008