Modul:   MAT770  Oberseminar: Algebraische Geometrie

Strict ring models for hermitian K-theory

Talk by Dr. Markus Spitzweck

Date: 16.05.11  Time: 13.15 - 14.45  Room: Y27H25

Hermitian K-theory for regular schemes on which 2 is invertible is known to be representable by a motivic spectrum which we call KQ. In the talk we will show that KQ admits a model as a strictly commutative and associative motivic symmetric spectrum. The E_oo-structure is unique if the square root of -1 is in the base. If time permits we will describe a possible new construction of hermitian K-theory for infinity categories with duality.