Learn more

Refine search


Results (1-50 of 548 matches)

Next   displayed columns for results
Label Class Base field Conductor norm Rank Torsion CM Sato-Tate Regulator Period Leading coeff j-invariant Weierstrass coefficients Weierstrass equation
1.1-a1 1.1-a 3.3.1849.1 \( 1 \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1.945886264$ $366.1979107$ 3.107177984 \( 1849 \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 6\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 5\) , \( 392 a^{2} - 633 a - 5099\) , \( \frac{3859}{2} a^{2} - \frac{6233}{2} a - 25097\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-6\right){x}^{2}+\left(392a^{2}-633a-5099\right){x}+\frac{3859}{2}a^{2}-\frac{6233}{2}a-25097$
1.1-a2 1.1-a 3.3.1849.1 \( 1 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.972943132$ $183.0989553$ 3.107177984 \( -57005 a^{2} + 108767 a + 791289 \) \( \bigl[1\) , \( -a - 1\) , \( a\) , \( \frac{1529}{2} a^{2} - \frac{5257}{2} a - 3660\) , \( -\frac{7035}{2} a^{2} + \frac{38357}{2} a - 15043\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(-a-1\right){x}^{2}+\left(\frac{1529}{2}a^{2}-\frac{5257}{2}a-3660\right){x}-\frac{7035}{2}a^{2}+\frac{38357}{2}a-15043$
1.1-a3 1.1-a 3.3.1849.1 \( 1 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.972943132$ $183.0989553$ 3.107177984 \( 25881 a^{2} + 36367 a + 14191 \) \( \bigl[1\) , \( a + 1\) , \( a\) , \( -\frac{1}{2} a^{2} + \frac{7}{2} a + 3\) , \( \frac{3}{2} a^{2} - \frac{11}{2} a - 4\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-\frac{1}{2}a^{2}+\frac{7}{2}a+3\right){x}+\frac{3}{2}a^{2}-\frac{11}{2}a-4$
1.1-a4 1.1-a 3.3.1849.1 \( 1 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.972943132$ $183.0989553$ 3.107177984 \( 31124 a^{2} - 145134 a + 24009 \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} - \frac{1}{2} a + 6\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( \frac{5967405}{2} a^{2} + \frac{20905665}{2} a + 5300483\) , \( -3251744465 a^{2} - 11391861209 a - 5776633047\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}-\frac{1}{2}a+6\right){x}^{2}+\left(\frac{5967405}{2}a^{2}+\frac{20905665}{2}a+5300483\right){x}-3251744465a^{2}-11391861209a-5776633047$
4.1-a1 4.1-a 3.3.1849.1 \( 2^{2} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $55.24977118$ 3.854635199 \( \frac{439085}{4096} a^{2} + \frac{56367}{4096} a - \frac{2675777}{2048} \) \( \bigl[a + 1\) , \( -a + 1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( 13 a^{2} + 42 a + 22\) , \( -\frac{163}{2} a^{2} - \frac{577}{2} a - 150\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(13a^{2}+42a+22\right){x}-\frac{163}{2}a^{2}-\frac{577}{2}a-150$
4.1-b1 4.1-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.534631462$ $19.32963008$ 1.034785760 \( -\frac{977256054741}{128} a^{2} + \frac{1606594592603}{128} a + \frac{3198119075811}{32} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -\frac{13872525}{2} a^{2} - \frac{48599719}{2} a - 12322069\) , \( -43257956975 a^{2} - 151545930933 a - 76846550118\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}^{2}+\left(-\frac{13872525}{2}a^{2}-\frac{48599719}{2}a-12322069\right){x}-43257956975a^{2}-151545930933a-76846550118$
4.1-b2 4.1-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.767315731$ $77.31852034$ 1.034785760 \( -\frac{201179099}{8192} a^{2} + \frac{368532021}{8192} a + \frac{689338973}{2048} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -\frac{872185}{2} a^{2} - \frac{3055529}{2} a - 774699\) , \( -667920965 a^{2} - 2339932619 a - 1186542914\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}^{2}+\left(-\frac{872185}{2}a^{2}-\frac{3055529}{2}a-774699\right){x}-667920965a^{2}-2339932619a-1186542914$
4.1-b3 4.1-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.534631462$ $19.32963008$ 1.034785760 \( \frac{3592591109}{33554432} a^{2} - \frac{13336256747}{33554432} a - \frac{3195689923}{8388608} \) \( \bigl[1\) , \( -a + 1\) , \( 0\) , \( 90318539 a^{2} + 316413625 a + 160448357\) , \( -118907236571270 a^{2} - 416568629695857 a - 211235378469329\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(90318539a^{2}+316413625a+160448357\right){x}-118907236571270a^{2}-416568629695857a-211235378469329$
4.1-b4 4.1-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.383657865$ $154.6370406$ 1.034785760 \( \frac{1140777}{128} a^{2} - \frac{4414399}{128} a - \frac{731381}{32} \) \( \bigl[1\) , \( a + 1\) , \( 0\) , \( -41 a^{2} - 144 a - 73\) , \( 282 a^{2} + 988 a + 501\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-41a^{2}-144a-73\right){x}+282a^{2}+988a+501$
4.1-b5 4.1-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.767315731$ $38.65926017$ 1.034785760 \( \frac{21526677673}{16} a^{2} - \frac{83700805147}{16} a - 3726611683 \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 5\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( -42 a^{2} + 162 a + 123\) , \( -\frac{755}{2} a^{2} + \frac{2935}{2} a + 1045\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+5\right){x}^{2}+\left(-42a^{2}+162a+123\right){x}-\frac{755}{2}a^{2}+\frac{2935}{2}a+1045$
4.1-b6 4.1-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.191828932$ $154.6370406$ 1.034785760 \( \frac{27430541}{512} a^{2} + \frac{158243599}{512} a + \frac{114105151}{256} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 6\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 5\) , \( -\frac{3879932424665305}{2} a^{2} - \frac{13592596885275349}{2} a - 3446295691466837\) , \( 202229635727891203882007 a^{2} + 708472626799016062597209 a + 359255289017598093575882\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-5\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+6\right){x}^{2}+\left(-\frac{3879932424665305}{2}a^{2}-\frac{13592596885275349}{2}a-3446295691466837\right){x}+202229635727891203882007a^{2}+708472626799016062597209a+359255289017598093575882$
4.2-a1 4.2-a 3.3.1849.1 \( 2^{2} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $55.24977118$ 3.854635199 \( \frac{123863}{2048} a^{2} - \frac{405337}{1024} a - \frac{183907}{256} \) \( \bigl[\frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( a\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 4\) , \( \frac{61}{2} a^{2} - \frac{207}{2} a - 74\) , \( -\frac{467}{2} a^{2} + \frac{1893}{2} a + 674\bigr] \) ${y}^2+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-4\right){y}={x}^{3}+a{x}^{2}+\left(\frac{61}{2}a^{2}-\frac{207}{2}a-74\right){x}-\frac{467}{2}a^{2}+\frac{1893}{2}a+674$
4.2-b1 4.2-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.383657865$ $154.6370406$ 1.034785760 \( -\frac{1636811}{128} a^{2} + \frac{2628879}{128} a + \frac{10788367}{64} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{3}{2} a - 6\) , \( 1\) , \( -\frac{187}{2} a^{2} + \frac{725}{2} a + 265\) , \( 728 a^{2} - 2830 a - 2020\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{3}{2}a-6\right){x}^{2}+\left(-\frac{187}{2}a^{2}+\frac{725}{2}a+265\right){x}+728a^{2}-2830a-2020$
4.2-b2 4.2-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.767315731$ $38.65926017$ 1.034785760 \( -\frac{31087063737}{16} a^{2} + \frac{50207835865}{16} a + \frac{202168749849}{8} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} - \frac{1}{2} a + 4\) , \( 1\) , \( 1035 a^{2} - 3935 a - 2806\) , \( 38047 a^{2} - 148183 a - 105534\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(-\frac{1}{2}a^{2}-\frac{1}{2}a+4\right){x}^{2}+\left(1035a^{2}-3935a-2806\right){x}+38047a^{2}-148183a-105534$
4.2-b3 4.2-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.534631462$ $19.32963008$ 1.034785760 \( -\frac{4871832819}{33554432} a^{2} + \frac{7430316239}{33554432} a + \frac{31058906975}{16777216} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} - \frac{1}{2} a + 5\) , \( 0\) , \( -139377851988054126331856 a^{2} - 488283492971561316848717 a - 247600853942073873231157\) , \( -\frac{1073992586713366267174174192865201037}{2} a^{2} - \frac{3762526428595782931371840513849977487}{2} a - 953958888749691934481770602093876513\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(-\frac{1}{2}a^{2}-\frac{1}{2}a+5\right){x}^{2}+\left(-139377851988054126331856a^{2}-488283492971561316848717a-247600853942073873231157\right){x}-\frac{1073992586713366267174174192865201037}{2}a^{2}-\frac{3762526428595782931371840513849977487}{2}a-953958888749691934481770602093876513$
4.2-b4 4.2-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.534631462$ $19.32963008$ 1.034785760 \( \frac{314669268931}{128} a^{2} + \frac{1010504302689}{128} a + \frac{251280802193}{64} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 5\) , \( 0\) , \( -1172779547969 a^{2} - 4108607544166 a - 2083410049876\) , \( -\frac{6013628427348503335}{2} a^{2} - \frac{21067590381508211477}{2} a - 5341521312975315674\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+5\right){x}^{2}+\left(-1172779547969a^{2}-4108607544166a-2083410049876\right){x}-\frac{6013628427348503335}{2}a^{2}-\frac{21067590381508211477}{2}a-5341521312975315674$
4.2-b5 4.2-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.767315731$ $77.31852034$ 1.034785760 \( \frac{83676461}{8192} a^{2} + \frac{151328815}{8192} a + \frac{38076607}{4096} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 5\) , \( 0\) , \( -\frac{146715161753}{2} a^{2} - \frac{513988346287}{2} a - 130317689706\) , \( -46902274759853089 a^{2} - 164313097248878730 a - 83320578676737960\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+5\right){x}^{2}+\left(-\frac{146715161753}{2}a^{2}-\frac{513988346287}{2}a-130317689706\right){x}-46902274759853089a^{2}-164313097248878730a-83320578676737960$
4.2-b6 4.2-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.191828932$ $154.6370406$ 1.034785760 \( \frac{46418535}{256} a^{2} - \frac{83343073}{128} a - \frac{15011303}{32} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} - \frac{1}{2} a + 6\) , \( 1\) , \( -8365385 a^{2} + 32526591 a + 23170931\) , \( 38152217234 a^{2} - 148344824870 a - 105676176364\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(-\frac{1}{2}a^{2}-\frac{1}{2}a+6\right){x}^{2}+\left(-8365385a^{2}+32526591a+23170931\right){x}+38152217234a^{2}-148344824870a-105676176364$
4.3-a1 4.3-a 3.3.1849.1 \( 2^{2} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $55.24977118$ 3.854635199 \( -\frac{686811}{4096} a^{2} + \frac{1564981}{4096} a + \frac{1257309}{1024} \) \( \bigl[\frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( 1\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -41 a^{2} + 65 a + 532\) , \( \frac{533}{2} a^{2} - \frac{863}{2} a - 3471\bigr] \) ${y}^2+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+{x}^{2}+\left(-41a^{2}+65a+532\right){x}+\frac{533}{2}a^{2}-\frac{863}{2}a-3471$
4.3-b1 4.3-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.767315731$ $77.31852034$ 1.034785760 \( \frac{58751319}{4096} a^{2} - \frac{129965209}{2048} a - \frac{1693955}{512} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{3}{2} a - 6\) , \( a\) , \( -287 a^{2} + 1182 a + 497\) , \( -\frac{17957}{2} a^{2} + \frac{70559}{2} a + 23202\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{3}{2}a-6\right){x}^{2}+\left(-287a^{2}+1182a+497\right){x}-\frac{17957}{2}a^{2}+\frac{70559}{2}a+23202$
4.3-b2 4.3-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.534631462$ $19.32963008$ 1.034785760 \( \frac{331293392905}{64} a^{2} - \frac{654274723823}{32} a - \frac{103214999549}{8} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{3}{2} a - 6\) , \( a\) , \( -\frac{9169}{2} a^{2} + \frac{37799}{2} a + 7862\) , \( -559268 a^{2} + 2203613 a + 1418279\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{3}{2}a-6\right){x}^{2}+\left(-\frac{9169}{2}a^{2}+\frac{37799}{2}a+7862\right){x}-559268a^{2}+2203613a+1418279$
4.3-b3 4.3-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.191828932$ $154.6370406$ 1.034785760 \( -\frac{120267611}{512} a^{2} + \frac{175128693}{512} a + \frac{412582685}{128} \) \( \bigl[1\) , \( 0\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( -\frac{1}{2} a^{2} + \frac{1}{2} a + 2\) , \( -\frac{1}{2} a^{2} - \frac{7}{2} a - 5\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{1}{2}a+2\right){x}-\frac{1}{2}a^{2}-\frac{7}{2}a-5$
4.3-b4 4.3-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.767315731$ $38.65926017$ 1.034785760 \( 597524129 a^{2} + \frac{16746484641}{8} a + \frac{2122971727}{2} \) \( \bigl[1\) , \( a + 1\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -9633453847 a^{2} - 33748952410 a - 17113561190\) , \( -2238507311131931 a^{2} - 7842179753319479 a - 3976645599613254\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-9633453847a^{2}-33748952410a-17113561190\right){x}-2238507311131931a^{2}-7842179753319479a-3976645599613254$
4.3-b5 4.3-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.534631462$ $19.32963008$ 1.034785760 \( \frac{639620855}{16777216} a^{2} + \frac{1476485127}{8388608} a + \frac{197847005}{2097152} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} - \frac{1}{2} a + 6\) , \( a\) , \( -\frac{2302003}{2} a^{2} + \frac{8950729}{2} a + 3188124\) , \( -8494002345 a^{2} + 33026685780 a + 23527169689\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(-\frac{1}{2}a^{2}-\frac{1}{2}a+6\right){x}^{2}+\left(-\frac{2302003}{2}a^{2}+\frac{8950729}{2}a+3188124\right){x}-8494002345a^{2}+33026685780a+23527169689$
4.3-b6 4.3-b 3.3.1849.1 \( 2^{2} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.383657865$ $154.6370406$ 1.034785760 \( \frac{248017}{64} a^{2} + \frac{111595}{8} a + \frac{38761}{4} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{1}{2} a + 6\) , \( 0\) , \( \frac{267}{2} a^{2} - \frac{431}{2} a - 1736\) , \( -917 a^{2} + 1481 a + 11927\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{1}{2}a+6\right){x}^{2}+\left(\frac{267}{2}a^{2}-\frac{431}{2}a-1736\right){x}-917a^{2}+1481a+11927$
8.1-a1 8.1-a 3.3.1849.1 \( 2^{3} \) $0 \le r \le 2$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $4.011156839$ 1.492523475 \( \frac{3627718341771149}{8589934592} a^{2} + \frac{12708628339978831}{8589934592} a + \frac{3221718432139487}{4294967296} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 6\) , \( 0\) , \( \frac{15}{2} a^{2} - \frac{59}{2} a - 18\) , \( -\frac{2781}{2} a^{2} + \frac{10821}{2} a + 3834\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-6\right){x}^{2}+\left(\frac{15}{2}a^{2}-\frac{59}{2}a-18\right){x}-\frac{2781}{2}a^{2}+\frac{10821}{2}a+3834$
8.1-a2 8.1-a 3.3.1849.1 \( 2^{3} \) $0 \le r \le 2$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.04462735$ 1.492523475 \( \frac{51416120837381}{2199023255552} a^{2} - \frac{720091938689771}{2199023255552} a + \frac{834832342065725}{549755813888} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 6\) , \( 0\) , \( -119759860 a^{2} + 465654682 a + 331717716\) , \( 1223694190430 a^{2} - 4758011815996 a - 3389457611904\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-6\right){x}^{2}+\left(-119759860a^{2}+465654682a+331717716\right){x}+1223694190430a^{2}-4758011815996a-3389457611904$
8.1-a3 8.1-a 3.3.1849.1 \( 2^{3} \) $0 \le r \le 2$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.005578419$ 1.492523475 \( -\frac{49580783989077628301225}{64} a^{2} + \frac{80076517406253230096411}{64} a + \frac{40304886381043760786659}{4} \) \( \bigl[1\) , \( 0\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( -\frac{3075637441991}{2} a^{2} + \frac{11958804252095}{2} a + 4259537562131\) , \( -\frac{6157005899514058307}{2} a^{2} + \frac{23939892045151880463}{2} a + 8527012170282607165\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){y}={x}^{3}+\left(-\frac{3075637441991}{2}a^{2}+\frac{11958804252095}{2}a+4259537562131\right){x}-\frac{6157005899514058307}{2}a^{2}+\frac{23939892045151880463}{2}a+8527012170282607165$
8.1-a4 8.1-a 3.3.1849.1 \( 2^{3} \) $0 \le r \le 2$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $8.022313679$ 1.492523475 \( -\frac{16539251112791}{2048} a^{2} + \frac{26320567871169}{2048} a + \frac{54220695855371}{512} \) \( \bigl[1\) , \( 0\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( -\frac{3095396232431}{2} a^{2} + \frac{12035631092575}{2} a + 4286902071651\) , \( -\frac{6075614882304537699}{2} a^{2} + \frac{23623424561241428639}{2} a + 8414291441145082861\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){y}={x}^{3}+\left(-\frac{3095396232431}{2}a^{2}+\frac{12035631092575}{2}a+4286902071651\right){x}-\frac{6075614882304537699}{2}a^{2}+\frac{23623424561241428639}{2}a+8414291441145082861$
8.1-a5 8.1-a 3.3.1849.1 \( 2^{3} \) $0 \le r \le 2$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.005578419$ 1.492523475 \( \frac{30420931852288651803}{256} a^{2} - \frac{59141881325312428975}{128} a - \frac{10532702922880478139}{32} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} - \frac{1}{2} a + 4\) , \( a\) , \( -158707903129450787 a^{2} + 617093783835962500 a + 439598156503851815\) , \( -99753682869079912702039732 a^{2} + 387865861746302664359408927 a + 276303411670367154257788225\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(-\frac{1}{2}a^{2}-\frac{1}{2}a+4\right){x}^{2}+\left(-158707903129450787a^{2}+617093783835962500a+439598156503851815\right){x}-99753682869079912702039732a^{2}+387865861746302664359408927a+276303411670367154257788225$
8.1-a6 8.1-a 3.3.1849.1 \( 2^{3} \) $0 \le r \le 2$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.04462735$ 1.492523475 \( -\frac{50621367819}{2097152} a^{2} + \frac{72238855205}{2097152} a + \frac{177831319381}{524288} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 5\) , \( a + 1\) , \( -15189325 a^{2} + 59059679 a + 42072259\) , \( -\frac{182505494641}{2} a^{2} + \frac{709624436071}{2} a + 252757037975\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+5\right){x}^{2}+\left(-15189325a^{2}+59059679a+42072259\right){x}-\frac{182505494641}{2}a^{2}+\frac{709624436071}{2}a+252757037975$
8.1-b1 8.1-b 3.3.1849.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.005578419$ 1.492523475 \( \frac{15247866708587800897593}{64} a^{2} + \frac{53417967852391853909671}{64} a + \frac{13543704268610741196775}{32} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -\frac{3505619809}{2} a^{2} - \frac{8373456057}{2} a - 1912026652\) , \( -\frac{258349956520917}{2} a^{2} - \frac{1005318188491443}{2} a - 260302759228368\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}^{2}+\left(-\frac{3505619809}{2}a^{2}-\frac{8373456057}{2}a-1912026652\right){x}-\frac{258349956520917}{2}a^{2}-\frac{1005318188491443}{2}a-260302759228368$
8.1-b2 8.1-b 3.3.1849.1 \( 2^{3} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $8.022313679$ 1.492523475 \( \frac{4890658379189}{2048} a^{2} + \frac{18406527088015}{2048} a + \frac{6182502630031}{1024} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -\frac{219683109}{2} a^{2} - \frac{521078557}{2} a - 118695812\) , \( -\frac{4044776198393}{2} a^{2} - \frac{15678187411863}{2} a - 4056508189528\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}^{2}+\left(-\frac{219683109}{2}a^{2}-\frac{521078557}{2}a-118695812\right){x}-\frac{4044776198393}{2}a^{2}-\frac{15678187411863}{2}a-4056508189528$
8.1-b3 8.1-b 3.3.1849.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.04462735$ 1.492523475 \( -\frac{334337908926195}{2199023255552} a^{2} + \frac{900181485103823}{2199023255552} a + \frac{3264096924023135}{1099511627776} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -758 a^{2} - 2697 a - 1366\) , \( -2163 a^{2} - 7356 a - 3714\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}^{2}+\left(-758a^{2}-2697a-1366\right){x}-2163a^{2}-7356a-3714$
8.1-b4 8.1-b 3.3.1849.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.005578419$ 1.492523475 \( -\frac{87862830798336206147}{512} a^{2} + \frac{141904764985854011229}{512} a + \frac{285699509166593758753}{128} \) \( \bigl[1\) , \( -a + 1\) , \( 0\) , \( -136930219333 a^{2} - 480088861360 a - 243486540062\) , \( -120359968985897693 a^{2} - 421678979526764474 a - 213829021937955940\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(-136930219333a^{2}-480088861360a-243486540062\right){x}-120359968985897693a^{2}-421678979526764474a-213829021937955940$
8.1-b5 8.1-b 3.3.1849.1 \( 2^{3} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.04462735$ 1.492523475 \( \frac{10808743693}{2097152} a^{2} + \frac{68816504559}{2097152} a + \frac{59320824895}{1048576} \) \( \bigl[1\) , \( a + 1\) , \( 0\) , \( -965526 a^{2} + 3725008 a + 2656418\) , \( -1189625710 a^{2} + 4621159606 a + 3292395148\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-965526a^{2}+3725008a+2656418\right){x}-1189625710a^{2}+4621159606a+3292395148$
8.1-b6 8.1-b 3.3.1849.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $4.011156839$ 1.492523475 \( \frac{4084086670437495}{4294967296} a^{2} - \frac{7939989176541817}{2147483648} a - \frac{1414047902813091}{536870912} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 5\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( -93008767623 a^{2} + 361640039403 a + 257620962662\) , \( -44749942048306662 a^{2} + 173998336065881803 a + 123950928971976024\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+5\right){x}^{2}+\left(-93008767623a^{2}+361640039403a+257620962662\right){x}-44749942048306662a^{2}+173998336065881803a+123950928971976024$
8.1-c1 8.1-c 3.3.1849.1 \( 2^{3} \) 0 $\Z/3\Z$ $\mathrm{SU}(2)$ $1$ $158.3231545$ 1.227311275 \( -\frac{8546212653}{262144} a^{2} - \frac{27793426991}{262144} a - \frac{6930928319}{131072} \) \( \bigl[1\) , \( 0\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( \frac{219}{2} a^{2} - \frac{355}{2} a - 1425\) , \( -140149 a^{2} + 226349 a + 1822858\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{219}{2}a^{2}-\frac{355}{2}a-1425\right){x}-140149a^{2}+226349a+1822858$
8.1-c2 8.1-c 3.3.1849.1 \( 2^{3} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $5.863820537$ 1.227311275 \( \frac{461685341165402387}{4503599627370496} a^{2} - \frac{1702134648083946351}{4503599627370496} a - \frac{610346759637856255}{2251799813685248} \) \( \bigl[1\) , \( 0\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -988 a^{2} + 1595 a + 12850\) , \( 3783807 a^{2} - 6111121 a - 49214528\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(-988a^{2}+1595a+12850\right){x}+3783807a^{2}-6111121a-49214528$
8.1-d1 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.547399842$ $6.007416618$ 1.297098911 \( \frac{29264590191614421}{33554432} a^{2} + \frac{102522835692825317}{33554432} a + \frac{12996927008167565}{8388608} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 5\) , \( -7206 a^{2} - 25244 a - 12798\) , \( -1458099 a^{2} - 5108177 a - 2590294\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}^{2}+\left(-7206a^{2}-25244a-12798\right){x}-1458099a^{2}-5108177a-2590294$
8.1-d2 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/6\Z$ $\mathrm{SU}(2)$ $0.515799947$ $162.2002486$ 1.297098911 \( \frac{9523381685}{512} a^{2} - \frac{37028757563}{512} a - \frac{6594534963}{128} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 4\) , \( \frac{1}{2} a^{2} - \frac{1}{2} a - 5\) , \( -96 a^{2} - 334 a - 163\) , \( -\frac{3605}{2} a^{2} - \frac{12635}{2} a - 3210\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-5\right){y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{1}{2}a-4\right){x}^{2}+\left(-96a^{2}-334a-163\right){x}-\frac{3605}{2}a^{2}-\frac{12635}{2}a-3210$
8.1-d3 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $3.094799685$ $12.01483323$ 1.297098911 \( \frac{747081097}{4096} \) \( \bigl[1\) , \( a + 1\) , \( a\) , \( \frac{94881}{2} a^{2} - \frac{153241}{2} a - 617040\) , \( \frac{27023339}{2} a^{2} - \frac{43644637}{2} a - 175741102\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(\frac{94881}{2}a^{2}-\frac{153241}{2}a-617040\right){x}+\frac{27023339}{2}a^{2}-\frac{43644637}{2}a-175741102$
8.1-d4 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/2\Z\oplus\Z/6\Z$ $\mathrm{SU}(2)$ $1.031599895$ $324.4004973$ 1.297098911 \( \frac{294937}{16} \) \( \bigl[1\) , \( a + 1\) , \( a\) , \( \frac{6961}{2} a^{2} - \frac{11241}{2} a - 45265\) , \( -\frac{511731}{2} a^{2} + \frac{826483}{2} a + 3327943\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(\frac{6961}{2}a^{2}-\frac{11241}{2}a-45265\right){x}-\frac{511731}{2}a^{2}+\frac{826483}{2}a+3327943$
8.1-d5 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.547399842$ $6.007416618$ 1.297098911 \( -\frac{47579151566917145}{16777216} a^{2} + \frac{38421870879265783}{8388608} a + \frac{77355466306495533}{2097152} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 5\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 4\) , \( \frac{46861}{2} a^{2} - \frac{75685}{2} a - 304752\) , \( 4741237 a^{2} - 7657438 a - 61667460\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-4\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+5\right){x}^{2}+\left(\frac{46861}{2}a^{2}-\frac{75685}{2}a-304752\right){x}+4741237a^{2}-7657438a-61667460$
8.1-d6 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/6\Z$ $\mathrm{SU}(2)$ $0.515799947$ $162.2002486$ 1.297098911 \( \frac{2114653127}{256} a^{2} + \frac{3704364279}{128} a + \frac{469740693}{32} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 5\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 4\) , \( \frac{621}{2} a^{2} - \frac{1005}{2} a - 4037\) , \( \frac{11725}{2} a^{2} - \frac{18941}{2} a - 76259\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-4\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+5\right){x}^{2}+\left(\frac{621}{2}a^{2}-\frac{1005}{2}a-4037\right){x}+\frac{11725}{2}a^{2}-\frac{18941}{2}a-76259$
8.1-d7 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.547399842$ $6.007416618$ 1.297098911 \( \frac{65893712942219869}{33554432} a^{2} - \frac{256210319209888449}{33554432} a - \frac{91258046794472241}{16777216} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 6\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( -458920937794 a^{2} - 1607741225073 a - 815260204308\) , \( -5124405501726437361 a^{2} - 17952368917266193425 a - 9103362981097420174\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+6\right){x}^{2}+\left(-458920937794a^{2}-1607741225073a-815260204308\right){x}-5124405501726437361a^{2}-17952368917266193425a-9103362981097420174$
8.1-d8 8.1-d 3.3.1849.1 \( 2^{3} \) $1$ $\Z/6\Z$ $\mathrm{SU}(2)$ $0.515799947$ $162.2002486$ 1.297098911 \( -\frac{13752687939}{512} a^{2} + \frac{22211300447}{512} a + \frac{89438590255}{256} \) \( \bigl[1\) , \( -\frac{1}{2} a^{2} + \frac{3}{2} a + 6\) , \( \frac{1}{2} a^{2} + \frac{1}{2} a - 5\) , \( 50824917136 a^{2} + 178055320237 a + 90289043107\) , \( \frac{372704835802970103}{2} a^{2} + \frac{1305699696741374595}{2} a + 331049855830269162\bigr] \) ${y}^2+{x}{y}+\left(\frac{1}{2}a^{2}+\frac{1}{2}a-5\right){y}={x}^{3}+\left(-\frac{1}{2}a^{2}+\frac{3}{2}a+6\right){x}^{2}+\left(50824917136a^{2}+178055320237a+90289043107\right){x}+\frac{372704835802970103}{2}a^{2}+\frac{1305699696741374595}{2}a+331049855830269162$
8.1-e1 8.1-e 3.3.1849.1 \( 2^{3} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $5.863820537$ 1.227311275 \( \frac{158539312293869595}{4503599627370496} a^{2} + \frac{764831370036935179}{4503599627370496} a + \frac{221849021777202659}{1125899906842624} \) \( \bigl[1\) , \( 0\) , \( a + 1\) , \( 684 a^{2} - 2660 a - 1895\) , \( -2620151 a^{2} + 10187764 a + 7257442\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+\left(684a^{2}-2660a-1895\right){x}-2620151a^{2}+10187764a+7257442$
8.1-e2 8.1-e 3.3.1849.1 \( 2^{3} \) 0 $\Z/3\Z$ $\mathrm{SU}(2)$ $1$ $158.3231545$ 1.227311275 \( \frac{26716032475}{262144} a^{2} - \frac{43808457781}{262144} a - \frac{87347970653}{65536} \) \( \bigl[1\) , \( 0\) , \( a + 1\) , \( -76 a^{2} + 295 a + 210\) , \( 97048 a^{2} - 377347 a - 268810\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+\left(-76a^{2}+295a+210\right){x}+97048a^{2}-377347a-268810$
8.1-f1 8.1-f 3.3.1849.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.04462735$ 1.492523475 \( \frac{141460894044407}{1099511627776} a^{2} - \frac{45022386603513}{549755813888} a + \frac{57590028379613}{137438953472} \) \( \bigl[1\) , \( \frac{1}{2} a^{2} - \frac{3}{2} a - 6\) , \( 1\) , \( -231508319 a^{2} - 811041940 a - 411266247\) , \( \frac{9870738940249}{2} a^{2} + \frac{34580235098373}{2} a + 8767545763482\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(\frac{1}{2}a^{2}-\frac{3}{2}a-6\right){x}^{2}+\left(-231508319a^{2}-811041940a-411266247\right){x}+\frac{9870738940249}{2}a^{2}+\frac{34580235098373}{2}a+8767545763482$
Next   displayed columns for results

  *The rank, regulator and analytic order of Ш are not known for all curves in the database; curves for which these are unknown will not appear in searches specifying one of these quantities.