The lines of the Kontsevich integral and Rozansky's rationality conjecture

Details The lines of the Kontsevich integral and Rozansky's rationality conjecture The lines of the Kontsevich integral and Rozansky's rationality conjecture

2000-05-31

arxiv.org/abs/math/0005284v1

Mathematics

Geometric Topology

40 pages, many figures

Scientific paper

This work develops some technology for accessing the loop expansion of the Kontsevich integral of a knot. The setting is an application of the LMO invariant to certain surgery presentations of knots by framed links in the solid torus. A consequence of this technology is a certain recent conjecture of Rozansky's. Rozansky conjectured that the Kontsevich integral could be organised into a series of ``lines'' which could be represented by finite $\Qset$-linear combinations of diagrams whose edges were labelled, in an appropriate sense, with rational functions. Furthermore, the conjecture requires that the denominator of the rational functions be at most the Alexander polynomial of the knot. This conjecture is obtained from an Aarhus-style surgery formula for this setting which we expect will have other applications.

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