Penn Arts & Sciences Logo

Galois Seminar

Friday, July 6, 2007 - 3:15pm

Danny Krashen

Yale University and Penn

Location

University of Pennsylvania

DRL 4N30

Note time.

In this talk I will give generalizations of the classical fact due to Albert that whenever Q_1 and Q_2 are quaternion algebras over a field F such that their tensor product is not a division algebra, one may find a quadratic extension L/F which embeds in both algebras. Our methods used to generalize this fact are geometric, and are based on "twisted" versions of Segre maps.