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New posts in finite-groups
Finding the number of elements of order two in the symmetric group $S_4$
abstract-algebra
group-theory
finite-groups
For which $n$, $G$ is abelian?
finite-groups
abelian-groups
$G$ is a group of odd order, show that $a^2=b^2 \Rightarrow a=b$
abstract-algebra
group-theory
proof-verification
finite-groups
can one order the elements of a finite group such that their product is equal to the first element in the list?
group-theory
finite-groups
How many non isomorphic groups of order 30 are there?
group-theory
finite-groups
For a group $G$ of order $p^n$, $G\cong H$ for some $H\le\Bbb Z_p\wr\dots\wr\Bbb Z_p$.
group-theory
finite-groups
sylow-theory
p-groups
wreath-product
Permutation of cosets
abstract-algebra
group-theory
finite-groups
group-actions
When is $\mathfrak{S}_n \times \mathfrak{S}_m$ a subgroup of $\mathfrak{S}_p$?
group-theory
finite-groups
symmetric-groups
Finite abelian $p$-group with only one subgroup size $p$ is cyclic
group-theory
finite-groups
abelian-groups
$A_6 \simeq \mathrm{PSL}_2(\mathbb{F}_9) $ only simple group of order 360
group-theory
finite-groups
simple-groups
No group of order 400 is simple
abstract-algebra
group-theory
finite-groups
What finite groups always have a square root for each element?
group-theory
finite-groups
square-numbers
Finding the automorphisms of $S_3$ by looking at the orders of the elements
abstract-algebra
group-theory
finite-groups
symmetric-groups
On Groups of Order 315 with a unique sylow 3-subgroup .
abstract-algebra
group-theory
finite-groups
abelian-groups
sylow-theory
Abelian $p$-group with unique subgroup of index $p$
abstract-algebra
group-theory
finite-groups
p-groups
Finite abelian groups - direct sum of cyclic subgroup
group-theory
finite-groups
abelian-groups
If H is a subgroup of G, then H has no more Sylow subgroups than G
abstract-algebra
group-theory
finite-groups
sylow-theory
If $G$ has only 2 proper, non-trivial subgroups then $G$ is cyclic
group-theory
finite-groups
If $H$ is a proper subgroup of a $p$-group $G$, then $H$ is proper in $N_G(H)$.
abstract-algebra
group-theory
finite-groups
p-groups
Any subgroup of index $p$ in a $p$-group is normal.
abstract-algebra
finite-groups
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