On Multiples of Round and Pister Forms.
On n-derivations and Relations between Elements rⁿ-r for Some n
We find complete sets of generating relations between the elements [r] = rⁿ - r for and for n = 3. One of these relations is the n-derivation property [rs] = rⁿ[s] + s[r], r,s ∈ R.
On near-neighbor quadratic forms. (Autour des formes quadratiques quasi-voisines.)
On nonary cubic forms.
On nonary cubic forms: II.
On nonary cubic forms: III.
On numbers of type
On numbers with a unique representation by a binary quadratic form
On octahedral extensions of and quadratic -curves
We give a necessary condition for a surjective representation Gal to arise from the -torsion of a -curve. We pay a special attention to the case of quadratic -curves.
On orthogonal decomposition of homogeneous polynomials
On positive definite Hermitian forms.
On positive definite quadratic polynomials
On quadratic forms.
On Quadratic Forms in 3-Manifolds.
On Quadratic forms isotropic over the function field of a comic.
On quadratic forms of height 3 and degree . (Sur les formes quadratiques de hauteur 3 et de degré au plus 2.)
On quotients of the space of orderings of the field ℚ(x)
In this paper we present a method of obtaining new examples of spaces of orderings by considering quotient structures of the space of orderings - it is, in general, nontrivial to determine whether, for a subgroup the derived quotient structure is a space of orderings, and we provide some insights into this problem. In particular, we show that if a quotient structure arising from a subgroup of index 2 is a space of orderings, then it necessarily is a profinite one.
On Rank 4 Quadratic Spaces with Given Arf and Witt Invariants.
On rational automorphs of quadratic forms
On Real Local-Global Principles.