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The
Authors:Pierre Dusart.
Affiliation:LACO, ESA 6090, Faculté des Sciences, 123 avenue Albert Thomas, 87060 Limoges Cedex, FRANCE
Abstract:ROSSER and SCHOENFELD have used the fact that the first 3,500,000 zeros of the RIEMANN zeta function lie on the critical line to give estimates on $psi(x)$ and $theta(x)$. With an improvement of the above result by BRENTet al., we are able to improve these estimates and to show that the $k^{th}$ prime is greater than $k(ln k +lnln k -1)$ for $kgeq 2$. We give further results without proof.

Keywords:Distribution of primes   arithmetic functions
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