Mathematics
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Elaqqad's user avatar
Elaqqad's user avatar
Elaqqad
  • Member for 8 years, 11 months
  • Last seen more than a month ago
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answers
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About

I'm currently an undergraduate student in computer science, and especially in theoretical computer science. I like solving and making hard problems in number theory, arithmetic, Combinatorics, Olympiads... . I'm here to help others and to share my ideas with them.

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228
Score
104
Posts
23
Posts %
211
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108
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24
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97
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40
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9
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80
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11
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70
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All Questions Answers
Score Newest
answer
24
What is wrong with this putative proof?
Apr 2, 2015
answer
17
How to prove that the Fibonacci sequence is periodic mod 5 without using induction?
Jul 12, 2015
question
16
Improvement IMO 1988 $f(f(n))=n+1987$
Jan 28, 2015
answer
16
Is this extension of Goldbach's conjecture obviously false?
Jul 9, 2015
question
15
when $F_n^2+F_m^2$ is a square for fibonacci numbers
Feb 15, 2015
answer
14
Can every even integer greater than four be written as a sum of two twin primes?
Mar 8, 2015
answer
14
Elementary proof for $\sqrt{p_{n+1}} \notin \mathbb{Q}(\sqrt{p_1}, \sqrt{p_2}, \ldots, \sqrt{p_n})$ where $p_i$ are different prime numbers.
Apr 11, 2015
question
13
Looking for all sequences such that $a_i^2+a_j^2=a_k^2+a_l^2$ whenever $i^2+j^2=k^2+l^2$
Feb 24, 2015
answer
12
Show that for any prime $ p $, there are integers $ x $ and $ y $ such that $ p|(x^{2} + y^{2} + 1) $.
May 1, 2015
question
11
Arrangement of integers in a row such that the sum of every two adjacent numbers is a perfect square.
Feb 28, 2015
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11
Integers $d$ for which the negative Pell equation is soluble for both $d$ and $2d$?
9
How to implement the five star notation in Latex

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