The scattering matrix for the Hilbert modular group
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In this paper, we compute the scattering matrix for the Hilbert modular group over any number field K. We then compute the determinant of the scattering matrix and show it is a ratio of completed Dedekind zeta functions associated to the Hilbert class field of K. This generalizes work of Efrat and Sarnak in the imaginary quadratic case. 2009 American Mathematical Society.