Research note on a well posed integral used in Aperys proof for the irrationality of Z(3)

In this note we evaluate multiple integrals that play a crucial role in the theory of irrationality of zeta function

💡 Research Summary

The paper revisits the triple integral that lies at the heart of Apéry’s 1978 proof of the irrationality of ζ(3). The author begins by recalling Apéry’s linear forms (A_n\zeta(3)-B_n) and the classical Beukers‑type integral representation
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