Luis H Gallardo

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Name Luis H Gallardo
Member for 2 years
Seen May 18 at 22:55
Website
Location Brest, France
Age
45

Questions
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Perfect numbers $n$ such that $2^k(n+1)$ is also perfect

may 9 11 at 0:34 Luis H Gallardo 1,253●3●7

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423
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Positive integers $n$ that divide $\sigma_2(n)$

jan 12 11 at 7:21 Wadim Zudilin 8,674●1●24●59

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756
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Irreducibility of some trinomials modulo $p$

may 24 11 at 22:59 Luis H Gallardo 1,253●3●7

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922
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Even Perfect numbers $n$ with $n+1$ prime

nov 9 11 at 16:21 joro 4,270●1●10●31

 
3
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483
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Reducible trinomials $x^{odd}+x^2+s(t)$ in characteristic $2$

nov 23 at 10:08 Peter Mueller 3,780●1●9●18

 
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251
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Can two Consecutive Polynomials both be perfect ?

jan 20 11 at 17:02 Deleted 1●1

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Eigenvectors of the Fourier matrix

nov 11 at 10:30 Alexey Ustinov 1,356●4●13

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