Generic stability and stability
Logic
2012-10-23 v1
Abstract
We prove two results about generically stable types in arbitrary theories. The first, on existence of strong germs, generalizes results from D. Haskell, E. Hrushovski and D. Macpherson on stably dominated types. The second is an equivalence of forking and dividing, assuming generic stability of for all . We use the latter result to answer in full generality a question posed by Hasson and Onshuus: If is stable and does not fork over then is stable. (They had solved some special cases.)
Keywords
Cite
@article{arxiv.1210.5957,
title = {Generic stability and stability},
author = {Hans Adler and Enrique Casanovas and Anand Pillay},
journal= {arXiv preprint arXiv:1210.5957},
year = {2012}
}