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Questions
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Can Sierpinski’s anisotropic bicolouring of the plane, assuming the continuum hypothesis (CH), be extended to three dimensions?

jul 22 11 at 13:30 Stefan Geschke 10.6k●1●15●37

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4
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How fast can the base-bumping function in Goodstein’s theorem grow?

may 30 11 at 14:16 Andreas Weiermann 221●2●1

 
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651
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What sums of equal powers of consecutive natural numbers are powers of the same order?

feb 11 11 at 12:13 Tito Piezas III 667●2●9

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587
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What is known about the polynomial factorization of power series?

aug 16 at 16:19 John Bentin 770●1●4●11

 
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417
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What patterns have been measured in the graph of the number of two-prime-sum representations of even numbers?

feb 4 11 at 5:44 Aaron Meyerowitz 11.8k●1●10●31

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What polynomials biject from $\mathbb{N}^{2}$ to $\mathbb{N}$?

nov 7 10 at 20:23 John Bentin 770●1●4●11

 
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367
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Is the following statement a correct formulation of the (much doubted) P = NP conjecture?

mar 14 11 at 23:02 Michael Beeson 511●2●10

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329
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A sequential optimizing task

sep 4 10 at 9:38 John Bentin 770●1●4●11

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311
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How aspherical can a Gömböc be?

feb 23 11 at 11:34 John Bentin 770●1●4●11

 
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3
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244
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How long can a primal egyptian fraction be, that optimally approaches unity?

jan 20 at 23:36 Goldstern 5,310●1●12●27

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