Gaps between values of positive definite quadratic forms
Gauss sums and solutions to simultaneous equations over
Generating functions of finitely generated Witt rings
Geometric invariants of link cobordism.
Geometry of normed bilinear maps and the 16-square problem.
Graded Witt Rings of Elementary Type.
Grothendieck and Witt groups in the reduced theory of quadratic forms
Abstract. Let F be a formally real field. Denote by G(F) and the Grothen-dieck group of quadratic forms over F and its torsion subgroup, respectively. In this paper we study the structure of the factor group . This reduced Grothendieck group is a free Abelian group. The main results of the paper describe some sets of generators for , which in many cases allow us to find a basis for the group. Throughout the paper we use the language of the reduced theory of quadratic forms. In the final part...
Groupes de Witt d'un corps de caractéristique 2.
Gruppentheoretischer Beweis des Satzes von Hurwitz-Radon über die Komposition quadratischer Formen.