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3h
revised What is the probability that two random permutations have the same order?
fixed typo
8h
answered What is the probability that two random permutations have the same order?
21h
awarded  Nice Answer
1d
comment Most discriminants are almost squarefree
Why is it true that "The proportion of polynomials in $\mathbb{Z}_p[x]\dots$ is $O(p^{-2}?$"
1d
comment Ramanujan graphs and stable real polynomials
Which paper? Please give a reference.
2d
awarded  Popular Question
Feb
2
comment Hyperbolic 3-manifold groups acting on the plane
@EricS. See my answer. This is all that is known.
Feb
2
answered Hyperbolic 3-manifold groups acting on the plane
Jan
30
comment Lattice points near a curve
@FanZheng There are more symbols than words there :) And yes, the paper is about smooth curves.
Jan
30
awarded  convex-polytopes
Jan
29
answered Lattice points near a curve
Jan
28
answered Proofs of Fermat-Wiles theorem for exponent 3
Jan
28
comment Spectrum of Laplacian matrix of an infinite tree graph
@NateEldredge If you read the OP's question, that is NOT what he is asking (although it is true that there is continuous spectrum in the interval - I think this is not so difficult to check by looking at eigenfunctions decaying exponentially radially from the root). And if by "deduce", you mean "subtract from $4$" yes, correct.
Jan
28
comment Derivative of eigenvectors of a matrix with respect to its components
This is definitely in Kato's book.
Jan
28
answered Spectrum of Laplacian matrix of an infinite tree graph
Jan
26
comment Fast Symbolic Linear Algebra CAS?
If you described your problem, perhaps something useful could be said, otherwise, your question is too general.
Jan
26
answered Closed formula for the generating function of the sequence of powers
Jan
25
answered Is there a limit definition for the roots of a polynomial with arbitrary degree?
Jan
23
answered Question related to Fermat curve: Does the equation $A x^n + By^n = C z^n$ have any solution in $\mathbb{N}$?
Jan
23
answered Sample integer points of cross-polytope uniformly