English

Dehn surgery, the fundamental group and SU(2)

Geometric Topology 2007-05-23 v1

Abstract

Let K be a non-trivial knot in the 3-sphere and let Y(r) be the 3-manifold obtained by surgery on K with surgery-coefficient a rational number r. We show that there is a homomorphism from the fundamental group of Y(r) to SU(2) with non-cyclic image if r is less than or equal to 2.

Keywords

Cite

@article{arxiv.math/0312322,
  title  = {Dehn surgery, the fundamental group and SU(2)},
  author = {P. B. Kronheimer and T. S. Mrowka},
  journal= {arXiv preprint arXiv:math/0312322},
  year   = {2007}
}

Comments

15 pages

R2 v1 2026-07-22T17:00:51.199Z