An Elementary Proof to eγ log log n > Ψ(n)/n for any n > 30
Abstract Let Ƥ be the set of all primes, Ψ/(n) = nIIn∈Ƥ,p|n (1 + 1/Ƥ) be the Dedekind psi function, we unconditionally show that eγ log log n > Ψ(n)/n for any n > 30, where γ if Euler's constant.
2014 ◽
Vol 243
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pp. 24-32
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1999 ◽
Vol 106
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pp. 452-454
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2008 ◽
Vol 219
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pp. 484-492
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