A few equalities involving integrals of the logarithm of the Riemann   Zeta-function and equivalent to the Riemann hypothesis
  Using a generalized Littlewood theorem concerning integrals of the logarithm of analytical functions, we have established a few equalities involving integrals of the logarithm of the Riemann Zeta-function and have rigorously proven that they are equivalent to the Riemann hypothesis. Separate consideration for imaginary and real parts of these equalities, which deal correspondingly with the integrals of the logarithm of the module of the Riemann function and with the integrals of its argument is given. Preliminary results of the numerical research performed using these equalities to test the Riemann hypothesis are presented. 
Sergey K. Sekatskii, Stefano Beltraminelli, and Danilo Merlini