Centres of Centralizers of Unipotent Elements in Simple Algebraic Groups(Memoirs of the American Mathematical Society)

简单代数群中的幂单元中心化子的中心(美国数学学会专刊 第210卷)

代数几何学

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作      者
出版时间
2011年03月30日
装      帧
平装
ISBN
9780821847695
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页      码
188
开      本
26 cm.
语      种
英文
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图书简介
Let (G) be a simple algebraic group defined over an algebraically closed field (k) whose characteristic is either (0) or a good prime for (G), and let (uin G) be unipotent. The authors study the centralizer (C_G(u)), especially its centre (Z(C_G(u))). They calculate the Lie algebra of (Z(C_G(u))), in particular determining its dimension; they prove a succession of theorems of increasing generality, the last of which provides a formula for (dim Z(C_G(u))) in terms of the labelled diagram associated to the conjugacy class containing (u).
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