38

Questions
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26
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Is the set of primes “translation-finite”?

nov 19 09 at 6:22 Yemon Choi 8,446●1●19●44

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16
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2
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594
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Does left-invertible imply invertible in full group C*-algebras (discrete case)?

oct 28 11 at 7:31 Andreas Thom 13.1k●1●23●64

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2
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702
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Groups of order $n$ with a character whose degree is at least $0.8\sqrt{n}$ (say)

jun 23 11 at 23:15 Geoff Robinson 9,856●1●21●27

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13
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2
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603
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“Explicit” embedding of $\ell^1$ as a closed subalgebra of a direct sum of matrix algebras

dec 18 10 at 10:31 Mikael de la Salle 3,456●5●16

 
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6
answers
408
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Invertibility of a certain matrix indexed by the Hamming cube

mar 9 at 2:02 Brendan McKay 9,120●1●13●33

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11
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2
answers
804
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Approximating operators on Banach spaces by bounded operators on a proper dense subspace

jul 11 10 at 11:35 Bill Johnson 14.4k●1●33●60

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11
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1
answer
403
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A left inverse for the comultiplication on a Hopf von Neumann algebra

nov 30 11 at 9:41 Matthew Daws 5,489●1●8●28

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11
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1
answer
297
views

Is the space of Hankel operators complemented in B(H)?

nov 16 11 at 20:50 Yemon Choi 8,446●1●19●44

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10
votes
0
answers
244
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Can we find arbitrarily many elements of SU(2) generating a good copy of MAX($\ell_1^n$) inside VN(SU(2))?

oct 24 at 14:30 Yemon Choi 8,446●1●19●44

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10
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4
answers
662
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Can we bound degrees of complex irreps in terms of the average conjugacy class size?

apr 30 11 at 7:27 Geoff Robinson 9,856●1●21●27

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