English

Ample Hierarchy

Logic 2013-08-26 v4

Abstract

The ample hierarchy of geometries of stables theories is strict. We generalise the construction of the free pseudospace to higher dimensions and show that the n-dimensional free pseudospace is \omega-stable n-ample yet not (n+1)-ample. In particular, the free pseudospace is not 3-ample. A thorough study of forking is conducted and an explicit description of canonical bases is exhibited.

Keywords

Cite

@article{arxiv.1210.2552,
  title  = {Ample Hierarchy},
  author = {Andreas Baudisch and Amador Martin-Pizarro and Martin Ziegler},
  journal= {arXiv preprint arXiv:1210.2552},
  year   = {2013}
}

Comments

Section 7 contains more information about ranks

R2 v1 2026-06-21T22:18:36.981Z