Properties

Label 1248.2.bv.c
Level $1248$
Weight $2$
Character orbit 1248.bv
Analytic conductor $9.965$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1248,2,Mod(673,1248)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1248, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 5]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1248.673");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1248 = 2^{5} \cdot 3 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1248.bv (of order \(6\), degree \(2\), 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: \(9.96533017226\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 6 x^{15} + 28 x^{14} - 66 x^{13} + 152 x^{12} - 256 x^{11} + 402 x^{10} - 92 x^{9} - 1652 x^{8} + \cdots + 916 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{12} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

$q$-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.

\(f(q)\) \(=\) \( q + \beta_{9} q^{3} + (\beta_{13} - \beta_{11}) q^{5} - \beta_{6} q^{7} + ( - \beta_{9} - 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{9} q^{3} + (\beta_{13} - \beta_{11}) q^{5} - \beta_{6} q^{7} + ( - \beta_{9} - 1) q^{9} + ( - \beta_{13} + \beta_{5} - \beta_{2}) q^{11} + (\beta_{14} - \beta_{9} - 1) q^{13} - \beta_{13} q^{15} + (\beta_{9} + \beta_{2} + 1) q^{17} + (\beta_{15} - \beta_{14} - \beta_{13} + \cdots + 1) q^{19}+ \cdots + (\beta_{13} - \beta_{11} + \cdots + \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q - 8 q^{3} - 6 q^{7} - 8 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 8 q^{3} - 6 q^{7} - 8 q^{9} - 6 q^{15} + 6 q^{17} - 8 q^{23} - 20 q^{25} + 16 q^{27} - 10 q^{29} - 6 q^{37} + 6 q^{39} + 6 q^{41} + 18 q^{43} + 6 q^{45} + 14 q^{49} - 12 q^{51} - 12 q^{53} + 20 q^{55} + 12 q^{59} + 16 q^{61} + 6 q^{63} - 6 q^{65} + 30 q^{67} - 8 q^{69} + 24 q^{71} + 10 q^{75} + 8 q^{77} - 20 q^{79} - 8 q^{81} + 30 q^{85} - 10 q^{87} - 46 q^{91} + 6 q^{93} + 4 q^{95} - 18 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 6 x^{15} + 28 x^{14} - 66 x^{13} + 152 x^{12} - 256 x^{11} + 402 x^{10} - 92 x^{9} - 1652 x^{8} + \cdots + 916 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 22\!\cdots\!81 \nu^{15} + \cdots - 14\!\cdots\!28 ) / 61\!\cdots\!73 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 15\!\cdots\!75 \nu^{15} + \cdots - 53\!\cdots\!32 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 27\!\cdots\!97 \nu^{15} + \cdots + 13\!\cdots\!84 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 27\!\cdots\!97 \nu^{15} + \cdots - 13\!\cdots\!84 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 43\!\cdots\!54 \nu^{15} + \cdots - 90\!\cdots\!76 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 66\!\cdots\!95 \nu^{15} + \cdots + 46\!\cdots\!96 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 14\!\cdots\!39 \nu^{15} + \cdots - 17\!\cdots\!74 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 15\!\cdots\!73 \nu^{15} + \cdots - 12\!\cdots\!12 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - 46951055886214 \nu^{15} + 257032746536189 \nu^{14} + \cdots + 75\!\cdots\!76 ) / 34\!\cdots\!42 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 15\!\cdots\!12 \nu^{15} + \cdots + 29\!\cdots\!44 ) / 61\!\cdots\!09 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 31\!\cdots\!25 \nu^{15} + \cdots - 49\!\cdots\!50 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 36\!\cdots\!12 \nu^{15} + \cdots - 59\!\cdots\!72 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 36\!\cdots\!29 \nu^{15} + \cdots + 59\!\cdots\!48 ) / 12\!\cdots\!46 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 21\!\cdots\!44 \nu^{15} + \cdots - 35\!\cdots\!95 ) / 61\!\cdots\!73 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 22\!\cdots\!12 \nu^{15} + \cdots + 31\!\cdots\!92 ) / 61\!\cdots\!09 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{4} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{14} + \beta_{13} - \beta_{9} + \beta_{8} - 4 \beta_{7} - 4 \beta_{6} + \beta_{5} + 3 \beta_{3} + \cdots - 5 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 3 \beta_{15} + 4 \beta_{14} + 12 \beta_{13} + 8 \beta_{12} + 4 \beta_{11} - \beta_{10} + 4 \beta_{9} + \cdots - 34 ) / 4 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( - \beta_{15} - 3 \beta_{14} + \beta_{13} - 3 \beta_{12} + 3 \beta_{11} - 2 \beta_{10} + 8 \beta_{9} + \cdots - 21 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( - 14 \beta_{15} - 36 \beta_{14} - 76 \beta_{13} - 104 \beta_{12} - 64 \beta_{11} + 3 \beta_{10} + \cdots + 182 ) / 4 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( - 21 \beta_{15} - 44 \beta_{14} - 23 \beta_{13} - 131 \beta_{11} + 7 \beta_{10} - 280 \beta_{9} + \cdots + 560 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 43 \beta_{15} + 184 \beta_{14} + 106 \beta_{13} + 634 \beta_{12} + 24 \beta_{11} + 64 \beta_{10} + \cdots + 1792 ) / 4 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 282 \beta_{15} + 1157 \beta_{14} - 141 \beta_{13} + 494 \beta_{12} + 1304 \beta_{11} + 189 \beta_{10} + \cdots - 1854 ) / 2 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 2295 \beta_{15} + 5080 \beta_{14} + 216 \beta_{13} - 388 \beta_{12} + 8272 \beta_{11} + 9 \beta_{10} + \cdots - 29594 ) / 4 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( - 93 \beta_{15} - 6223 \beta_{14} + 3156 \beta_{13} - 6432 \beta_{12} + 423 \beta_{11} - 2572 \beta_{10} + \cdots - 43949 ) / 2 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 23072 \beta_{15} - 97536 \beta_{14} + 30696 \beta_{13} - 43616 \beta_{12} - 93924 \beta_{11} + \cdots - 27018 ) / 4 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( - 36441 \beta_{15} - 98272 \beta_{14} + 37770 \beta_{13} + 23779 \beta_{12} - 166417 \beta_{11} + \cdots + 485421 ) / 2 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( - 17947 \beta_{15} + 421968 \beta_{14} - 285198 \beta_{13} + 543910 \beta_{12} - 60520 \beta_{11} + \cdots + 4119420 ) / 4 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 386080 \beta_{15} + 1922393 \beta_{14} - 1218787 \beta_{13} + 425004 \beta_{12} + 1710132 \beta_{11} + \cdots + 2272183 ) / 2 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 2965963 \beta_{15} + 8645508 \beta_{14} - 4370400 \beta_{13} - 2173804 \beta_{12} + 12451988 \beta_{11} + \cdots - 30991414 ) / 4 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1248\mathbb{Z}\right)^\times\).

\(n\) \(703\) \(769\) \(833\) \(1093\)
\(\chi(n)\) \(1\) \(1 + \beta_{9}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
673.1
1.10545 0.463134i
0.570735 + 0.0355035i
−0.791982 + 0.726156i
−1.18206 0.128024i
−1.00880 2.24651i
1.16409 + 2.58125i
1.32930 + 0.617465i
1.81326 2.85475i
1.81326 + 2.85475i
1.32930 0.617465i
1.16409 2.58125i
−1.00880 + 2.24651i
−1.18206 + 0.128024i
−0.791982 0.726156i
0.570735 0.0355035i
1.10545 + 0.463134i
0 −0.500000 0.866025i 0 3.89452i 0 −3.97395 2.29436i 0 −0.500000 + 0.866025i 0
673.2 0 −0.500000 0.866025i 0 3.51799i 0 0.163186 + 0.0942157i 0 −0.500000 + 0.866025i 0
673.3 0 −0.500000 0.866025i 0 2.12383i 0 3.18859 + 1.84094i 0 −0.500000 + 0.866025i 0
673.4 0 −0.500000 0.866025i 0 1.01353i 0 −0.385170 0.222378i 0 −0.500000 + 0.866025i 0
673.5 0 −0.500000 0.866025i 0 0.0205602i 0 1.31495 + 0.759185i 0 −0.500000 + 0.866025i 0
673.6 0 −0.500000 0.866025i 0 2.20096i 0 2.50556 + 1.44658i 0 −0.500000 + 0.866025i 0
673.7 0 −0.500000 0.866025i 0 2.30686i 0 −3.76164 2.17178i 0 −0.500000 + 0.866025i 0
673.8 0 −0.500000 0.866025i 0 2.59851i 0 −2.05152 1.18445i 0 −0.500000 + 0.866025i 0
1057.1 0 −0.500000 + 0.866025i 0 2.59851i 0 −2.05152 + 1.18445i 0 −0.500000 0.866025i 0
1057.2 0 −0.500000 + 0.866025i 0 2.30686i 0 −3.76164 + 2.17178i 0 −0.500000 0.866025i 0
1057.3 0 −0.500000 + 0.866025i 0 2.20096i 0 2.50556 1.44658i 0 −0.500000 0.866025i 0
1057.4 0 −0.500000 + 0.866025i 0 0.0205602i 0 1.31495 0.759185i 0 −0.500000 0.866025i 0
1057.5 0 −0.500000 + 0.866025i 0 1.01353i 0 −0.385170 + 0.222378i 0 −0.500000 0.866025i 0
1057.6 0 −0.500000 + 0.866025i 0 2.12383i 0 3.18859 1.84094i 0 −0.500000 0.866025i 0
1057.7 0 −0.500000 + 0.866025i 0 3.51799i 0 0.163186 0.0942157i 0 −0.500000 0.866025i 0
1057.8 0 −0.500000 + 0.866025i 0 3.89452i 0 −3.97395 + 2.29436i 0 −0.500000 0.866025i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 673.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
13.e even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1248.2.bv.c 16
4.b odd 2 1 1248.2.bv.d yes 16
13.e even 6 1 inner 1248.2.bv.c 16
52.i odd 6 1 1248.2.bv.d yes 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1248.2.bv.c 16 1.a even 1 1 trivial
1248.2.bv.c 16 13.e even 6 1 inner
1248.2.bv.d yes 16 4.b odd 2 1
1248.2.bv.d yes 16 52.i odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1248, [\chi])\):

\( T_{5}^{16} + 50 T_{5}^{14} + 999 T_{5}^{12} + 10300 T_{5}^{10} + 58943 T_{5}^{8} + 184978 T_{5}^{6} + \cdots + 64 \) Copy content Toggle raw display
\( T_{7}^{16} + 6 T_{7}^{15} - 17 T_{7}^{14} - 174 T_{7}^{13} + 309 T_{7}^{12} + 3156 T_{7}^{11} + \cdots + 4096 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( (T^{2} + T + 1)^{8} \) Copy content Toggle raw display
$5$ \( T^{16} + 50 T^{14} + \cdots + 64 \) Copy content Toggle raw display
$7$ \( T^{16} + 6 T^{15} + \cdots + 4096 \) Copy content Toggle raw display
$11$ \( T^{16} - 52 T^{14} + \cdots + 65536 \) Copy content Toggle raw display
$13$ \( T^{16} + \cdots + 815730721 \) Copy content Toggle raw display
$17$ \( T^{16} - 6 T^{15} + \cdots + 8042896 \) Copy content Toggle raw display
$19$ \( T^{16} - 116 T^{14} + \cdots + 44302336 \) Copy content Toggle raw display
$23$ \( T^{16} + \cdots + 60902342656 \) Copy content Toggle raw display
$29$ \( T^{16} + \cdots + 8333498944 \) Copy content Toggle raw display
$31$ \( T^{16} + \cdots + 3650093056 \) Copy content Toggle raw display
$37$ \( T^{16} + \cdots + 28407079936 \) Copy content Toggle raw display
$41$ \( T^{16} - 6 T^{15} + \cdots + 541696 \) Copy content Toggle raw display
$43$ \( T^{16} + \cdots + 23377186816 \) Copy content Toggle raw display
$47$ \( T^{16} + \cdots + 4498653184 \) Copy content Toggle raw display
$53$ \( (T^{8} + 6 T^{7} + \cdots + 2513872)^{2} \) Copy content Toggle raw display
$59$ \( T^{16} + \cdots + 17179869184 \) Copy content Toggle raw display
$61$ \( T^{16} + \cdots + 1561222761121 \) Copy content Toggle raw display
$67$ \( T^{16} + \cdots + 176076339429376 \) Copy content Toggle raw display
$71$ \( T^{16} + \cdots + 165864725807104 \) Copy content Toggle raw display
$73$ \( T^{16} + \cdots + 493543502473921 \) Copy content Toggle raw display
$79$ \( (T^{8} + 10 T^{7} + \cdots + 4096)^{2} \) Copy content Toggle raw display
$83$ \( T^{16} + \cdots + 1479278657536 \) Copy content Toggle raw display
$89$ \( T^{16} + \cdots + 268435456 \) Copy content Toggle raw display
$97$ \( T^{16} + \cdots + 177209344 \) Copy content Toggle raw display
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