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# Questions

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### When is an algebra of commuting matrices (contained in one) generated by a single matrix?

aug 9 10 at 20:47 Aaron Meyerowitz 11.6k11031

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### Why is there no Borel function mapping every countable set of reals outside itself?

sep 22 at 19:28 Andres Caicedo 14.4k14279

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### A generalization of covering designs and lottery wheels

jun 10 11 at 6:56 Aaron Meyerowitz 11.6k11031

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### Can the number of solutions $xy(x-y-1)=n$ for $x,y,n \in Z[t]$ be unbounded as n varies?

jan 13 11 at 9:39 Aaron Meyerowitz 11.6k11031

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### Integrating Powers without much Calculus

nov 29 at 21:53 Brendan McKay 9,12011333

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### Why are Goldbach laggards biased towards $2 \mod 6$?

feb 4 11 at 6:00 Aaron Meyerowitz 11.6k11031

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### Determining a generating function (of a restricted form)

jun 4 11 at 4:13 Noam D. Elkies 18.1k46391

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### Bound the error in estimating a relative totient function

feb 22 12 at 8:06 Aaron Meyerowitz 11.6k11031

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### What is the divisibility theory for Bezout Domains?

dec 10 10 at 20:40 Bill Dubuque 2,1681320

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