English

Origamis associated to minimally intersecting filling pairs

Geometric Topology 2022-06-22 v2

Abstract

Let SgS_{g} denote the closed orientable surface of genus gg. In joint work with Huang, the first author constructed exponentially-many (in gg) mapping class group orbits of pairs of simple closed curves whose complement is a single topological disk. Using different techniques, we improve on this result by constructing factorially-many (again in gg) such orbits. These new orbits are chosen so that the absolute value of the algebraic intersection number is equal to the geometric intersection number, implying that each pair naturally gives rise to an origami. We collect some rudimentary experimental data on the corresponding SL(2,Z)SL(2, \mathbb{Z})-orbits and suggest further study and conjectures.

Keywords

Cite

@article{arxiv.2108.10268,
  title  = {Origamis associated to minimally intersecting filling pairs},
  author = {Tarik Aougab and William Menasco and Mark Nieland},
  journal= {arXiv preprint arXiv:2108.10268},
  year   = {2022}
}

Comments

3 figures; Version 2, revised to address a minor error in the even genus construction