New posts in group-theory

Spin group Spin(4,1)

When are the product of cyclic groups also cyclic? [duplicate]

Is there an Elementary Theory of the Category of Groups?

Compute the kernel of the group hom $\Omega : \Bbb{Q}^{\times} \to \Bbb{Z}^+$.

If $G/Z$ is a product of $p$-groups...

Non-abelian $p$-group; abelian subgroups of index $p$

How to find presentation of a group using GAP?

How is $\mathrm{PGL}(V)$ a subgroup of $\mathrm{P\Gamma L}(V)$?

Covering a group with the conjugates of two subgroups related by an automorphism

Extending Herstein's Challenging Exercise to Modules

Prove the order of each nonindentity element of $G$ is $p$. [closed]

An abelian group of order 100

Show that there is a positive integer $n$ such that $G \cong \ker(\phi^{n}) \times \phi^{n}(G)$

How many homomorphisms $\Psi : S_3 \rightarrow S_3$ exist?

A problem about abelian group

Action via automorphism

Definition of Simple Group

Group tables for a group of four elements.

Prove that a subgroup which contains half of all elements is a normal subgroup.

Is the free product of residually finite groups always residually finite?