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Mathematics
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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.

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  • New York, NY, USA
  • Member for 5 years, 1 month
  • 2,029 profile views
  • Last seen 4 hours ago

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Top Posts (592) 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 $A+B+C+7$ is perfect square where $A,B,C$ numbers with repeating digits. Oct 29 '15
14 Number which is simultaneously sum of 2 and 3 squares [closed] Nov 25 '17
12 Solve an equation of 4th degree Apr 19 '16
11 Infinite group has infinitely many subgroups, namely cyclic subgroups. Nov 30 '17
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
8 Definition of isomorphism from Herstein's book Dec 23 '17
8 Problem 30 from Shakarchi Stein's book Sep 28 '18
7 Every separable metric space has a countable base Jun 3 '16
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