On 14-dimensional quadratic forms in , 8-dimensional forms in , and the common value property.
On a conjecture of Izhboldin on similarity of quadratic forms.
On existence of tame Harrison map
On integral Witt equivalence of algebraic number fields
On near-neighbor quadratic forms. (Autour des formes quadratiques quasi-voisines.)
On quadratic forms of height 3 and degree . (Sur les formes quadratiques de hauteur 3 et de degré au plus 2.)
On Real Local-Global Principles.
On reciprocity equivalence of quadratic number fields
On Some Hasse Principles over Formally Real Fields.
On the Cohomological Characterization of Real Free Pro-2-Group.
On the cokernel of the Witt decomposition map
Let be a Dedekind domain with field of fractions and a finite group. We show that, if is a ring of -adic integers, then the Witt decomposition map between the Grothendieck-Witt group of bilinear -modules and the one of finite bilinear -modules is surjective. For number fields is also surjective, if is a nilpotent group of odd order, but there are counterexamples for groups of even order.
On the group .
On the Hasse principle for Witt groups.
On the ...-invariant for quadratics forms and the linkage of cyclic algebras.
On the Milnor exact sequence for global function fields
On the nonexcellence of field extensions .
On the representation of rational functions as sums of squares
On the Witt ring of a relative projective line
On the Witt rings of function fields of quasihomogeneous varieties
On trace forms of étale algebras and field extensions.