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Mathematics
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user26857

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 5 years
  • 13,909 profile views
  • Last seen 14 hours ago

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Top Posts (1,182) All Questions Answers | Votes Newest

42 Is Pythagoras the only relation to hold between $\cos$ and $\sin$? Sep 19 '14
17 Is quotient of a ring by a power of a maximal ideal local? Apr 9 '14
17 Quotient of polynomials, PID but not Euclidean domain? Jul 11 '14
16 Does Nakayama Lemma imply Cayley-Hamilton Theorem? Jul 8 '15
16 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 '15
15 Does such localization of integral extension preserve inclusion? May 15 '16
14 Integral domain with a finitely generated non-zero injective module is a field Jun 9 '14
13 Example of a ring such that $R^2\simeq R^3$, but $R\not\simeq R^2$ (as $R$-modules) Jan 9 '16
11 Show that $1\otimes (1,1,\ldots)\neq 0$ in $\mathbb{Q} \otimes_{\mathbb{Z}} \prod_{n=2}^{\infty} (\mathbb{Z}/n \mathbb{Z})$. Aug 19 '15
11 Irreducible Polynomials over Finite Fields May 18 '15
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