A polynomial parametrization for the group of integer two-by-two matrices with determinant one is given, solving an old open problem of Skolem and Beurkers. It follows that, for many Diophantine ...
https://doi.org/10.4169/amer.math.monthly.119.07.573 https://www.jstor.org/stable/10.4169/amer.math.monthly.119.07.573 The Monthly publishes articles, as well as ...
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