Heegaard genus, cut number, weak p-congruence, and quantum invariants.

link: http://arxiv.org/abs/0810.4320
Abstract

We use quantum invariants to define a 3-manifold invariant j_p which lies in
the non-negative integers. We relate j_p to the Heegard genus, and the cut
number. We show that $j_p$ is an invariant of weak p-congruence.