Abstract
The representation of integral binary forms as sums of two squares is discussed and applied to establish the Manin conjecture for certain Châtelet surfaces over ℚ.
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de la Bretèche, R., Browning, T.D. Binary forms as sums of two squares and Châtelet surfaces. Isr. J. Math. 191, 973–1012 (2012). https://doi.org/10.1007/s11856-012-0019-y
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DOI: https://doi.org/10.1007/s11856-012-0019-y