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Aug
25
answered Converse of “localization at a prime is local”
Aug
23
answered Can an element in a Noetherian ring have arbitrarily long factorizations?
Aug
21
answered Is there a binary operator (besides composition) closed under permutations or a notion of a metric space on permutations?
Aug
19
answered Can we construct a homomorphism from a projective module into a free module?
Aug
14
answered Question on prime ideals of ${\mathbb Z}[x]$
Aug
13
answered Is the standard definition of vector wrong?
Aug
10
answered Algebra and Analysis
Aug
6
answered Commutative rings of characteristic 2
Aug
6
answered Does every ID with subring which has a unity have an unity?
Jul
31
answered Lattices and Hasse diagrams
Jul
31
answered Is ideal an “anti-field”?
Jul
30
answered Difference between torsion and zero divisor
Jul
28
answered $R$ a local ring, also a PID. $I,J$ ideals from $R$. Show that $I \subseteq J$ or $J \subseteq I$
Jul
26
answered solution verification: find characteristic of integral domain under given conditions
Jul
25
answered Modules that have finitely many submodules
Jul
24
answered Example of a commutative, local, dual ring with nilradical $N$ such that $ann(N)\nsubseteq N$
Jul
24
asked What properties do the rings of infinite, upper-triangular matrices have?
Jul
23
answered Ideals for non commutative ring
Jul
20
answered Detailed example of a skew field different from Hamilton quaternion
Jul
17
answered Centre of matrix ring over skew field