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Computation of Lickorish's Three Manifold Invariants using Chern-Simons Theory

P. Ramadevi·Swatee Naik
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Abstract

It is well known that any three-manifold can be obtained by surgery on a framed link in $S^3$. Lickorish gave an elementary proof for the existence of the three-manifold invariants of Witten using a framed link description of the manifold and the formalisation of the bracket polynomial as the Temperley-Lieb Algebra. Kaul determined three-manifold invariants from link polynomials in SU(2) Chern-Simons theory. Lickorish's formula for the invariant involves computation of bracket polynomials of several cables of the link. We describe an easier way of obtaining the bracket polynomial of a cable using representation theory of composite braiding in SU(2) Chern-Simons theory. We prove that the cabling corresponds to taking tensor products of fundamental representations of SU(2). This enables us to verify that the two apparently distinct three-manifold invariants are equivalent for a specific relation of the polynomial variables.

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P. Ramadevi, Swatee Naik. 1999-01-15. Computation of Lickorish's Three Manifold Invariants using Chern-Simons Theory. https://doi.org/10.1007/s002200050014

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