The rationally 3-isogenous partner of the Burkhardt-quartic Mordell curve obtained from parameters (u,v,w)=(-9/4,1/2,-3/2) and t=-617/824. Eleven rational points were reconstructed through the explicit 3-isogeny and transformed onto the minimal model. Their coordinates were verified using exact rational arithmetic, and PARI/GP 2.17.4 returned matching computational rank bounds [11,11].
jesper-petersen ·