Constructions and Dévissage in Hermitian K-Theory

Hornbostel, Jens

Universität Regensburg, NWF I-Mathematik, D-93040 Regensburg, Germany. e-mail: [email protected]

K-Theory 26(2):p 139-170, June 2002.

We first give the ‘good’ definition of the Hermitian K-theory of an exact category with duality. Then we prove a Dévissage theorem which allows us to compare the Hermitian K-theory of a number field with the Hermitian K-theory of its integers.