Logic Seminar

Filippo CalderoniRutgers University
A descriptive view of left-orderable groups

Friday, October 28, 2022 - 2:45pm
Malott 206

For a countable left-orderable group G, let LO(G) be the compact Polish space of its left-orderings. In this talk we discuss the complexity of LO(G) modulo the conjugacy G-action. In particular, motivated by a question of Deroin, Navas, and Rivas, we use generic ergodicity to isolate new classes of left-orderable groups for which LO(G)/G is not standard. This is joint work with Adam Clay.