English

The FKB invariant is the 3d index

Geometric Topology 2020-03-03 v1 High Energy Physics - Theory

Abstract

We identify the q-series associated to an 1-efficient ideal triangulation of a cusped hyperbolic 3-manifold by Frohman and Kania-Bartoszynska with the 3D-index of Dimofte-Gaiotto-Gukov. This implies the topological invariance of the qq-series of Frohman and Kania-Bartoszynska for cusped hyperbolic 3-manifolds. Conversely, we identify the tetrahedron index of Dimofte-Gaiotto-Gukov as a limit of quantum 6j-symbols.

Keywords

Cite

@article{arxiv.2003.00283,
  title  = {The FKB invariant is the 3d index},
  author = {Stavros Garoufalidis and Roland van der Veen},
  journal= {arXiv preprint arXiv:2003.00283},
  year   = {2020}
}

Comments

11 pages, 6 figures

R2 v1 2026-06-23T13:58:48.268Z