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user26857
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awarded
 Organizer
revised
Number of generators of $\mathfrak m$-primary ideals in $k[x, y]$
edited tags and some small improvements
suggested
Approve
Local ring $(R,\mathfrak m)$ such that $\mathfrak m^2$ is the unique minimal ideal
suggested
Approve
Number of generators of $\mathfrak m$-primary ideals in $k[x, y]$
revised
If the quotient of a local ring is regular, does that imply that the original ring must be regular?
deleted 8 characters in body
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$H_{I}^{n}(M)\cong H_{I}^{n}(R)\otimes_R M.$
Also posted on MSE: math.stackexchange.com/questions/392162/…
answered
If the quotient of a local ring is regular, does that imply that the original ring must be regular?
comment
When powers of matrices are represented as a sum of integral matrices
I can't understand a word from what you say: minimal polynomial is integral? What is this supposed to mean? And again: what eigenvalues are you talking about when work with matrices over a commutative ring, not over a field?
awarded
 Citizen Patrol
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When powers of matrices are represented as a sum of integral matrices
What eigenvalues? What if the characteristic polynomial has no roots in $R$?
awarded
 Yearling
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Primary ideals in valuation rings
@Matthe Ok. I've read the whole topic and I've understood that the exercise in Bourbaki is wrong.
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Primary ideals in valuation rings
@Mahdi Is there a definition of primary ideals for noetherian rings and another one for non-noetherian rings?
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When does "second annihilator" of a (principal) ideal equal the ideal itself , ie $Ann_R(Ann_R(r))=Rr$?
math.stackexchange.com/questions/384374/…
answered
Are f.g. projective modules free over total quotient ring of a reduced non-noetherian commutative ring
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Are f.g. projective modules free over total quotient ring of a reduced non-noetherian commutative ring
manoj's example comes from that of QiL given here: math.stackexchange.com/questions/294384/…
comment
Are f.g. projective modules free over total quotient ring of a reduced non-noetherian commutative ring
This question is also posted on MSE: math.stackexchange.com/questions/296109/…
revised
Hilbert's Nullstellensatz on polynomials with integer coefficients
deleted 44 characters in body
answered
Hilbert's Nullstellensatz on polynomials with integer coefficients
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Projective modules over semi-local rings
For a proof in the commutative case see math.stackexchange.com/questions/150944/…
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