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 Inquisitive
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Apr
12
awarded  Inquisitive
Mar
29
awarded  Yearling
Mar
2
asked If $P_I$ is a parabolic subgroup in $GL_n(k)$, is $P_I$ conjugate to ${P_I}^-$ under some element of $W$?
Feb
24
asked Is there a quick way to find the longest element of a subgroup of a Weyl group?
Feb
24
accepted What is the longest element of $S_n$ as a product of adjacent transpositions?
Feb
22
asked What is the longest element of $S_n$ as a product of adjacent transpositions?
Jan
14
asked Why are $\mathfrak{pgl}_n\simeq\mathfrak{sl}_n$ when characteristic does not divide $n$?
Nov
3
awarded  Popular Question
May
24
awarded  Popular Question
Apr
20
asked Vector bundles on $\mathbb{A}^1_k$ with doubled origin?
Apr
20
accepted Is the map $Q\sqcup Q\to Q$ of quasi-projectives finite?
Feb
15
asked Is the map $Q\sqcup Q\to Q$ of quasi-projectives finite?
Feb
15
accepted Precomposing a rational function $f$ with a birational isomorphism $g$ to make $f\circ g$ regular?
Jan
5
asked Precomposing a rational function $f$ with a birational isomorphism $g$ to make $f\circ g$ regular?
Jan
5
awarded  Yearling
Jan
5
accepted Does $\exp(\ln(I+A))=I+A$ when $\|A\|<1$?
Jan
5
accepted Can $\operatorname{Spec}(R[X])$ ever be finite?
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Apr
4
comment On Hatcher's proof that $H_0(X)$ is a direct sum of $\mathbb{Z}$s?
@Mike That's certainly clear! Thanks for your comments.