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math.RA2008
On the Pfister Number of Quadratic Forms
R. Parimala, V. Suresh, J. -P. Tignol
The generic quadratic form of even dimension n with trivial discriminant over an arbitrary field of characteristic different from 2 containing a square root of -1 can be written in…
math.RA2008
Algebras with involution that become hyperbolic over the fonction field of a conic
Anne Quéguiner-Mathieu, Jean-Pierre Tignol
We study central simple algebras with involution of the first kind that become hyperbolic over the function field of the conic associated to a given quaternion algebra . We clas…