Corey Harris (UiO): Segre class computation and practical applications

Abstract: Segre classes are a fundamental notion in algebraic geometry, but they are unfortunately difficult to compute. Fix an ambient smooth projective toric variety T, and consider a subscheme X of a variety Y in T. In this talk I’ll explain how to compute the Segre class of X in Y, pushed forward to T.  Such computations can be used to address basic problems like ideal containment (avoiding Gröbner bases).  This is joint work with Martin Helmer.

Published Feb. 4, 2019 3:17 PM - Last modified Apr. 4, 2020 8:54 PM