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David Feldman's user avatar
David Feldman's user avatar
David Feldman
  • Member for 13 years, 5 months
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question
382
Not especially famous, long-open problems which anyone can understand
Jun 21, 2012
answer
147
Mathematical "urban legends"
Jan 25, 2011
question
97
Collecting proofs that finite multiplicative subgroups of fields are cyclic
Feb 8, 2011
question
85
Important open problems that have already been reduced to a finite but infeasible amount of computation
Nov 11, 2012
answer
75
Does a referee have to check carefully the proof ?
Dec 11, 2010
question
66
(Approximately) bijective proof of $\zeta(2)=\pi^2/6$?
May 2, 2012
answer
60
Not especially famous, long-open problems which anyone can understand
Jun 23, 2012
question
52
What are the external triumphs of matroid theory?
May 3, 2011
question
50
Does Godel's incompleteness theorem admit a converse?
Oct 22, 2011
question
49
If the Riemann Hypothesis fails, must it fail infinitely often?
Dec 22, 2010
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138
Reading the Feynman lectures in 2012
9
Levi-Civita connections from metrics on the orthogonal frame bundle
7
Computer-assisted proof for undergraduates