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# Questions

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### The inverse Galois problem and the Monster

feb 12 10 at 16:34 aorq 2,4701736

10
23
2
905
views

### Slick proof related to choosing points from an interval in order

apr 1 10 at 7:25 Guntram 2,3561718

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22
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721
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### Is there an associative metric on the non-negative reals?

feb 26 10 at 2:18 t3suji 2,7171813

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3
2k
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### Is the theory of categories decidable?

sep 13 at 21:13 François G. Dorais 22.7k249114

4
12
4
774
views

### Complexity of testing integer square-freeness

feb 23 10 at 23:49 Harrison Brown 7,85112877

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11
5
851
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### What’s a reasonable category that is not locally small?

dec 18 09 at 16:23 David Speyer 55.3k3102236

6
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439
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### Is there an infinity × infinity lemma for abelian categories?

nov 8 09 at 1:47 Anton Geraschenko♦♦ 13.7k348108

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3k
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### Good algorithm for finding the diameter of a (sparse) graph?

feb 11 at 14:15 Andrea Marino 111

2
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4
955
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### Representing numbers in a non-integer base with few (but possibly negative) nonzero digits

mar 13 11 at 17:17 john davis 11

4
6
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501
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### Optimally directing switches for a random walk

feb 8 11 at 22:20 Peter Shor 4,4652246