Tag: abstract-algebra
- How these two product came in $x^n-1$
- Proving $\langle x\rangle \cap \langle y\rangle \space \subseteq \space \langle xy \rangle$ using that $\langle y \rangle$ is a prime ideal
- If $H$ is a special subgroup of $G$, then is $H$ a normal subgroup of $G$
- If $tr. deg. F/K=r$ then $tr.deg. F(x_1,\ldots,x_n)/K(x_1,\ldots,x_n)=r$.
- What is the meaning of a set $G$(cyclic Group)
- Tensor product and dual of $k$-vector spaces over a $k$-algebra: what is the dimension
- Ring of formal power series is not always local ring
- Ideal topology on commutative ring
- Left identity and maximal left ideal
- The definition of the contraction $\iota_\wedge (e)$