منابع مشابه
Isotropy over Function Fields of Pfister Forms
The question of which quadratic forms become isotropic when extended to the function field of a given form is studied. A formula for the minimum dimension of the minimal isotropic forms associated to such extensions is given, and some consequences thereof are outlined. Especial attention is devoted to function fields of Pfister forms. Here, the relationship between excellence concepts and the i...
متن کاملCharacterization of Minimal Pfister Neighbors via Rost Projectors
Let φ be an anisotropic 9-dimensional quadratic form over a field (of characteristic ̸= 2). We show that the projective quadric given by φ possesses a Rost projector if and only if φ is a Pfister neighbor. The following consequence of this result gives the initial step in the construction [10] of the filed with the u-invariant 9: if φ is not a Pfister neighbor and the Schur index of its even Cli...
متن کاملPfister Involutions
The question of the existence of an analogue, in the framework of central simple algebras with involution, of the notion of Pfister form is raised. In particular, algebras with orthogonal involution which split as a tensor product of quaternion algebras with involution are studied. It is proven that, up to degree 16, over any extension over which the algebra splits, the involution is adjoint to...
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15 صفحه اولinterpersonal function of language in subtitling
translation as a comunicative process is always said to be associated with various aspects of meaning loss or gain. subtitling as a mode of translating, due to special discoursal and textual conditions imposed upon it, is believed to be an obvious case of this loss or gain. presenting the spoken sound track of a film in writing and synchronizing the perception of this text by the viewers with...
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ژورنال
عنوان ژورنال: Journal of Algebra
سال: 1995
ISSN: 0021-8693
DOI: 10.1006/jabr.1995.1371