In 1950, Mark Graev gave a construction of two-sided invariant metrics on free groups over metrics spaces. These metrics were later used in descriptive set theory to produce exotic Polish groups. We will describe a similar construction of metrics on free products (possibly with amalgamation) of groups with two-sided invariant metrics and discuss some applications. I will try to reduce preliminaries to minimum.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment