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Jun
9
comment Can a monotone decreasing function intersect $y=-x$ on a set of more than measure $0$?
@DanielFischer but doesnt the cantor set have measure 0?
Jun
9
comment Can a monotone decreasing function intersect $y=-x$ on a set of more than measure $0$?
@DanielFischer urgh... Thanks
Jun
9
comment Lagrangian multiplier vectorial form
$h(x)$ is vector, if that helps...
Jun
9
asked Can a monotone decreasing function intersect $y=-x$ on a set of more than measure $0$?
Jun
2
awarded  Revival
Jun
1
comment Regularity of PDE with respect to coefficients?
@HomegrownTomato do you know if it is a problem if the boundary condition also depends on sigma. (and the notes looks dense! I think it will serve as a good starting point to find something which assumes less)
May
31
comment Regularity of PDE with respect to coefficients?
@Ian do you have anything to suggest which may help me to answer prove what i said is true in the example i gave?
May
31
comment Regularity of PDE with respect to coefficients?
In the cases I am interested in, there should be no qualitative change.
May
31
comment Regularity of PDE with respect to coefficients?
@Ian care to elaborate a little please?
May
31
asked Regularity of PDE with respect to coefficients?
May
21
comment $x^TAx=0$ for all $x$ when $A$ is a skew symmetric matrix
@Mollart yes, or, just think about it this way: how can a = -a?
May
4
awarded  Steward
May
4
revised Does $0$ correlation imply independence for marginally normal distributions?
rolled back to a previous revision
May
4
reviewed Close How do we get $S(m) = S(m/2) + \lg m$ from $T(n) = T(\sqrt{n}) + \lg\lg n$?
May
4
reviewed Leave Open Local informatics Olympiad and Algorithm
May
4
reviewed Close All entire functions which satisfying : $f(2z)=f(z)^{2}$
May
4
reviewed Close Compute $\frac{1}{e}\sum\limits_{n=0}^{\infty}\frac{n^{k}}{n!}$ for $k=0, 1, 2 … $
May
4
reviewed Leave Open How to find this integral from Gaussian integral?
May
4
reviewed Close Find all functions $f: \mathbb{Z} \to \mathbb{Z} $ such that for all $x,y, \in \mathbb{Z}$, $f(x-y+f(y))=f(x)+f(y)$.
May
4
reviewed Close An isometry of Hilbert spaces using the Radon-Nikodym derivative