13

Questions
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1
6
votes
2
answers
482
views

Polynomial with prime powers values

aug 12 10 at 18:53 Jorge Miranda 116●1●2●7

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3
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0
answers
322
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Representation of rational numbers as the sum of 1/k [closed]

jul 22 10 at 13:54 falagar 1,703●4●23

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10
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2
answers
1k
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Special cases of Dirichlet’s theorem

jul 23 10 at 22:05 Yemon Choi 8,437●1●19●44

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16
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8
answers
2k
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Function with range equal to whole reals on every open set

dec 12 10 at 11:55 Sune Jakobsen 1,009●1●8●23

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22
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7
answers
3k
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Problems known to be in both NP and coNP, but not known to be in P

jul 14 11 at 20:00 Gil Kalai 10.7k●6●80●144

2
7
votes
2
answers
299
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Checking whether given binary operation is a group operation

jul 14 10 at 9:31 Gjergji Zaimi 37.5k●2●72●149

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5
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3
answers
1k
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Finite groups with elements of order n

jul 14 10 at 11:20 Francesco Polizzi 18.9k●2●34●55

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13
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2
answers
1k
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Inverting the totient function

jun 3 11 at 7:49 Dan Brumleve 630●3●15

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11
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1
answer
809
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Distinct numbers in multiplication table

jul 13 10 at 6:06 Gerry Myerson 15.7k●1●47●87

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8
votes
2
answers
3k
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Finite nonabelian groups of odd order

jul 14 10 at 4:41 Amitesh Datta 827●8●14

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