Essential dimension of an algebraic object is the smallest number of algebraically
independent parameters required to define the object. This notion was introduced
by Buhler, Reichstein and Serre. Relations to algebraic geometry, K-theory and
representation theory of algebraic groups will be discussed.
Links:
[1] https://www.mpim-bonn.mpg.de/de/taxonomy/term/39
[2] https://www.mpim-bonn.mpg.de/de/node/3444
[3] https://www.mpim-bonn.mpg.de/de/node/5312