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Keywords:
Riemann Zeta; Dirichlet Beta; generalized Riemann hypothesis; series representations
Riemann Zeta; Dirichlet Beta; generalized Riemann hypothesis; series representations
Summary:
This paper treats about one of the most remarkable achievements by Riemann, that is the symmetric form of the functional equation for $\zeta (s)$. We present here, after showing the first proof of Riemann, a new, simple and direct proof of the symmetric form of the functional equation for both the Eulerian Zeta function and the alternating Zeta function, connected with odd numbers. A proof that Euler himself could have arranged with a little step at the end of his paper “Remarques sur un beau rapport entre les séries des puissances tant direct que réciproches”. This more general functional equation gives origin to a special function,here named $(s)$ which we prove that it can be continued analytically to an entire function over the whole complex plane using techniques similar to those of the second proof of Riemann. Moreover we are able to obtain a connection between Jacobi’s imaginary transformation and an infinite series identity of Ramanujan. Finally, after studying the analytical properties of the function $(s)$, we complete and extend the proof of a Fundamental Theorem, both on the zeros of Riemann Zeta function and on the zeros of Dirichlet Beta function, using also the Euler–Boole summation formula.
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