Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

  7. current community

    your communities

    more stack exchange communities

    company blog
Mathematics
Meta User
Network Profile
5,001
reputation
3
13
39

ZFR

I am math graduate student in one of the U.S. universities and I am deeply interested in Number theory, Additive combinatorics, Ramsey theory, Polynomial Method, Group and Ring theory, Finite Fields, Real and Fourier analysis, Measure Theory.

65
answers
491
questions
~100k
people reached
  • New York, NY, USA
  • Member for 4 years, 11 months
  • 1,927 profile views
  • Last seen Jan 16 at 14:16

Communities (2)

Top Network Posts

We respect a laser-like focus on one topic.

Top Tags (120)

Score 20
Posts 22
Posts % 4
Score 19
Posts 236
Score 11
Posts 77
Score 3
Posts 61
Score 3
Posts 49
Score 2
Posts 96
View all tags →

Top Posts (556) All Questions Answers | Votes Newest

17 Sum of series $\sum \limits_{k=1}^{\infty}\frac{\sin^3 3^k}{3^k}$ Jan 23 '17
14 Number which is simultaneously sum of 2 and 3 squares [closed] Nov 25 '17
14 $A+B+C+7$ is perfect square where $A,B,C$ numbers with repeating digits. Oct 29 '15
12 Solve an equation of 4th degree Apr 19 '16
10 If $\lim_{x \to \infty} (f(x)-g(x)) = 0$ then $\lim_{x \to \infty} (f^2(x)-g^2(x)) = 0\ $: False? Nov 12 '15
10 Looking for a non-combinatorial proof that $a! \cdot b! \mid (a+b)!$ Feb 2 '16
10 Infinite group has infinitely many subgroups, namely cyclic subgroups. Nov 30 '17
7 Definition of isomorphism from Herstein's book Dec 23 '17
6 Coloring of $\mathbb{R}^3$ into 3 colors Nov 17 '17
6 Problem 30 from Shakarchi Stein's book Sep 28 '18
View all questions and answers →

Badges (55)

Gold

3

Rarest

Silver

13

Rarest

Bronze

39

Rarest

View all badges →