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搜索结果: 1-7 共查到理学 ESSENTIAL DIMENSION相关记录7条 . 查询时间(0.102 秒)
We compute the Buhler-Reichstein essential dimension of a complex abelian variety using Kummer theory.
Essential dimension is a numerical invariant of an algebraic group G introduced by J. Buhler and the second author to study the complexity of G-torsors over a eld K. It has since been studied by se...
We prove that the essential dimension of the spinor group Spinn grows exponentially with n and use this result to show that quadratic forms with trivial discriminant and Hasse-Witt invariant are more...
In this paper we consider questions of the following type. Let k be a base eld and K=k be a eld extension. Given a geometric object X over a eld K (e.g. a smooth curve of genus g) what is the le...
We affirmatively answer a conjecture in the preprint Essential dimension and algebraic stacks,” proving that the essential dimension of an abelian variety over a number field is inʂ...
Let p be a prime integer, 1 ≤ s ≤ r integers, F a field of characteristic p.
We give an upper bound for the essential dimension of a smooth unipotent algebraic group over an arbitrary field. We also show that over a field k which is finitely generated over a perfect field, a s...

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