Properties

Label 2100.2.x.c
Level $2100$
Weight $2$
Character orbit 2100.x
Analytic conductor $16.769$
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] = [2100,2,Mod(1357,2100)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2100, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([0, 0, 1, 2]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2100.1357");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2100 = 2^{2} \cdot 3 \cdot 5^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2100.x (of order \(4\), 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: \(16.7685844245\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(i)\)
Coefficient field: 16.0.478584585616890104119296.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 31x^{12} + 336x^{8} - 19375x^{4} + 390625 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{4} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-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.

\(f(q)\) \(=\) \( q - \beta_{2} q^{3} + ( - \beta_{14} - \beta_{13} + \beta_{12}) q^{7} - \beta_{11} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{2} q^{3} + ( - \beta_{14} - \beta_{13} + \beta_{12}) q^{7} - \beta_{11} q^{9} + (\beta_{6} - \beta_{4} - 2 \beta_{3} - 1) q^{11} + (\beta_{9} + \beta_{8} - 2 \beta_1) q^{13} - 2 \beta_{12} q^{17} + ( - \beta_{7} + 3 \beta_{5}) q^{19} + ( - \beta_{6} + \beta_{3} + 1) q^{21} + (2 \beta_{9} + \beta_{8}) q^{23} - \beta_{12} q^{27} + (5 \beta_{11} + 2 \beta_{10} + \cdots + \beta_{5}) q^{29}+ \cdots + (\beta_{11} + 2 \beta_{10} + \cdots + \beta_{5}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 8 q^{11} + 12 q^{21} - 32 q^{51} + 88 q^{71} - 16 q^{81} - 108 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 31x^{12} + 336x^{8} - 19375x^{4} + 390625 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -71\nu^{13} - 924\nu^{9} - 23856\nu^{5} + 1375625\nu ) / 2362500 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 71\nu^{12} + 924\nu^{8} + 23856\nu^{4} - 1375625 ) / 472500 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -173\nu^{12} - 1512\nu^{8} + 46872\nu^{4} + 2196875 ) / 945000 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -81\nu^{14} + 3136\nu^{10} - 62216\nu^{6} + 3529375\nu^{2} ) / 7875000 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 31\nu^{12} - 336\nu^{8} + 10416\nu^{4} - 495625 ) / 105000 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 99\nu^{14} + 56\nu^{10} - 141736\nu^{6} + 6875\nu^{2} ) / 7875000 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( -11\nu^{13} + 216\nu^{9} - 6696\nu^{5} + 246125\nu ) / 135000 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( -23\nu^{13} + 88\nu^{9} + 2272\nu^{5} + 335625\nu ) / 225000 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( -71\nu^{14} - 924\nu^{10} - 23856\nu^{6} + 1375625\nu^{2} ) / 2362500 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( -31\nu^{14} + 336\nu^{10} - 6666\nu^{6} + 390625\nu^{2} ) / 843750 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( -\nu^{15} + 19459\nu^{3} ) / 94500 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 61\nu^{15} - 16\nu^{11} + 40496\nu^{7} - 1176875\nu^{3} ) / 5625000 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( \nu^{15} - 31\nu^{11} + 336\nu^{7} - 19375\nu^{3} ) / 78125 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( -221\nu^{15} - 24\nu^{11} + 60744\nu^{7} + 96875\nu^{3} ) / 16875000 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( -2\beta_{11} + \beta_{10} - \beta_{7} + 3\beta_{5} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -4\beta_{15} + 2\beta_{13} + 7\beta_{12} \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{6} + 9\beta_{4} + 9\beta_{3} + 10 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( 17\beta_{9} - 11\beta_{8} - 28\beta_{2} + 11\beta_1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( -27\beta_{11} - 56\beta_{7} + 28\beta_{5} \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( \beta_{15} - \beta_{14} + 139\beta_{13} + 140\beta_{12} \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( -142\beta_{6} + 279\beta_{3} + 142 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( 142\beta_{9} + 284\beta_{8} - 1253\beta_{2} \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( 710\beta_{11} - 1111\beta_{10} + 710\beta_{5} \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( -2531\beta_{14} + 1512\beta_{13} - 1512\beta_{12} \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 1512\beta_{6} - 3024\beta_{4} + 14167 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( -7560\beta_{9} - 7560\beta_{2} + 15679\beta_1 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( -38918\beta_{11} + 559\beta_{10} - 559\beta_{7} + 39477\beta_{5} \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( -77836\beta_{15} + 38918\beta_{13} + 41713\beta_{12} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2100\mathbb{Z}\right)^\times\).

\(n\) \(701\) \(1051\) \(1177\) \(1501\)
\(\chi(n)\) \(1\) \(1\) \(-\beta_{11}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1357.1
−0.0811201 2.23460i
−2.23460 0.0811201i
1.04705 + 1.97578i
1.97578 + 1.04705i
−1.97578 1.04705i
−1.04705 1.97578i
2.23460 + 0.0811201i
0.0811201 + 2.23460i
−0.0811201 + 2.23460i
−2.23460 + 0.0811201i
1.04705 1.97578i
1.97578 1.04705i
−1.97578 + 1.04705i
−1.04705 + 1.97578i
2.23460 0.0811201i
0.0811201 2.23460i
0 −0.707107 0.707107i 0 0 0 −2.01297 + 1.71696i 0 1.00000i 0
1357.2 0 −0.707107 0.707107i 0 0 0 −1.71696 + 2.01297i 0 1.00000i 0
1357.3 0 −0.707107 0.707107i 0 0 0 −0.884806 2.49342i 0 1.00000i 0
1357.4 0 −0.707107 0.707107i 0 0 0 2.49342 + 0.884806i 0 1.00000i 0
1357.5 0 0.707107 + 0.707107i 0 0 0 −2.49342 0.884806i 0 1.00000i 0
1357.6 0 0.707107 + 0.707107i 0 0 0 0.884806 + 2.49342i 0 1.00000i 0
1357.7 0 0.707107 + 0.707107i 0 0 0 1.71696 2.01297i 0 1.00000i 0
1357.8 0 0.707107 + 0.707107i 0 0 0 2.01297 1.71696i 0 1.00000i 0
1693.1 0 −0.707107 + 0.707107i 0 0 0 −2.01297 1.71696i 0 1.00000i 0
1693.2 0 −0.707107 + 0.707107i 0 0 0 −1.71696 2.01297i 0 1.00000i 0
1693.3 0 −0.707107 + 0.707107i 0 0 0 −0.884806 + 2.49342i 0 1.00000i 0
1693.4 0 −0.707107 + 0.707107i 0 0 0 2.49342 0.884806i 0 1.00000i 0
1693.5 0 0.707107 0.707107i 0 0 0 −2.49342 + 0.884806i 0 1.00000i 0
1693.6 0 0.707107 0.707107i 0 0 0 0.884806 2.49342i 0 1.00000i 0
1693.7 0 0.707107 0.707107i 0 0 0 1.71696 + 2.01297i 0 1.00000i 0
1693.8 0 0.707107 0.707107i 0 0 0 2.01297 + 1.71696i 0 1.00000i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1357.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner
5.c odd 4 2 inner
7.b odd 2 1 inner
35.c odd 2 1 inner
35.f even 4 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2100.2.x.c 16
5.b even 2 1 inner 2100.2.x.c 16
5.c odd 4 2 inner 2100.2.x.c 16
7.b odd 2 1 inner 2100.2.x.c 16
35.c odd 2 1 inner 2100.2.x.c 16
35.f even 4 2 inner 2100.2.x.c 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2100.2.x.c 16 1.a even 1 1 trivial
2100.2.x.c 16 5.b even 2 1 inner
2100.2.x.c 16 5.c odd 4 2 inner
2100.2.x.c 16 7.b odd 2 1 inner
2100.2.x.c 16 35.c odd 2 1 inner
2100.2.x.c 16 35.f even 4 2 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{11}^{2} + T_{11} - 14 \) acting on \(S_{2}^{\mathrm{new}}(2100, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( (T^{4} + 1)^{4} \) Copy content Toggle raw display
$5$ \( T^{16} \) Copy content Toggle raw display
$7$ \( T^{16} + 73 T^{12} + \cdots + 5764801 \) Copy content Toggle raw display
$11$ \( (T^{2} + T - 14)^{8} \) Copy content Toggle raw display
$13$ \( (T^{8} + 449 T^{4} + 38416)^{2} \) Copy content Toggle raw display
$17$ \( (T^{4} + 16)^{4} \) Copy content Toggle raw display
$19$ \( (T^{4} - 47 T^{2} + 196)^{4} \) Copy content Toggle raw display
$23$ \( (T^{8} + 521 T^{4} + 16)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 69 T^{2} + 36)^{4} \) Copy content Toggle raw display
$31$ \( (T^{4} + 11 T^{2} + 16)^{4} \) Copy content Toggle raw display
$37$ \( (T^{8} + 13977 T^{4} + 331776)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} + 176 T^{2} + 4096)^{4} \) Copy content Toggle raw display
$43$ \( (T^{8} + 3746 T^{4} + 2401)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} + 16)^{4} \) Copy content Toggle raw display
$53$ \( (T^{8} + 22784 T^{4} + 16777216)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} - 76)^{8} \) Copy content Toggle raw display
$61$ \( (T^{4} + 11 T^{2} + 16)^{4} \) Copy content Toggle raw display
$67$ \( (T^{4} + 361)^{4} \) Copy content Toggle raw display
$71$ \( (T^{2} - 11 T + 16)^{8} \) Copy content Toggle raw display
$73$ \( (T^{4} + 10000)^{4} \) Copy content Toggle raw display
$79$ \( (T^{4} + 257 T^{2} + 16384)^{4} \) Copy content Toggle raw display
$83$ \( (T^{8} + 75024 T^{4} + 331776)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} - 396 T^{2} + 20736)^{4} \) Copy content Toggle raw display
$97$ \( (T^{8} + 11201 T^{4} + 614656)^{2} \) Copy content Toggle raw display
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