Generic stabilizers associated with a peculiar half-spin representation. Appendix to: SPINORS AND ESSENTIAL DIMENSION by S. Garibaldi and R. Guralnick
Generic stabilizers associated with a peculiar half-spin representation. Appendix to: SPINORS AND ESSENTIAL DIMENSION by S. Garibaldi and R. Guralnick
复制标题
与特殊的半自旋表示相关的通用稳定器。
DOI:
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
A. Premet
中科院分区:
文献类型:
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作者:
S. Garibaldi;R. Guralnick;A. Premet
We prove that spin groups act generically freely on various spinor modules, in the sense of group schemes and in a way that does not depend on the characteristic of the base field. As a consequence, we extend the surprising calculation of the essential dimension of spin groups and half-spin groups in characteristic zero by Brosnan–Reichstein–Vistoli (Annals of Math., 2010) and Chernousov–Merkurjev (Algebra & Number Theory, 2014) to fields of characteristic different from 2. We also complete the determination of generic stabilizers in spin and half-spin groups of low rank.
DOI:
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发表时间:
2012
期刊:
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影响因子:
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作者:
Liebeck, Martin W.;Seitz, Gary M.
通讯作者:
Seitz, Gary M.
影响因子:
1.8
作者:
R. Lötscher
通讯作者:
R. Lötscher