Abstract
Extending the discussion in the previous note [6] of this series, the group $\mathrm{PSL}_2(\mathbf{C})$ will be dealt with in place of $\mathrm{PSL}_2(\mathbf{R})$. We shall indicate that the functional structure that supports the spectral theory of Kloosterman sums in the complex case is essentially the same as in the real case, though it is more involved as can be expected.
Citation
Roelof Wichert Bruggeman. Yoichi Motohashi. "A note on the mean value of the zeta and $L$-functions. XIII." Proc. Japan Acad. Ser. A Math. Sci. 78 (6) 87 - 91, June 2002. https://doi.org/10.3792/pjaa.78.87
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