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We prove two conjectures of Lee and Weintraub and one conjecture of Ibukiyama and Kaneko about character sums arising as fixed point contributions in the Atiyah–Singer holomorphic Lefshetz formula applied to finite group actions on the space of certain Siegel cusp forms.


This work was originally published in Number Theory, available at

© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license

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