%0 Journal Article
%T Somewhere trivial automorphisms
%A Saharon Shelah
%A Juris Stepr¨ˇns
%J Mathematics
%D 1993
%I arXiv
%X It is shown to be consistent that there is a non-trivial autohomeomorphism of beta N while all such autohomeomorphisms are trivial on some open set. The model used is one due to Velickovic in which, coincidentally, Martin's Axiom also holds.
%U http://arxiv.org/abs/math/9308214v1