Properties

Label 40.24.1.di.1
Level $40$
Index $24$
Genus $1$
Analytic rank $1$
Cusps $4$
$\Q$-cusps $0$

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Invariants

Level: $40$ $\SL_2$-level: $8$ Newform level: $800$
Index: $24$ $\PSL_2$-index:$24$
Genus: $1 = 1 + \frac{ 24 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$
Cusps: $4$ (none of which are rational) Cusp widths $4^{2}\cdot8^{2}$ Cusp orbits $2^{2}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: $1$
$\Q$-gonality: $2$
$\overline{\Q}$-gonality: $2$
Rational cusps: $0$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 8C1
Rouse, Sutherland, and Zureick-Brown (RSZB) label: 40.24.1.6

Level structure

$\GL_2(\Z/40\Z)$-generators: $\begin{bmatrix}5&24\\12&29\end{bmatrix}$, $\begin{bmatrix}7&21\\28&33\end{bmatrix}$, $\begin{bmatrix}9&28\\24&29\end{bmatrix}$, $\begin{bmatrix}37&37\\6&15\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: none in database
Cyclic 40-isogeny field degree: $24$
Cyclic 40-torsion field degree: $384$
Full 40-torsion field degree: $30720$

Jacobian

Conductor: $2^{5}\cdot5^{2}$
Simple: yes
Squarefree: yes
Decomposition: $1$
Newforms: 800.2.a.d

Models

Weierstrass model Weierstrass model

$ y^{2} $ $=$ $ x^{3} - 275x - 1750 $
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Rational points

This modular curve has infinitely many rational points, including 1 stored non-cuspidal point.

Maps to other modular curves

$j$-invariant map of degree 24 from the Weierstrass model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle \frac{2^2}{5^4}\cdot\frac{41950818x^{2}y^{14}+237864888x^{2}y^{13}z-5297015889881x^{2}y^{12}z^{2}-1895175016704000x^{2}y^{11}z^{3}-479871677208024500x^{2}y^{10}z^{4}-96331475372767162500x^{2}y^{9}z^{5}-14446701465618288468750x^{2}y^{8}z^{6}-1670374972474209168750000x^{2}y^{7}z^{7}-158154962953093653683593750x^{2}y^{6}z^{8}-12345260334067283586328125000x^{2}y^{5}z^{9}-772360678102218118439941406250x^{2}y^{4}z^{10}-38561387551347361307739257812500x^{2}y^{3}z^{11}-1521045448475040077454162597656250x^{2}y^{2}z^{12}-41766100943016276081106567382812500x^{2}yz^{13}-558460284039889166572483062744140625x^{2}z^{14}-2792556xy^{15}+889333515xy^{14}z-72924634164xy^{13}z^{2}-252282358155370xy^{12}z^{3}-86323842058134000xy^{11}z^{4}-18342741401850276875xy^{10}z^{5}-3074778597567951187500xy^{9}z^{6}-410751824656488531718750xy^{8}z^{7}-43631131768587176554687500xy^{7}z^{8}-3816950506776181127275390625xy^{6}z^{9}-278814569834292428170898437500xy^{5}z^{10}-16572703361148669732934570312500xy^{4}z^{11}-788818087501518470166870117187500xy^{3}z^{12}-29793584199813223008357696533203125xy^{2}z^{13}-799492368725661887188934326171875000xyz^{14}-10690122497558871934275169372558593750xz^{15}+59319y^{16}-227543148y^{15}z-84308413672y^{14}z^{2}-27970145103480y^{13}z^{3}-11064573850320650y^{12}z^{4}-2890731723888255000y^{11}z^{5}-501481384910629081250y^{10}z^{6}-66477193482125762812500y^{9}z^{7}-7243668066812679616406250y^{8}z^{8}-645336798614118740976562500y^{7}z^{9}-46785013971607409983203125000y^{6}z^{10}-2817172955684498461479492187500y^{5}z^{11}-139887213944635044242303466796875y^{4}z^{12}-5465228125268469546260375976562500y^{3}z^{13}-164994624480182035187535095214843750y^{2}z^{14}-3818313592954984605806350708007812500yz^{15}-51055196571599799149815464019775390625z^{16}}{148x^{2}y^{14}+13344365x^{2}y^{12}z^{2}-140883235592x^{2}y^{10}z^{4}-1216803079551800x^{2}y^{8}z^{6}+16962973583777825000x^{2}y^{6}z^{8}-21488293903263275390625x^{2}y^{4}z^{10}-280750423557606870312500000x^{2}y^{2}z^{12}+802583367157625984185791015625x^{2}z^{14}+10578xy^{14}z+275517156xy^{12}z^{3}-5023329818544xy^{10}z^{5}-6972679564186500xy^{8}z^{7}+339601281840905343750xy^{6}z^{9}-834239755870712421875000xy^{4}z^{11}-4400465785768203929443359375xy^{2}z^{13}+15363159663481860158142089843750xz^{15}+y^{16}+448636y^{14}z^{2}-600802582y^{12}z^{4}-92755594497780y^{10}z^{6}+589741599142245625y^{8}z^{8}+1508053850098507187500y^{6}z^{10}-16973918068398848593750000y^{4}z^{12}+11610691684896254956054687500y^{2}z^{14}+73373259919056062767486572265625z^{16}}$

Modular covers

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Cover information

Click on a modular curve in the diagram to see information about it.

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
4.12.0.e.1 $4$ $2$ $2$ $0$ $0$ full Jacobian
40.12.0.br.1 $40$ $2$ $2$ $0$ $0$ full Jacobian
40.12.1.h.1 $40$ $2$ $2$ $1$ $1$ dimension zero

This modular curve is minimally covered by the modular curves in the database listed below.

Covering curve Level Index Degree Genus Rank Kernel decomposition
40.48.1.b.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.48.1.cn.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.48.1.dk.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.48.1.ds.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.48.1.ia.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.48.1.ik.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.48.1.iw.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.48.1.jk.1 $40$ $2$ $2$ $1$ $1$ dimension zero
40.120.9.du.1 $40$ $5$ $5$ $9$ $3$ $1^{6}\cdot2$
40.144.9.hy.1 $40$ $6$ $6$ $9$ $2$ $1^{6}\cdot2$
40.240.17.tk.1 $40$ $10$ $10$ $17$ $5$ $1^{12}\cdot2^{2}$
120.48.1.bcm.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.48.1.bcu.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.48.1.bei.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.48.1.beq.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.48.1.cgu.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.48.1.cha.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.48.1.chy.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.48.1.cii.1 $120$ $2$ $2$ $1$ $?$ dimension zero
120.72.5.bpa.1 $120$ $3$ $3$ $5$ $?$ not computed
120.96.5.py.1 $120$ $4$ $4$ $5$ $?$ not computed
280.48.1.bem.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.48.1.beq.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.48.1.bfc.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.48.1.bfg.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.48.1.boi.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.48.1.bom.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.48.1.boy.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.48.1.bpc.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.192.13.ik.1 $280$ $8$ $8$ $13$ $?$ not computed