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.
On reciprocity equivalence of quadratic number fields
On representations of numbers by sums of squares and quadratic fields
On representing the multiple of a number by a quadratic form
On self-similar subgroups in the sense of IFS
In this paper, we first give several properties with respect to subgroups of self-similar groups in the sense of iterated function system (IFS). We then prove that some subgroups of -adic numbers are strong self-similar in the sense of IFS.
On S-Equivalence of Seifert Matrices.
On Siegel modular forms obtained form theta series.
On some entire modular forms of an integral weight for the congruence subgroup .
On some entire modular forms of weights 5 and 6 for the congruence group .
On Some Hasse Principles over Formally Real Fields.