English

The classification of quasi-alternating Montesinos links

Geometric Topology 2017-12-18 v2

Abstract

In this note, we complete the classification of quasi-alternating Montesinos links. We show that the quasi-alternating Montesinos links are precisely those identified independently by Qazaqzeh-Chbili-Qublan and Champanerkar-Ording. A consequence of our proof is that a Montesinos link LL is quasi-alternating if and only if its double branched cover is an L-space, and bounds both a positive definite and a negative definite 4-manifold with vanishing first homology.

Keywords

Cite

@article{arxiv.1701.08425,
  title  = {The classification of quasi-alternating Montesinos links},
  author = {Ahmad Issa},
  journal= {arXiv preprint arXiv:1701.08425},
  year   = {2017}
}

Comments

11 pages, 4 figures. Minor changes based on referee's comments; Corollary 2 added. To appear in Proceedings of the AMS