bio  website  mathematik.uniwuerzburg.de/… 

location  Würzburg  
age  48  
visits  member for  2 years, 9 months 
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I'm a professor of mathematics at the University of Würzburg (Germany). For further infos see my web page.
4h

comment 
quasiprimitive unsoluble groups
@Colin Reid: I believe that the OP means the notion of quasiprimitivity for linear groups, which is quite different from the one for permutation groups. 
Jul 15 
comment 
A particular example of solvable group
Rather than asking a new question in the comments, you should either edit your question, or raise a new question. In addition, it could be useful to know why you are interested in these things. 
Jul 13 
comment 
A particular example of solvable group
I doubt that this construction works: The cyclic group $N$ has an abelian automorphism group, so the nonabelian group $H$ cannot act faithfully on $N$. In particular, $H$ cannot act fixedpointfreely, as it should for $N$ being the Frobenius kernel. 
Jul 12 
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A particular example of solvable group
Which Frobenius groups bring the quotient close to $3$? 
Jul 10 
revised 
A double centralizing theorem for finite groups
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Jul 9 
comment 
groups of order $ p(p^21) / 4 $ where $p$ is a prime
I think that one does not need CFSG. $G$ is not $3$transitive (because its order is too small), so the point stabilizer $G_1$ of degree $p$ is not $2$transitive. Thus, by Burnside, $G_1=\mathbb F_p\rtimes C$, where $C$ is the subgroup of order $(p1)/4$ of $\mathbb F_p^\star$. From here, either the techniques of transitive extensions should work; or if that doesn't, we simply note that $G_1$ is Frobenius, so $G$ is a Zassenhaus group. The latter ones got classified without CFSG. 
Jun 27 
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GV bound coding theory
That's a repetition of mathoverflow.net/questions/172775/codingtheoryquestion which was closed and answered in a comment. Can someone (with sufficiently high reputation) remove rather than just close this question? 
Jun 27 
comment 
$6$ points lie on a conic if and only if $ABC$ and $A_0B_0C_0$ are perspective
I believe that the theorems of Pascal and Brianchon will be relevant here. 
Jun 25 
revised 
Permutation Groups Containing noncommuting $p$cycles
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Jun 25 
revised 
Permutation Groups Containing noncommuting $p$cycles
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Jun 25 
revised 
Permutation Groups Containing noncommuting $p$cycles
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Jun 25 
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Permutation Groups Containing noncommuting $p$cycles
@GeoffRobinson: I rewrote the arguments. Hope the case $n=\lvert\Omega\rvert=p+1$ is clearer now. 
Jun 25 
revised 
Permutation Groups Containing noncommuting $p$cycles
some clarifications and rewordings 
Jun 25 
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Permutation Groups Containing noncommuting $p$cycles
@GeoffRobinson: I don't understand your last comment. Unless I made an error, my answer shows that in the nonMersenne case $\langle x,y\rangle$ is simple, which is more than you asked for. 
Jun 24 
revised 
Permutation Groups Containing noncommuting $p$cycles
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Jun 24 
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Permutation Groups Containing noncommuting $p$cycles
@Frieder Ladisch: Thanks for pointing out the errors. I'm still a little in haste, but I hope things are somewhat correct now. 
Jun 24 
revised 
Permutation Groups Containing noncommuting $p$cycles
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Jun 24 
revised 
Permutation Groups Containing noncommuting $p$cycles
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Jun 24 
revised 
Permutation Groups Containing noncommuting $p$cycles
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Jun 24 
revised 
Permutation Groups Containing noncommuting $p$cycles
added 577 characters in body 