Justin Shih
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 Feb 4 comment Question about specifying complex 1-motives Hmm... I'm an algebraic geometer, so I don't know that much complex geometry. Why is that extension analytic again? A lot of the 1-motive he defines directly from the divisor groups. Feb 1 asked Question about specifying complex 1-motives Nov 17 awarded Teacher Nov 4 comment If $k[S]$ is noetherian, is S finitely generated? Right. So then can we make an increasing chain of ideals by picking $s_1 \in S$, setting $I_1 = (s_1)$, and then by induction picking $s_{k+1} \in$S\backslash\I_k$and setting$I_{k+1} = I_k + (s_{k+1})$? This chain eventually terminates, which I think means that$S$is finitely generated? Nov 4 comment If$k[S]$is noetherian, is S finitely generated? Oh, I see now. I guess I'm taking$k[t]$and then finding a sub-semigroup inside there, instead of taking a semigroup$S$and then making$k[S]$. Nov 4 comment If$k[S]$is noetherian, is S finitely generated? Sorry, I guess I mean the semigroup generated by the$t/a^n$. I've edited my post to reflect this change. And I'm missing something, but I don't quite understand what you mean by the elements of$S$are by definition linearly independent? Nov 4 revised If$k[S]$is noetherian, is S finitely generated? deleted 4 characters in body; added 13 characters in body Nov 4 answered If$k[S]$is noetherian, is S finitely generated? Oct 19 comment Expressions for the Square of an Integral If$I$is the value of the integral, why can't you just take$s(x) = I^2/(Au(x))$? This is probably not the answer you were looking for, so can you be more specific? Oct 19 asked Explicit examples of resolution of (projective) 3-folds over k? Oct 2 awarded Scholar Oct 2 accepted Calculations of Pic^0, Pic, NS of surfaces Sep 30 awarded Supporter Sep 29 awarded Student Sep 29 asked Calculations of Pic^0, Pic, NS of surfaces Jan 15 awarded Editor Jan 15 revised Finding the codomain of a monoid homomorphism added 551 characters in body Jan 15 comment Finding the codomain of a monoid homomorphism Whoops! I thought that "monoid homomorphism" in the title referred to the function$f$instead of the map$M \rightarrow G\$. Jan 15 answered Finding the codomain of a monoid homomorphism Oct 21 awarded Autobiographer