49

Questions
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21
44
votes
9
answers
3k
views

What are “classical groups”?

dec 8 11 at 13:52 Alain Valette 6,469●14●26

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28
votes
3
answers
2k
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Origin of terms “flag”, “flag manifold”, “flag variety”?

jan 31 at 17:13 Al-burcas 101●1●3

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27
votes
4
answers
2k
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What role does the “dual Coxeter number” play in Lie theory (and should it be called the “Kac number”)?

dec 18 11 at 4:27 brandyn 175●5

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27
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0
answers
534
views

Implications of non-negativity of coefficients of arbitrary Kazhdan-Lusztig polynomials?

dec 1 at 14:09 Jim Humphreys 26.4k●38●86

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22
votes
8
answers
5k
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Is Galois theory necessary (in a basic graduate algebra course)?

mar 24 12 at 0:06 philip dabous 1●1

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19
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1
answer
403
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Is there any need to study Coxeter systems (W,S) with S infinite?

jan 31 at 21:15 Lisa Carbone 31●2

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18
votes
5
answers
2k
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Is there a reasonable way to refer to a 23 page article with 28 authors?

oct 15 10 at 13:09 Wadim Zudilin 8,694●1●24●59

3
18
votes
3
answers
862
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What was Casimir’s precise role in describing the center of the universal enveloping algebra of a semisimple Lie algebra?

apr 11 12 at 14:19 Paul Skerritt 336●3●6

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17
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4
answers
2k
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How did “Ore’s Conjecture” become a conjecture?

oct 21 11 at 18:45 Jim Humphreys 26.4k●38●86

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15
votes
0
answers
295
views

Applications of the surjectivity of Brauer’s decomposition map over arbitrary fields?

apr 22 12 at 17:45 Jim Humphreys 26.4k●38●86

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