I'm a Ph.D. student, working on limit theorems of probability theory.

  1. When I edit a post, I suggest the owner to check whether I didn't change the meaning.

  2. The less detailed is the OP (attempts, etc...), the less my answer will be.

My activity on math.stackexchange consists in:


This paragraph is for my personal use but freely available:

Welcome to Math.SE! Please, consider updating your question to include what you have tried and where you are getting stuck. That way, people on this site will know exactly what help you need.

9m
reviewed No Action Needed Can I solve an Euler differential equation by using the Frobenius method?
9m
reviewed Approve suggested edit on How come that (cos2x + 1) = (2 cos^2 x – 1 + 1)?
9m
reviewed Close Simplifying a summation series
9m
reviewed Leave Open Reciprocal of 81 being the sequence of all natural numbers?
9m
reviewed Close Precalculus word problem
31m
reviewed Close Sketch the region in the second quadrant bounded by the circle x^2+y^2=9 and the coordinate axes. Find the integral of area of the region?
31m
reviewed Close Find the volume of the lower surface of the solid $z=r^2+r\cos^2 \theta$ and the second quadrant bounded by the circle $x^2+y^2=9$?
31m
reviewed Close Why is (2 sin 5x cos 5x) (2 sin x cos x) = sin 10x sin 2x?
31m
reviewed Close How can I find $\int_0^\pi\sqrt{5-4\cos(t)}\ dt$?
31m
reviewed No Action Needed Can anyone find the summation for this?
31m
reviewed Reviewed An abstract a priori estimate in finite element method
3h
reviewed Leave Open Sum of a geometric series whose common ratio might be 1
3h
reviewed Looks Good How to find area of triangle from its medians
3h
reviewed Looks Good "Proof" that $1-1+1-1+\cdots=\frac{1}{2}$ and related conclusion that $\zeta(2)=\frac{\pi^2}{6}.$
3h
reviewed Close If $|f(x)|<x^2$ for $|x|<1$, then show that $f'(x) $ exists and find it
3h
reviewed No Action Needed Resolving branch cut away from branch point
3h
reviewed Leave Closed Simple sequence
3h
reviewed Leave Closed Sum of alternating series
15h
reviewed No Action Needed Prove tautology without truth table
15h
reviewed Looks Good Find angle $\alpha$ from a complex vector
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