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1h
reviewed Close First order vs second order Markov Chain?
13h
reviewed Leave Open Raising coefficients of a power series to some power
14h
reviewed Close What is this formula Name? Can anybody teach me guide me to understand this?
2d
reviewed No Action Needed Integer solution to the equation
2d
reviewed Leave Closed Maximality statements that cannot be proved using $\mathsf{ZL}$
2d
reviewed Leave Open “The Two Sheriffs” puzzle
2d
reviewed Leave Closed Are Modular Collatz Graphs strongly connected?
Apr
16
awarded  Nice Answer
Apr
16
reviewed Close Hiring pointers/communities for quantum mechanics and functional analysis
Apr
16
answered Is $\sum_{k=1}^{n} \sin(k^2)$ bounded by a constant $M$?
Apr
15
comment When has the Borel-Cantelli heuristic been wrong?
How about the Maier phenomenon that occasionally there are intervals around $x$ of length $(\log x)^{100}$ say with substantially more (or fewer) primes than one would expect?
Apr
15
awarded  Good Answer
Apr
15
reviewed No Action Needed Existence of an invariant measure on an infinite dimensional space via Lyapunov functional
Apr
15
awarded  Enlightened
Apr
14
comment distribution of $\sqrt{-1} \mod p$
Hooley proved the equidistribution of roots $\mod d$ for composite $d$. That is a much easier problem than the one resolved by Duke, Friedlander and Iwaniec.
Apr
14
awarded  Nice Answer
Apr
14
comment distribution of $\sqrt{-1} \mod p$
I think they want the determinant to be positive; ie the quadratic polynomial has complex roots as in $x^2+1$. Also I don't see how uniform distribution of the angle helps, since we need the distribution of $ab^{-1} \pmod p$.
Apr
14
reviewed Close Is there a closed form for tan(q*pi) with q rational?
Apr
14
answered distribution of $\sqrt{-1} \mod p$
Apr
14
reviewed Close Zeros of Polynomial with decreasing coefficients