Big cycles and volume functions

Tuesday, February 26, 2013 -
4:30pm to 6:00pm
The volume of a divisor is an important invariant measuring the "positivity" of its numerical class. I will discuss an analogous construction for cycles of arbitrary codimension. In particular, this yields geometric characterizations of big cycle classes modeled on the well-known criteria for divisor and curve classes.
Speaker: 
Brian Lehmann
Rice University
Event Location: 
Fine Hall 322