AG Seminar
- Event Type
- Seminar/Symposium
- Sponsor
- Christopher Dodd
- Location
- AH 145
- Date
- Nov 5, 2024 3:00 pm
- Speaker
- Jennifer Li
- Views
- 29
- Originating Calendar
- Algebraic Geometry Calendar
Title: Rational surfaces with a non-arithmetic automorphism group
Abstract :In [Tot12], Totaro gave examples of a K3 surface such that its automorphism group is not commensurable with an arithmetic group, answering a question of Mazur. We give examples of rational surfaces with the same property. Our examples Y are log Calabi-Yau surfaces, i.e., there is a reduced normal crossing divisor D in Y such that KY+D=0. This is joint work with Sebastián Torres.