Mathematics
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user26857
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All Questions Answers
Score Newest
answer
57
Is Pythagoras the only relation to hold between $\cos$ and $\sin$?
Sep 19, 2014
answer
31
Is quotient of a ring by a power of a maximal ideal local?
Apr 9, 2014
answer
20
Let $n$ be an integer greater than $1$. In a ring in which $x^n = x$ for all $x$, show that $ab=0$ implies $ba = 0$.
Oct 22, 2015
answer
20
The number of ring homomorphisms from $\mathbb{Z}_m$ to $\mathbb{Z}_n$
Dec 7, 2015
answer
19
Integral domain with a finitely generated non-zero injective module is a field
Jun 9, 2014
answer
19
Does Nakayama Lemma imply Cayley-Hamilton Theorem?
Jul 8, 2015
answer
18
Quotient of polynomials, PID but not Euclidean domain?
Jul 11, 2014
answer
17
Is $R$ a PID if every submodule of a free $R$-module is free?
Nov 18, 2014
answer
17
Exercise from Atiyah-Macdonald, Chapter 1, 2.iv)
Feb 24, 2014
answer
16
Finitely many prime ideals lying over $\mathfrak{p}$
Apr 14, 2014
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How to flag a low quality answer in such a way the community can decide if this has to be deleted or not?
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Is it possible to withdraw a deletion vote?
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Protect questions. Practical reasons.
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Why only 10k+ rep users can see all the deleted questions/answers?
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Is a domain all of whose localizations are noetherian itself noetherian ?
11
Are there irreducible ideals that are not primary in $K[X_1,\dots,X_n,\dots]$?
10
Hilbert's Nullstellensatz on polynomials with integer coefficients
8
Radical generation of ideals in Noetherian rings
5
Macaulay's example of prime ideals in $\mathbb C[X_1,X_2,X_3]$ having large number of generators

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