# A variety with non-finitely generated automorphism group

Tuesday, September 19, 2017 -

4:30pm to 5:30pm

If X is a projective variety, then Aut(X)/Aut^0(X) is a countable group, but little is known about what groups can occur. I will construct a projective variety for which this group is not finitely generated, and discuss how the construction can adapted to give an example of a complex projective variety with infinitely many non-isomorphic real forms.

Speaker:

John Lesieutre

Penn State

Event Location:

Fine Hall 322