Properties

Label 847.2.l.h
Level $847$
Weight $2$
Character orbit 847.l
Analytic conductor $6.763$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [847,2,Mod(118,847)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(847, base_ring=CyclotomicField(10))
 
chi = DirichletCharacter(H, H._module([5, 3]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("847.118");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 847 = 7 \cdot 11^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 847.l (of order \(10\), degree \(4\), not minimal)

Newform invariants

comment: select newform
 
sage: f = N[0] # Warning: the index may be different
 
gp: f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(6.76332905120\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(4\) over \(\Q(\zeta_{10})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} + \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} + 2x^{14} - 16x^{12} - 72x^{10} + 26x^{8} + 360x^{6} + 725x^{4} + 1000x^{2} + 625 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{10}]$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_{15} - \beta_{10} + \beta_{8}) q^{2} + (\beta_{7} - \beta_{2}) q^{3} + ( - 2 \beta_{4} + 2) q^{4} + ( - \beta_{6} - \beta_{2}) q^{5} + (\beta_{15} + 2 \beta_{13} + \cdots - 2 \beta_1) q^{6}+ \cdots + ( - 2 \beta_{4} - 2 \beta_{3}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\beta_{15} - \beta_{10} + \beta_{8}) q^{2} + (\beta_{7} - \beta_{2}) q^{3} + ( - 2 \beta_{4} + 2) q^{4} + ( - \beta_{6} - \beta_{2}) q^{5} + (\beta_{15} + 2 \beta_{13} + \cdots - 2 \beta_1) q^{6}+ \cdots + ( - 3 \beta_{15} + 3 \beta_{14} + \cdots - 2 \beta_1) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 24 q^{4} - 16 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 24 q^{4} - 16 q^{9} - 40 q^{14} + 36 q^{15} - 16 q^{23} + 16 q^{25} - 64 q^{36} + 12 q^{37} + 28 q^{42} - 48 q^{49} + 8 q^{53} - 80 q^{56} - 24 q^{58} + 64 q^{60} + 64 q^{64} - 48 q^{67} - 32 q^{70} - 4 q^{71} + 256 q^{78} + 44 q^{81} - 104 q^{86} - 56 q^{91} - 104 q^{92} - 52 q^{93}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} + 2x^{14} - 16x^{12} - 72x^{10} + 26x^{8} + 360x^{6} + 725x^{4} + 1000x^{2} + 625 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 155 \nu^{14} - 1408 \nu^{12} - 4611 \nu^{10} + 9188 \nu^{8} + 65146 \nu^{6} - 26953 \nu^{4} + \cdots + 108500 ) / 176275 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 5996 \nu^{14} + 4807 \nu^{12} - 95306 \nu^{10} - 277252 \nu^{8} + 500966 \nu^{6} + 1108500 \nu^{4} + \cdots + 2787000 ) / 881375 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 8474 \nu^{14} + 2743 \nu^{12} - 149594 \nu^{10} - 389798 \nu^{8} + 955934 \nu^{6} + 2009635 \nu^{4} + \cdots + 3175500 ) / 881375 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 8672 \nu^{14} - 3649 \nu^{12} + 153342 \nu^{10} + 402539 \nu^{8} - 938462 \nu^{6} + \cdots - 3730750 ) / 881375 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 12916 \nu^{14} - 10637 \nu^{12} + 225196 \nu^{10} + 690882 \nu^{8} - 1135131 \nu^{6} + \cdots - 6749625 ) / 881375 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 14403 \nu^{14} - 14916 \nu^{12} + 224078 \nu^{10} + 748351 \nu^{8} - 1023533 \nu^{6} + \cdots - 6732875 ) / 881375 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 1496 \nu^{15} - 2572 \nu^{13} + 24401 \nu^{11} + 91992 \nu^{9} - 100886 \nu^{7} + \cdots - 598500 \nu ) / 400625 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - 22098 \nu^{14} - 13706 \nu^{12} + 377023 \nu^{10} + 1116041 \nu^{8} - 1983428 \nu^{6} + \cdots - 11238000 ) / 881375 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 22194 \nu^{15} + 11523 \nu^{13} - 339409 \nu^{11} - 1024903 \nu^{9} + 1669899 \nu^{7} + \cdots + 9814875 \nu ) / 4406875 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 25903 \nu^{15} - 3944 \nu^{13} - 422373 \nu^{11} - 826866 \nu^{9} + 3248903 \nu^{7} + \cdots + 4286500 \nu ) / 4406875 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 8474 \nu^{15} + 2743 \nu^{13} - 149594 \nu^{11} - 389798 \nu^{9} + 955934 \nu^{7} + \cdots + 2294125 \nu ) / 881375 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 8672 \nu^{15} - 3649 \nu^{13} + 153342 \nu^{11} + 402539 \nu^{9} - 938462 \nu^{7} + \cdots - 3730750 \nu ) / 881375 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 50508 \nu^{15} - 41726 \nu^{13} + 817683 \nu^{11} + 2587261 \nu^{9} - 4065438 \nu^{7} + \cdots - 22711875 \nu ) / 4406875 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 11661 \nu^{15} - 8721 \nu^{13} + 202398 \nu^{11} + 611766 \nu^{9} - 1064278 \nu^{7} + \cdots - 5486525 \nu ) / 881375 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{9} - \beta_{7} - \beta_{6} - \beta_{3} + \beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -\beta_{15} - 2\beta_{14} + \beta_{13} - \beta_{12} + \beta_{11} - 3\beta_{10} + 2\beta_{8} - \beta_1 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 2\beta_{7} - 2\beta_{6} + 8\beta_{5} + 5\beta_{4} + 5\beta_{3} \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( -13\beta_{15} + 13\beta_{14} + 12\beta_{13} + 7\beta_{11} + 7\beta_{10} - 5\beta_{8} + 7\beta_1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 11\beta_{9} - 11\beta_{7} - 6\beta_{6} + 11\beta_{4} - 15\beta_{3} + 5\beta_{2} + 15 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( 20\beta_{15} - 43\beta_{14} + 9\beta_{12} - 4\beta_{11} - 43\beta_{10} + 20\beta_{8} + 9\beta_1 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( 32\beta_{9} - 52\beta_{6} + 53\beta_{5} + 18\beta_{4} + 53\beta_{3} + 32\beta_{2} - 18 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( -209\beta_{15} + 137\beta_{14} + 137\beta_{13} - 87\beta_{12} + 137\beta_{11} + 21\beta_{10} - 21\beta_{8} \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( 21\beta_{9} - 36\beta_{7} + 275\beta_{5} + 275\beta_{4} + 166 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( 78\beta_{15} - 129\beta_{14} + 239\beta_{13} + 239\beta_{12} - 78\beta_{10} + 384\beta_1 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 752\beta_{9} - 462\beta_{7} - 752\beta_{6} - 110\beta_{5} - 177\beta_{3} + 462\beta_{2} + 110 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( - 1037 \beta_{15} - 639 \beta_{14} + 642 \beta_{13} - 1037 \beta_{12} + 1037 \beta_{11} + \cdots - 642 \beta_1 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( 639\beta_{7} - 639\beta_{6} + 5431\beta_{5} + 3360\beta_{4} + 3360\beta_{3} + 400\beta_{2} \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( -6716\beta_{15} + 6716\beta_{14} + 7109\beta_{13} + 4399\beta_{11} + 4399\beta_{10} - 2960\beta_{8} + 4399\beta_1 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/847\mathbb{Z}\right)^\times\).

\(n\) \(122\) \(365\)
\(\chi(n)\) \(-1\) \(1 - \beta_{3} - \beta_{4} - \beta_{5}\)

Embeddings

For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.

For more information on an embedded modular form you can click on its label.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
118.1
−1.90184 + 0.0324487i
0.556839 + 1.81878i
1.90184 0.0324487i
−0.556839 1.81878i
−0.752864 0.902863i
−0.0783900 + 1.17295i
0.752864 + 0.902863i
0.0783900 1.17295i
−1.90184 0.0324487i
0.556839 1.81878i
1.90184 + 0.0324487i
−0.556839 + 1.81878i
−0.752864 + 0.902863i
−0.0783900 1.17295i
0.752864 0.902863i
0.0783900 + 1.17295i
−0.513743 0.707107i −1.26313 + 0.410415i 0.381966 1.17557i 0.780656 1.07448i 0.939130 + 0.682318i 1.68914 2.03637i −2.68999 + 0.874032i −1.00000 + 0.726543i −1.16083
118.2 −0.513743 0.707107i 1.26313 0.410415i 0.381966 1.17557i −0.780656 + 1.07448i −0.939130 0.682318i 0.169598 + 2.64031i −2.68999 + 0.874032i −1.00000 + 0.726543i 1.16083
118.3 0.513743 + 0.707107i −1.26313 + 0.410415i 0.381966 1.17557i 0.780656 1.07448i −0.939130 0.682318i −1.68914 + 2.03637i 2.68999 0.874032i −1.00000 + 0.726543i 1.16083
118.4 0.513743 + 0.707107i 1.26313 0.410415i 0.381966 1.17557i −0.780656 + 1.07448i 0.939130 + 0.682318i −0.169598 2.64031i 2.68999 0.874032i −1.00000 + 0.726543i −1.16083
475.1 −2.17625 0.707107i −1.46782 2.02029i 2.61803 + 1.90211i −2.37499 + 0.771681i 1.76580 + 5.43456i 0.958092 2.46618i −1.66251 2.28825i −1.00000 + 3.07768i 5.71423
475.2 −2.17625 0.707107i 1.46782 + 2.02029i 2.61803 + 1.90211i 2.37499 0.771681i −1.76580 5.43456i 2.04941 1.67329i −1.66251 2.28825i −1.00000 + 3.07768i −5.71423
475.3 2.17625 + 0.707107i −1.46782 2.02029i 2.61803 + 1.90211i −2.37499 + 0.771681i −1.76580 5.43456i −0.958092 + 2.46618i 1.66251 + 2.28825i −1.00000 + 3.07768i −5.71423
475.4 2.17625 + 0.707107i 1.46782 + 2.02029i 2.61803 + 1.90211i 2.37499 0.771681i 1.76580 + 5.43456i −2.04941 + 1.67329i 1.66251 + 2.28825i −1.00000 + 3.07768i 5.71423
524.1 −0.513743 + 0.707107i −1.26313 0.410415i 0.381966 + 1.17557i 0.780656 + 1.07448i 0.939130 0.682318i 1.68914 + 2.03637i −2.68999 0.874032i −1.00000 0.726543i −1.16083
524.2 −0.513743 + 0.707107i 1.26313 + 0.410415i 0.381966 + 1.17557i −0.780656 1.07448i −0.939130 + 0.682318i 0.169598 2.64031i −2.68999 0.874032i −1.00000 0.726543i 1.16083
524.3 0.513743 0.707107i −1.26313 0.410415i 0.381966 + 1.17557i 0.780656 + 1.07448i −0.939130 + 0.682318i −1.68914 2.03637i 2.68999 + 0.874032i −1.00000 0.726543i 1.16083
524.4 0.513743 0.707107i 1.26313 + 0.410415i 0.381966 + 1.17557i −0.780656 1.07448i 0.939130 0.682318i −0.169598 + 2.64031i 2.68999 + 0.874032i −1.00000 0.726543i −1.16083
699.1 −2.17625 + 0.707107i −1.46782 + 2.02029i 2.61803 1.90211i −2.37499 0.771681i 1.76580 5.43456i 0.958092 + 2.46618i −1.66251 + 2.28825i −1.00000 3.07768i 5.71423
699.2 −2.17625 + 0.707107i 1.46782 2.02029i 2.61803 1.90211i 2.37499 + 0.771681i −1.76580 + 5.43456i 2.04941 + 1.67329i −1.66251 + 2.28825i −1.00000 3.07768i −5.71423
699.3 2.17625 0.707107i −1.46782 + 2.02029i 2.61803 1.90211i −2.37499 0.771681i −1.76580 + 5.43456i −0.958092 2.46618i 1.66251 2.28825i −1.00000 3.07768i −5.71423
699.4 2.17625 0.707107i 1.46782 2.02029i 2.61803 1.90211i 2.37499 + 0.771681i 1.76580 5.43456i −2.04941 1.67329i 1.66251 2.28825i −1.00000 3.07768i 5.71423
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 118.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.b odd 2 1 inner
11.b odd 2 1 inner
11.c even 5 1 inner
11.d odd 10 1 inner
77.b even 2 1 inner
77.j odd 10 1 inner
77.l even 10 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 847.2.l.h 16
7.b odd 2 1 inner 847.2.l.h 16
11.b odd 2 1 inner 847.2.l.h 16
11.c even 5 1 847.2.b.c 8
11.c even 5 2 847.2.l.f 16
11.c even 5 1 inner 847.2.l.h 16
11.d odd 10 1 847.2.b.c 8
11.d odd 10 2 847.2.l.f 16
11.d odd 10 1 inner 847.2.l.h 16
77.b even 2 1 inner 847.2.l.h 16
77.j odd 10 1 847.2.b.c 8
77.j odd 10 2 847.2.l.f 16
77.j odd 10 1 inner 847.2.l.h 16
77.l even 10 1 847.2.b.c 8
77.l even 10 2 847.2.l.f 16
77.l even 10 1 inner 847.2.l.h 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
847.2.b.c 8 11.c even 5 1
847.2.b.c 8 11.d odd 10 1
847.2.b.c 8 77.j odd 10 1
847.2.b.c 8 77.l even 10 1
847.2.l.f 16 11.c even 5 2
847.2.l.f 16 11.d odd 10 2
847.2.l.f 16 77.j odd 10 2
847.2.l.f 16 77.l even 10 2
847.2.l.h 16 1.a even 1 1 trivial
847.2.l.h 16 7.b odd 2 1 inner
847.2.l.h 16 11.b odd 2 1 inner
847.2.l.h 16 11.c even 5 1 inner
847.2.l.h 16 11.d odd 10 1 inner
847.2.l.h 16 77.b even 2 1 inner
847.2.l.h 16 77.j odd 10 1 inner
847.2.l.h 16 77.l even 10 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{8} - 8T_{2}^{6} + 24T_{2}^{4} + 8T_{2}^{2} + 16 \) acting on \(S_{2}^{\mathrm{new}}(847, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{8} - 8 T^{6} + 24 T^{4} + \cdots + 16)^{2} \) Copy content Toggle raw display
$3$ \( (T^{8} + T^{6} + 31 T^{4} + \cdots + 121)^{2} \) Copy content Toggle raw display
$5$ \( (T^{8} - 9 T^{6} + \cdots + 121)^{2} \) Copy content Toggle raw display
$7$ \( T^{16} + 24 T^{14} + \cdots + 5764801 \) Copy content Toggle raw display
$11$ \( T^{16} \) Copy content Toggle raw display
$13$ \( (T^{8} + 8 T^{6} + \cdots + 495616)^{2} \) Copy content Toggle raw display
$17$ \( (T^{8} + 90 T^{6} + \cdots + 1210000)^{2} \) Copy content Toggle raw display
$19$ \( (T^{8} + 12 T^{6} + \cdots + 1936)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} + 2 T - 19)^{8} \) Copy content Toggle raw display
$29$ \( (T^{8} - 72 T^{6} + \cdots + 104976)^{2} \) Copy content Toggle raw display
$31$ \( (T^{8} + 19 T^{6} + \cdots + 121)^{2} \) Copy content Toggle raw display
$37$ \( (T^{4} - 3 T^{3} + 9 T^{2} + \cdots + 81)^{4} \) Copy content Toggle raw display
$41$ \( (T^{8} + 12 T^{6} + \cdots + 1936)^{2} \) Copy content Toggle raw display
$43$ \( (T^{4} + 174 T^{2} + 6724)^{4} \) Copy content Toggle raw display
$47$ \( (T^{8} - 120 T^{6} + \cdots + 19360000)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} - 2 T^{3} + 4 T^{2} + \cdots + 16)^{4} \) Copy content Toggle raw display
$59$ \( (T^{8} - 39 T^{6} + \cdots + 15768841)^{2} \) Copy content Toggle raw display
$61$ \( (T^{8} + 2 T^{6} + \cdots + 1936)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} + 6 T - 71)^{8} \) Copy content Toggle raw display
$71$ \( (T^{4} + T^{3} + T^{2} + \cdots + 1)^{4} \) Copy content Toggle raw display
$73$ \( (T^{8} + 60 T^{6} + \cdots + 1210000)^{2} \) Copy content Toggle raw display
$79$ \( (T^{8} - 18 T^{6} + \cdots + 104976)^{2} \) Copy content Toggle raw display
$83$ \( (T^{8} + 68 T^{6} + \cdots + 28344976)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} + 440 T^{2} + 33275)^{4} \) Copy content Toggle raw display
$97$ \( (T^{8} + 19 T^{6} + \cdots + 121)^{2} \) Copy content Toggle raw display
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