Weierstrass model Weierstrass model
$ y^{2} $ | $=$ | $ x^{3} - 18x + 27 $ |
This modular curve has 2 rational cusps but no known non-cuspidal rational points. The following are the coordinates of the rational cusps on this modular curve.
Maps to other modular curves
$j$-invariant map
of degree 72 from the Weierstrass model of this modular curve to the modular curve
$X(1)$
:
$\displaystyle j$ |
$=$ |
$\displaystyle \frac{1}{3}\cdot\frac{2124x^{2}y^{22}+16840699956x^{2}y^{20}z^{2}+27152850496500x^{2}y^{18}z^{4}+4184067310990092x^{2}y^{16}z^{6}-6338716520801433480x^{2}y^{14}z^{8}+5902929446452733733768x^{2}y^{12}z^{10}-2459861683611625501561368x^{2}y^{10}z^{12}+552612867744605808833469720x^{2}y^{8}z^{14}-70352172886997686613512936068x^{2}y^{6}z^{16}+5050264589191057777282039732740x^{2}y^{4}z^{18}-189903467028703978085561374478364x^{2}y^{2}z^{20}+2902468344472240638158596494588444x^{2}z^{22}+1536516xy^{22}z+287519331132xy^{20}z^{3}+152000584834860xy^{18}z^{5}-15408383957602092xy^{16}z^{7}+73569220381536514920xy^{14}z^{9}-52149166424015604294888xy^{12}z^{11}+18463433147907951774603672xy^{10}z^{13}-3658734116744574876908048280xy^{8}z^{15}+421097904623456199132174144468xy^{6}z^{17}-27829881082219617421927347690900xy^{4}z^{19}+976899768701435208860343633776124xy^{2}z^{21}-14088877297880289603067667547484668xz^{23}+y^{24}+401268708y^{22}z^{2}+2895521149242y^{20}z^{4}+649945001634660y^{18}z^{6}+507788953139421783y^{16}z^{8}-645757418560642585848y^{14}z^{10}+333407415987497442773196y^{12}z^{12}-90079143378492551218466904y^{10}z^{14}+13783001579312442126384540735y^{8}z^{16}-1221546769790968990315098411372y^{6}z^{18}+61323110409633713297849912618394y^{4}z^{20}-1591116188285205046301462727052428y^{2}z^{22}+16144416793390703215870269488157129z^{24}}{y^{2}(x^{2}y^{20}-186246x^{2}y^{18}z^{2}+1212674733x^{2}y^{16}z^{4}-1338840179424x^{2}y^{14}z^{6}+412279697216826x^{2}y^{12}z^{8}-43439632012170108x^{2}y^{10}z^{10}+1426344620217056442x^{2}y^{8}z^{12}-5188335188688x^{2}y^{6}z^{14}+19487638017189x^{2}y^{4}z^{16}-76255974849870x^{2}y^{2}z^{18}+205891132094649x^{2}z^{20}-108xy^{20}z+4495095xy^{18}z^{3}-15307458165xy^{16}z^{5}+11303367668676xy^{14}z^{7}-2683712675488788xy^{12}z^{9}+237932735802890778xy^{10}z^{11}-6923624206843608030xy^{8}z^{13}-11924802651420xy^{6}z^{15}+47448162128808xy^{4}z^{17}-205891132094649xy^{2}z^{19}+617673396283947xz^{21}+5598y^{20}z^{2}-81133812y^{18}z^{4}+146204215191y^{16}z^{6}-64349740392696y^{14}z^{8}+9432565751237544y^{12}z^{10}-504446641446722832y^{10}z^{12}+7933775731789119858y^{8}z^{14}+67029943324824y^{6}z^{16}-238935387862926y^{4}z^{18}+823564528378596y^{2}z^{20}-1853020188851841z^{22})}$ |
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Cover information
Click on a modular curve in the diagram to see information about it.
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This modular curve minimally covers the modular curves listed below.
This modular curve is minimally covered by the modular curves in the database listed below.