Speaker: Sergey Galkin

Title: Calabi-Yau threefolds from elliptic curves, Grassmannians, sextonions,...

Date: June 15, 2014, 14:00 - 15:00

Place: University of Alberta, Edmonton

I will review some new constructions of Calabi-Yau threefolds with Picard number one (or small) and degrees including 21, 33, 64, 72, 230. The common feature of these constructions is that these threefolds are embedded in some simple varieties with higher Picard number as complete intersection of non-ample line bundles, or as zeroes of a section of a vector bundle for which Lefschetz or Sommese theorem fails. I will also construct some of their mirror dual one-parameter families.