## Appendix to a paper [arXiv:1809.08623] of B. Williams. (arXiv:1810.06792v1 [math.NT])

In this appendix to a paper [arXiv:1809.08623] by B. Williams, we give birational equivalences between the models of the Hilbert modular surfaces for ${\mathbb Q}(\sqrt{29})$ and ${\mathbb Q}(\sqrt{37})$ given there and those previously found by Elkies and Kumar. 查看全文>>

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