Subequivalence relations and Epstein's induced action construction
by Greg Hjorth
Abstract: A key step in Inessa Epstein's recent proof of many orbit inequivalent actions for non-amenable groups was the method of inducing an action from a subequivalence. In the last couple of weeks Ioana, Kechris, and Tsankov have produced a preprint subjecting this construction to a rigorous analysis. I will describe her induced action construction and present their criteria for when the resulting action is mixing.
For More Information: Greg Hjorth email@example.com