29 April 2020, Kolkata time 8:40 pm
SEMINAR SERIES ON RECENT PROGRESS IN GEOMETRIC COMPLEXITY THEORY
Zoom Meeting Id: 87525612114
Invariant Theory and Matrix Normal Models
Technical University Berlin.
We describe connections between invariant theory and maximum likelihood estimation (ML estimation), in the context of matrix normal models. Namely, we link ML estimation in that case to the left right action of SLxSL on tuples of matrices. This enables us to characterize ML estimation by stability under that group action. To illuminate the theory the talk puts emphasis on several examples. Based on joint work with Carlos Améndola, Kathlén Kohn and Anna Seigal.