Studies on Phenoxazine Related Compounds. VIII. On the Preparation of 3-Acryl-1, 2-dihydro-3H-pyrazino [3, 2, 1-kl] phenoxazine by Alumina-Columnchromatography of 3-(β-Bromopropionyl)-1, 2-dihydro-3H-pyrazino [3, 2, 1-kl] phenoxazine
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‎‎In the category of Mordell curves (E_D:y^2=x^3+D) with nontrivial torsion groups we find curves of the generic rank two as quadratic twists of (E_1), ‎and of the generic rank at least two and at least three as cubic twists of (E_1). ‎Previous work‎, ‎in the category of Mordell curves with trivial torsion groups‎, ‎has found infinitely many elliptic curves with ...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1972
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.92.6_775