let note f(x)=O(g(x)) this f(x)<MG(x) being M a constant then would it be true?..(adsbygoogle = window.adsbygoogle || []).push({});

If f(n)=o(n^u) then Sum(1<n<x)f(n)=O(n^u+1) adn Int(1,x)dnf(n)=O(n^u+1)

Another question let be a(n)n^-s and b(n)n^-s two Dirichlet series so a(n)<b(n) for each n then if b(n)n^-s converges for a number Re(a)>1/2lso the series a(n)n^-s converges for Re(a)>1/2

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# Questions in number theory

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