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Minseon Shin

I'm a postdoc at MPIM Bonn.

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Top posts (60) All Questions Answers | Votes Newest

9 Is there a surjective group homomorphism $GL_{n}(k) \to GL_{m}(k)$ where $n > m$? Dec 8 '15
6 For $n>1$ and a ring $R$ s.t. $k[x_1,\dots, x_n]\subset R\subset k(x_1,\dots, x_n)$ is $R$ a localization of $k[x_1,\dots, x_n]$? Aug 15 '17
5 Does taking sections commute with base change? Sep 1 '17
5 A connected ring $A$ such that $A[1/f]$ is disconnected Oct 21 '17
5 Is there a surjective morphism $\widehat{\Bbb Z} \to \Bbb Z$? Jun 22 '18
5 Kummer sequence etale topology Apr 11
4 On $A$ algebra homomorphisms $A[[X_1,…,X_n]]\to Q(A)$, where $A$ is a complete DVR Jul 24
4 Cardinality of general linear group of finite rings Dec 8 '17
4 Values of numerical polynomials on rational numbers Nov 13 '16
4 If $M$ is a finite length module over a noetherian local ring $R$, then is $\mathrm{Ext}_R^i(M, R)$ finite length as well? Jun 10 '17
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