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Johannes Hahn

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Registered User

Name	Johannes Hahn
Member for	3 years
Seen	2 hours ago
Website	minet.uni-jena.de/algebra/personen/hahn/hahn.html
Location	Jena, Germany
Age	26

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94

125

votes

28

answers

11k

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Which journals publish expository work?

journals exposition

mar 29 at 23:50 William 372●1●9

52

54

votes

8

answers

6k

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What do heat kernels have to do with the Riemann-Roch theorem and the Gauss-Bonnet theorem?

dg.differential-geometry manifolds ap.analysis-of-pdes ag.algebraic-geometry

mar 23 at 7:02 chairman mao 1

28

40

votes

2

answers

1k

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a categorical Nakayama lemma?

ac.commutative-algebra ag.algebraic-geometry gr.group-theory

6h ago Daniel Miller 2,341●9●23

16

35

votes

5

answers

2k

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Why are abelian groups amenable?

gr.group-theory measure-theory

jan 9 at 11:35 Theo Buehler 3,696●1●11●25

42

32

votes

10

answers

2k

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papers archives? (especially not indexed by google)

big-list

feb 7 at 11:24 Thomas Fischer 1

10

30

votes

2

answers

874

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Size of the smallest group not satisfying an identity.

gr.group-theory finite-groups

feb 12 10 at 23:09 Tom Church 4,430●13●33

4

15

votes

0

answers

295

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

rt.representation-theory gr.group-theory finite-groups

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

1

9

votes

2

answers

1k

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Is Soergel’s proof of Kazhdan-Lusztig positivity for Weyl groups independent of other proofs?

co.combinatorics coxeter-groups hecke-algebras

aug 17 10 at 11:59 Geordie Williamson 1,237●4●10