Invariants
Level: | $56$ | $\SL_2$-level: | $8$ | Newform level: | $3136$ | ||
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: | 8B1 |
Rouse, Sutherland, and Zureick-Brown (RSZB) label: | 56.24.1.63 |
Level structure
$\GL_2(\Z/56\Z)$-generators: | $\begin{bmatrix}9&8\\12&15\end{bmatrix}$, $\begin{bmatrix}23&42\\22&19\end{bmatrix}$, $\begin{bmatrix}36&51\\41&16\end{bmatrix}$, $\begin{bmatrix}50&13\\29&42\end{bmatrix}$ |
Contains $-I$: | yes |
Quadratic refinements: | none in database |
Cyclic 56-isogeny field degree: | $32$ |
Cyclic 56-torsion field degree: | $768$ |
Full 56-torsion field degree: | $129024$ |
Jacobian
Conductor: | $2^{6}\cdot7^{2}$ |
Simple: | yes |
Squarefree: | yes |
Decomposition: | $1$ |
Newforms: | 3136.2.a.m |
Models
Weierstrass model Weierstrass model
$ y^{2} $ | $=$ | $ x^{3} + 49x $ |
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{2^6}{7^4}\cdot\frac{632745313200x^{2}y^{14}+172462181984064x^{2}y^{13}z-3969576736755642x^{2}y^{12}z^{2}-530784602100006912x^{2}y^{11}z^{3}+20149798431645870624x^{2}y^{10}z^{4}+154388733303546457632x^{2}y^{9}z^{5}-23232071252673648782193x^{2}y^{8}z^{6}+276838713422357823571968x^{2}y^{7}z^{7}+4086941002054009916454288x^{2}y^{6}z^{8}-103970982456774842504340672x^{2}y^{5}z^{9}+1609813481002226284562552075x^{2}y^{4}z^{10}-2267258360432973407689265664x^{2}y^{3}z^{11}-180636593507196269376211321680x^{2}y^{2}z^{12}+1456357360200482410339328906400x^{2}yz^{13}-3254665337392327171898998447125x^{2}z^{14}+45541980000xy^{15}+36958123540772xy^{14}z+685723085873664xy^{13}z^{2}-188137160368426080xy^{12}z^{3}+2811976110208472256xy^{11}z^{4}+222144130351333763685xy^{10}z^{5}-7991747764289570760192xy^{9}z^{6}+1914864313389920784864xy^{8}z^{7}+2909918649557823288656544xy^{7}z^{8}-88572057748174707264801712xy^{6}z^{9}+144379661814555098566430208xy^{5}z^{10}+14850984273243469532553743280xy^{4}z^{11}-134154990995500279702288591200xy^{3}z^{12}+332915190774221102727992326875xy^{2}z^{13}+1684546875y^{16}+5756009796096y^{15}z+562795829076096y^{14}z^{2}-35630658141462720y^{13}z^{3}-813918043966585908y^{12}z^{4}+75825332429285698560y^{11}z^{5}-619993159969543497648y^{10}z^{6}-28917878074657097672160y^{9}z^{7}+1201417258644319998735636y^{8}z^{8}-2673949492034390248573440y^{7}z^{9}-217482738332783378647114944y^{6}z^{10}+2003731841624202990607364064y^{5}z^{11}-4188469954387999552968522778y^{4}z^{12}-9373164621668477280157807104y^{3}z^{13}+50488182529420309984823713200y^{2}z^{14}-178060991998145470067797020000yz^{15}+322727564630785089109159546875z^{16}}{659016x^{2}y^{14}+4015992302x^{2}y^{12}z^{2}+28566266294448x^{2}y^{10}z^{4}+37160271557734787x^{2}y^{8}z^{6}-18117389721431437416x^{2}y^{6}z^{8}-17798586158388501810225x^{2}y^{4}z^{10}+452834416098315937408968x^{2}y^{2}z^{12}+287095206070427670350748495x^{2}z^{14}-24324300xy^{14}z-147408983568xy^{12}z^{3}-203473350111679xy^{10}z^{5}+354641572173300048xy^{8}z^{7}+390996083417563815408xy^{6}z^{9}-36856569618674714027448xy^{4}z^{11}-29298570293215038156352641xy^{2}z^{13}-6561y^{16}+317693376y^{14}z^{2}+314530094620y^{12}z^{4}-3072034038684744y^{10}z^{6}-3628427171092500028y^{8}z^{8}+570651512210586634464y^{6}z^{10}+477462985667142095725902y^{4}z^{12}+52584380166387070451016y^{2}z^{14}-1256964459087896244884961z^{16}}$ |
Modular covers
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.
Covered curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
---|---|---|---|---|---|---|
8.12.0.l.1 | $8$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
56.12.0.bw.1 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
56.12.1.c.1 | $56$ | $2$ | $2$ | $1$ | $1$ | 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 |
---|---|---|---|---|---|---|
56.48.1.cz.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.da.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.dq.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.dr.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.eg.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.eh.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.eq.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.er.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.192.13.bj.1 | $56$ | $8$ | $8$ | $13$ | $7$ | $1^{8}\cdot2^{2}$ |
56.504.37.cf.1 | $56$ | $21$ | $21$ | $37$ | $18$ | $1^{4}\cdot2^{14}\cdot4$ |
56.672.49.cf.1 | $56$ | $28$ | $28$ | $49$ | $24$ | $1^{12}\cdot2^{16}\cdot4$ |
168.48.1.jo.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.48.1.jp.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.48.1.ls.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.48.1.lt.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.48.1.my.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.48.1.mz.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.48.1.oi.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.48.1.oj.1 | $168$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
168.72.5.ce.1 | $168$ | $3$ | $3$ | $5$ | $?$ | not computed |
168.96.5.bx.1 | $168$ | $4$ | $4$ | $5$ | $?$ | not computed |
280.48.1.jc.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.48.1.jd.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.48.1.ku.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.48.1.kv.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.48.1.ma.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.48.1.mb.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.48.1.nk.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.48.1.nl.1 | $280$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
280.120.9.bc.1 | $280$ | $5$ | $5$ | $9$ | $?$ | not computed |
280.144.9.by.1 | $280$ | $6$ | $6$ | $9$ | $?$ | not computed |
280.240.17.ts.1 | $280$ | $10$ | $10$ | $17$ | $?$ | not computed |