The subject of these notes is the character variety of representations of a surface group in a Lie group. The author emphasizes the various points of view (comb

Inspired by classical geometry, geometric group theory has in turn provided a variety of applications to geometry, topology, group theory, number theory and gra

An accessible introduction to Poisson geometry suitable for graduate students.

Contains papers based on talks delivered at the AMS-IMS-SIAM Summer Research Conference on the Geometry of Group Representations, held at the University of Colo

This volume, dedicated to the memory of the great American mathematician Bertram Kostant (May 24, 1928 – February 2, 2017), is a collection of 19 invited pape