Mathematics
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ZFR
  • Member for 8 years, 4 months
  • Last seen more than a month ago
  • New York, NY, USA
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I am a PhD student in math in one of the US universities and I am deeply interested in Additive Combinatorics, classical Fourier Analysis and Mathematical Analysis.

I am also very grateful to all users who always support and help me.

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User activity after recent updates [duplicate]
Sep 8, 2021
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21
Sum of series $\sum \limits_{k=1}^{\infty}\frac{\sin^3 3^k}{3^k}$
18
Infinite group has infinitely many subgroups, namely cyclic subgroups.
17
Erroneous proof that derivative of function is always continuous
16
$A+B+C+7$ is perfect square where $A,B,C$ numbers with repeating digits.
15
A finite set is closed

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