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seen Apr 6 at 14:52

Mar
22
awarded  Yearling
Mar
22
accepted Centralizer of unipotent element of simple groups
Mar
22
answered Centralizer of unipotent element of simple groups
Mar
17
comment Existance of semisimple elements in a torus.
@jack Schmidt: Thanks a lot. I read the discussion. If I understand it correctly, my question has positive answer for large enough $p$. But there is no reference in type of book or paper which characterized "large enough $p$".
Mar
16
comment Existance of semisimple elements in a torus.
@ Jack Schmidt: Do you know any reference for the assertion $``\underline{ for~any~specific~group~ of~ the~ algebraic~ closure,~ it~ is~ true~ for~ all~ but~ finitely~ many~ finite~ fields}"$?
Mar
16
revised Existance of semisimple elements in a torus.
deleted 9 characters in body; edited title
Mar
16
asked Existance of semisimple elements in a torus.
Mar
11
comment dimension of a finie simple group of Lie type.
Actually we know that $dim(C_G(g))\geq rank(G)$ for every $g\in G$. So dimeson is defined at least for centralizers of elements of $G$.
Mar
10
comment dimension of a finie simple group of Lie type.
@ Jack Schmidt: I become a little confused! Did you mean that if $H$ be a subgroup of finite simple group of Lie type, then its dimension is not defined?
Mar
10
comment dimension of a finie simple group of Lie type.
Is $dim(GL(n,q))=n^2$?
Mar
10
asked dimension of a finie simple group of Lie type.
Mar
4
asked A dense subset of a finite group
Feb
21
revised Centralizer of unipotent element of simple groups
added 4 characters in body
Feb
21
revised Centralizer of unipotent element of simple groups
added 155 characters in body
Feb
20
asked Centralizer of unipotent element of simple groups
Feb
7
comment Centralizer of involutions in simple groups.
@ jack Schmidt: Thanks for your explanation.
Feb
7
accepted Centralizer of involutions in simple groups.
Feb
6
comment Centralizer of involutions in simple groups.
@ jack Schmidt: At the first, I really thank you for your interesting answer. I saw the table (in reference), however I didn't read all the book, but I couldn't calculate myself! For example in $PSL(3,5)=A_2(5)$, according the table centralizer of involution is $A_1(5)$, that its size is 60. But this is wrong! Would you please explain for me how I should use the table. Thanks a lot again.
Feb
5
revised Centralizer of involutions in simple groups.
edited tags; edited title
Feb
5
asked Centralizer of involutions in simple groups.