Automorphisms mapping a point into a subvariety

Tuesday, April 21, 2009 -
4:30pm to 6:30pm
Given a variety $X$, a point $x$ in $X$, and a subvariety $Z$ of $X$, is there an automorphism of $X$ mapping $x$ into $Z$?  We prove that this problem is undecidable.
Speaker: 
Bjorn Poonen
MIT
Event Location: 
Fine Hall 322