Superatomic Boolean Algebras: maximal rigidity
Logic
2007-05-23 v1
Abstract
We prove that for any superatomic Boolean Algebra of cardinality >beth_omega there is an automorphism moving uncountably many atoms. Similarly for larger cardinals. Any of those results are essentially best possible.
Cite
@article{arxiv.math/0009075,
title = {Superatomic Boolean Algebras: maximal rigidity},
author = {Saharon Shelah},
journal= {arXiv preprint arXiv:math/0009075},
year = {2007}
}