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user237522

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

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14 What is the field of fractions of $\mathbb{Q}[x,y]/(x^2+y^2)$? Aug 12 '16
9 Ideal of $k[x,y]$ invariant under an involution Sep 10 '19
7 The group of $k$-automorphisms of $k[[x,y]]$, $k$ is a field Apr 9 '17
7 Non-finitely generated, non-projective flat module, over a polynomial ring Jul 27 '15
6 When irreducible elements of a UFD remain irreducible in a ring extension Nov 1 '16
6 Which $f,g \in \mathbb{C}[x,y]$ satisfy $\mathbb{C}(fy,gy)=\mathbb{C}(x,y)$? Aug 13 '18
5 Why $\mathbb{C}(f(t),g(t))=\mathbb{C}(t)$ implies that $\gcd(f(t)-a,g(t)-b)=t-c$, for some $a,b,c \in \mathbb{C}$? Dec 15 '18
5 The group of $k$-automorphisms of $k[x_1,\ldots,x_{n},x_1^{-1},\ldots,x_n^{-1}]$ Apr 13 '17
5 When flatness of $B$ over $A$ implies flatness of $B$ over $C$, where $A \subseteq C \subseteq B$? Jun 17 '15
5 Separability of $A \subseteq C$ implies separability of $B \subseteq C$, where $A \subseteq B \subseteq C$ Jun 5 '15
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