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A number field extension of Ramanujan's identity and its integral representation via the generalized Riemann ΞΞ-function

Diksha Rani Bansal

Source record

Source: arXiv

Published: Oct 15, 2026

arXiv: 2610.21800

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Source abstract

On pages 219--220 of Ramanujan's Lost Notebook appears an intriguing modular transformation whose integral representation is expressed in terms of the Riemann ΞΞ-function. In this paper, we establish a number field analogue of this identity. We also obtain an integral representation for the transformation formula associated with the functional equation of the higher power of the Dedekind zeta function recently studied by the present author and Maji. Interestingly, we recover Hardy's integral representation of the well-known Jacobi theta relation involving the Riemann ΞΞ-function. We further obtain a number-field analogue of the extended Ramanujan--Koshliakov formula established by Dixit.

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A number field extension of Ramanujan's identity and its integral representation via the generalized Riemann $Ξ$-function — Mathematical Frontier Network