Question about the ideal $I=(xy,yz,zx)$ in the ring $\mathbb C[x,y,z]$.
60391
Ideal Generated by Three Elements in Polynomial Ring
31933
$x^2 = 1$ in the ring $\mathbb{Z}/n \mathbb{Z}$
21946
What do prime ideals in $k[x,y]$ look like?
117590
Let I and J be ideals of a ring R. Show by example that the set of products {xy | x ∈ I, y ∈ J} need not be an ideal
148208
In Noetherian ring $R$, ideal $I\subset R$, $P\in\mathrm{Ass}(I),P=I:a$ for some $a\in R$.
36150
Ideal in a ring of continuous functions
1720
Show that $\langle 2,x \rangle$ is not a principal ideal in $\mathbb Z [x]$
99423
Is it true every ideal of $\mathbb{Z}[x]$ is finitely generated?
69649
If an ideal contains the multiplicative identity, then it is the whole ring
111996
Maximal and Prime Ideal in Z
47134
Ideals generated by two elements
50241
Cardinality of the quotient ring $\mathbb Z_5[i]/\langle 1+i\rangle$
58425
Defining the Product of Ideals
116883
About ideals in a ring which is a $k$ vector space
18186
Prove that ideal $I = \langle X^2,X+1\rangle$ is principal or not (in $\mathbb{Z}[X]$ and $\mathbb{Q}[X]$ )
33576
Non-principal ideal in $K[x,y]$?
111114
Prove that an ideal in $k[x,y]$ is a prime ideal