On the Cohomological Characterization of Real Free Pro-2-Group. Antonio José Engler (1995) Manuscripta mathematica
On the diophantine equation x y + y z + z x = d Stéphane Louboutin, M. F. Newman (1998) Acta Mathematica et Informatica Universitatis Ostraviensis
On the ...-invariant for quadratics forms and the linkage of cyclic algebras. Bill Jacob, P. Mammone, R. Aravire (1993) Mathematische Zeitschrift
On the Maximality of the Orthogonal Groups in the Symplectic Groups in Characteristic Two. Roger H. Dye (1980) Mathematische Zeitschrift
On the number of square classes of a field of finite level. Becher, Karim Johannes (2001) Documenta Mathematica
On the seperation of basic semialgebraic sets by polynomials. Ludwig Bröcker (1988) Manuscripta mathematica
On trace forms of étale algebras and field extensions. Martin Epkenhans, Martin Krüskemper (1994) Mathematische Zeitschrift
On trace forms of hilbertian fields. W. Scharlau, M. Krüskemper (1988) Commentarii mathematici Helvetici
On vanishing theorems for trace forms Martin Epkenhans (1998) Acta Mathematica et Informatica Universitatis Ostraviensis
Orderings under field extensions. T.Y. Lam, R. Elman, A.R. Wadsworth (1979) Journal für die reine und angewandte Mathematik
Orthogonal Decomposition of Modular Quadratic Forms. Larry J. Gerstein (1972) Inventiones mathematicae
Orthogonal representations of Galois groups, Stiefel-Whitney classes and Hasse-Witt invariants. A. Fröhlich (1985) Journal für die reine und angewandte Mathematik
Parameter spaces for quadrics Anders Thorup (1996) Banach Center Publications The parameter spaces for quadrics are reviewed. In addition, an explicit formula for the number of quadrics tangent to given linear subspaces is presented.
Pfaffians, central simple algebras and similtudes. R. Sridharan, M.-A. Knus, R. Parimala (1991) Mathematische Zeitschrift
Pfister's conjecture on quadratic Co-fields. David B. Leep (1990) Journal für die reine und angewandte Mathematik
Primitive representation of a binary quadratic form as a sum of four squares John Hunsucker (1971) Acta Arithmetica