Abstract
We study the rational points on $X_0^+(p) = X_0(p) / W_p$. It is known that there are rational points corresponding to cusps and elliptic curves with complex multiplication (CM). We use computational methods to exhibit exceptional rational points on $X_0^+(p)$ for p = 73, 103, 137, 191 and 311. We also provide the j-invariants of the corresponding non-CM quadratic $\funnyQ$-curves.
Citation
Steven D. Galbraith. "Rational points on {$X\sb 0\sp +(p)$}." Experiment. Math. 8 (4) 311 - 318, 1999.
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