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Alex Ravsky

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My CV: a mathematician. My papers.

"I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me". Isaac Newton

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84 How to prove every closed interval in R is compact? Apr 21 '13
27 Graph theoretic proof: For six irrational numbers, there are three among them such that the sum of any two of them is irrational. Jul 30 '16
23 Graph theoretic proof: For six irrational numbers, there are three among them such that the sum of any two of them is irrational. Jul 30 '16
19 Do Hausdorff spaces that aren't completely regular appear in practice? Feb 19 '19
19 Integer function which takes every value infinitely often Oct 30 '16
17 Is a finite group determined by the family of all its 2-generated subgroups? Jul 16 '13
16 A chess knight's moves Oct 25 '16
15 Asymptotics of the sum of squares of binomial coefficients Apr 24 '13
14 How to show $\{\{x\}\} \neq x$? Apr 19 '13
12 Asymptotics of the sum of squares of binomial coefficients Apr 27 '13
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