English

Algebraic and Geometric intersection numbers for free groups

Geometric Topology 2008-09-19 v1 Group Theory

Abstract

We show that the algebraic intersection number of Scott and Swarup for splittings of free groups coincides with the geometric intersection number for the sphere complex of the connected sum of copies of S2×S1S^2\times S^1.

Cite

@article{arxiv.0809.3109,
  title  = {Algebraic and Geometric intersection numbers for free groups},
  author = {Siddhartha Gadgil and Suhas Pandit},
  journal= {arXiv preprint arXiv:0809.3109},
  year   = {2008}
}

Comments

7 pages

R2 v1 2026-06-21T11:21:31.471Z