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Top Questions
26
votes
Primitive roots
primitive-roots
nt.number-theory
asked Jan 28, 2011 at 1:22
mathoverflow.net
21
votes
Integer matrices with no integer eigenvalues
matrices
eigenvalues
semigroups
decidability
asked May 15, 2010 at 22:45
mathoverflow.net
19
votes
Is the semigroup of nonnegative integer matrices with determinant 1 finitely generated?
matrices
asked May 10, 2010 at 18:48
mathoverflow.net
15
votes
Is there a matrix C so that the trace of C^n is dense in R?
matrices
asked Feb 11, 2010 at 22:16
mathoverflow.net
11
votes
Symmetric functions on three parameters being perfect squares
nt.number-theory
diophantine-equations
k3-surfaces
asked Apr 17, 2012 at 17:56
mathoverflow.net
Top Answers
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