Questions tagged [p-groups]

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4 votes
3 answers
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Representation theory of p-groups in particular upper tringular matrices over F_p

Finite p-groups - have p^n elements by definition. According to WP there is rich structure theory. Question: How far is representation theory of p-groups is understood? In case this question is too ...
Alexander Chervov's user avatar
21 votes
0 answers
567 views

p-groups as rational points of unipotent groups

Is it true that every finite p-group can be realized as the group of rational points over $\mathbb{F_p}$ of some connected unipotent algebraic group defined over $\mathbb{F_p}$? For abelian p-groups, ...
Georges's user avatar
  • 221
13 votes
1 answer
441 views

Variety of nilpotent Lie algebras or $p$-groups

Here's a couple of analogous questions, one in terms of finite-dimensional complex Lie algebras and one in terms of finite $p$-groups; I'd be interested in an answer to either: 1) Let $\mathcal{L}$ ...
YCor's user avatar
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7 votes
0 answers
382 views

How can I get my hands on McKay's "Finite p-groups" lecture notes?

How can we find Susan McKay's "Finite $p$-groups" lecture notes? The notes I'm talking about are these. I emailed Peter Cameron, but he has since moved to a different university, and has no ...
Steve D's user avatar
  • 4,365
6 votes
1 answer
204 views

Is there a subgroup of a non-abelian $p$-group $G$ with a large nilpotency class?

Let $G$ be a non-abelian $p$-group ($p\ne2$). Does there exist a group $H\subset G$ such that both 1, 2 are satisfied? $|H| = |G|/p$. $c(H)\geq c(G) - 1$.
solver6's user avatar
  • 291
5 votes
0 answers
293 views

A class 3 group of order 243

Let G be a group of order $243=3^5$. We denote by $(G_i)$ its lower central series and assume that $G$ has class $3$ and that $|G:G_2|=|G_3|=9$. We assume moreover that the cubing map factors as a (...
user avatar
4 votes
1 answer
195 views

Finite p-groups and their fibered products

Is every finite $p$-group an epimorphic image of a fibered product of two finite $p$-groups which can be generated by $2$ elements?
Pablo's user avatar
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2 votes
1 answer
215 views

Union of conjugates in p-groups

Fix a prime number $p$. Is there a sequence $\{a_k\}_{k \in \mathbb{N}}$ of real numbers with $$\lim_{k \to \infty} a_k = 0$$ such that for any finite $p$-group $G$, and any subgroup $H \leq G$ with ...
Pablo's user avatar
  • 11.2k