EVENT DETAILS AND ABSTRACT

Title: On the irrationality of some algebraic varieties and their subvarieties
Speaker: Nathan Chen
Speaker Info: Columbia University
Brief Description:
Special Note:
Abstract:

The classical question of determining which varieties are rational has led to a huge amount of interest and activity. On the other hand, one can take on a complementary perspective - given a smooth projective variety whose nonrationality is known, how far is it from being rational? I will survey what is currently known, with an emphasis on hypersurfaces and complete intersections.