Bernd Sturmfels, MPI Leipzig / UC Berkeley

Tuesday, February 18, 2020 - 4:00pm to 5:00pm

BAG 154

This lecture spans a bridge from 19th century geometry to 21st century applications. We start with a classical theme that was featured in the January 2020 issue of the

*Notices of the American Mathematical Society*, namely the 3264 conics that are tangent to five given conics in the plane. We discuss the computation of these conics, by solving a system of polynomial equations with numerical methods that are fast and reliable. We conclude with a problem in statistics, namely maximum likelihood estimation for linear Gaussian covariance models.