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1d
answered $UTM_n[D]$ is artinian
May
26
answered Ring with no identity (that has a subring with identity) has zero divisors.
May
23
answered $I$ is a two sided ideal in $A$, $L$ and $M$ are $A$-modules such that $L \subset M$. If $l\in L$ and $l\in MI$ then $l \in LI$?
May
20
answered Zorn's lemma converse? (Context: Maximal proper subgroups)
May
19
answered $R$ is a finite ring and for every $a \in R$, there exists a natural number $n(a)$ such that $a^{n(a)}=a$
May
18
asked Example of a commutative, local, dual ring with nilradical $N$ such that $ann(N)\subsetneq N$
May
15
answered Maximal left ideals $\leftrightarrow$ simple left modules
May
14
answered Can one extent to (left) modules on IBN ring the results of vector spaces?
May
14
answered Is there a measure for how thin or squat a triangle is?
May
13
answered Show that in a right artinian ring $R$, every prime ideal is a maximal ideal.
May
12
answered Non-Commutativity Implies Non-Associativity?
May
11
answered how to tell if a ring is noetherian
May
11
answered Can I say that $R= Rr + I$?
May
7
answered Basic rings (e.g. non commutative) $A$ such $A^n \simeq A^m$ and $n\neq m$
May
7
answered Prove there generally is no isomorphism between $R[x]/(x^2-a)$ and $R^2$
May
6
answered Universal property of natural number semi-ring
May
6
answered Hints on how to approach a problem concerning rings/field in Abstract Algebra
May
6
answered Question about working in modulo?
May
5
answered In a ring $(A,+, \cdot)$ if $aba = a$ then $bab = b$ and all element non zero in $A$ is invertible.
May
4
answered Is there any geometrical interpretation as to why matrix product is not commutative?