Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1313-1337-0 |
Объём: | 84 страниц |
Масса: | 147 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! In mathematics, a Severi-Brauer variety over a field K is an algebraic variety V which becomes isomorphic to projective space over an algebraic closure of K. Examples are conic sections C: provided C is non-singular, it becomes isomorphic to the projective line over any extension field L over which C has a point defined. The name is for Francesco Severi and Richard Brauer. Such varieties are of interest not only in diophantine geometry, but also in Galois cohomology.
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