**Algebraic Structures**

- On ring theory
- Abelian group of order $p^2$
- Ideal and maximal ideal
- Finite cyclic group and generator
- Being a group implies that $n$ is prime
- Cosets and subgroup
- An abelian group
- Order of an element
- They are isomorphic
- Normal subgroup
- Cyclic group
- Commutative ring
- Some examples on rings
- An exercise on a ring
- Von Neumann ring
- Endomorphism and abelian group
- An ideal of $\mathbb{Z}[i]$
- Non commutative ring but commutative quotient
- On some homomorphisms
- Finite matrix group
- Even permutation
- Least number $n$ such that embeds

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