Structure of Witt Rings and Quotients of Abelian Group Rings
Structure of Witt Rings and Quotients of Abelian Group Rings
In this paper we give a detailed exposition of some of the results announced in [18]. The primary motivation for this work is Witt's observation [31, Satz 7] that if F is a field of characteristic #72, his ring 1V(F) of classes of anisotropic quadratic forms may be written as …