Properties

Label 3872.2.c.i
Level $3872$
Weight $2$
Character orbit 3872.c
Analytic conductor $30.918$
Analytic rank $0$
Dimension $20$
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [3872,2,Mod(1937,3872)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3872, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3872.1937");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3872 = 2^{5} \cdot 11^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 3872.c (of order \(2\), degree \(1\), 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: \(30.9180756626\)
Analytic rank: \(0\)
Dimension: \(20\)
Coefficient field: \(\mathbb{Q}[x]/(x^{20} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{20} - x^{18} - 2 x^{16} - 2 x^{15} - 4 x^{14} - 4 x^{13} + 12 x^{12} + 16 x^{11} + 32 x^{9} + \cdots + 1024 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{12} \)
Twist minimal: no (minimal twist has level 88)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{19}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{9} q^{3} - \beta_{4} q^{5} + ( - \beta_{18} + 1) q^{7} + (\beta_{11} - 1) q^{9} + ( - \beta_{16} + \beta_{13} + \cdots + \beta_{6}) q^{13} + ( - \beta_{18} - \beta_{15} + \cdots - \beta_{7}) q^{15}+ \cdots + ( - \beta_{19} - 2 \beta_{14} + \cdots + 1) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 20 q + 10 q^{7} - 10 q^{9} + 4 q^{15} - 2 q^{17} + 4 q^{23} - 2 q^{25} - 2 q^{31} + 28 q^{39} + 2 q^{41} - 2 q^{47} - 2 q^{49} - 22 q^{57} - 30 q^{63} + 18 q^{65} + 34 q^{71} - 2 q^{73} - 58 q^{79} - 12 q^{81}+ \cdots + 10 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{20} - x^{18} - 2 x^{16} - 2 x^{15} - 4 x^{14} - 4 x^{13} + 12 x^{12} + 16 x^{11} + 32 x^{9} + \cdots + 1024 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{18} + 3 \nu^{16} + 10 \nu^{14} - 2 \nu^{13} - 12 \nu^{12} - 12 \nu^{11} + 12 \nu^{10} + \cdots - 1024 ) / 768 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( - 3 \nu^{19} + 10 \nu^{18} + 39 \nu^{17} + 30 \nu^{16} + 18 \nu^{15} - 86 \nu^{14} - 128 \nu^{13} + \cdots - 2560 ) / 12288 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 9 \nu^{19} + 34 \nu^{18} - 21 \nu^{17} - 90 \nu^{16} + 42 \nu^{15} - 62 \nu^{14} - 128 \nu^{13} + \cdots + 3584 ) / 12288 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 3 \nu^{19} + 2 \nu^{18} + 9 \nu^{17} + 6 \nu^{16} + 30 \nu^{15} + 14 \nu^{14} + 8 \nu^{13} + \cdots + 2560 ) / 3072 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 3 \nu^{19} + 2 \nu^{18} + 15 \nu^{17} + 6 \nu^{16} - 6 \nu^{15} + 26 \nu^{14} + 80 \nu^{13} + \cdots + 5632 ) / 3072 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( \nu^{19} + 2 \nu^{18} + 3 \nu^{17} + 6 \nu^{16} + 10 \nu^{15} + 18 \nu^{14} + 32 \nu^{13} + \cdots + 512 ) / 1024 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 11 \nu^{19} - 54 \nu^{18} - 81 \nu^{17} - 66 \nu^{16} + 34 \nu^{15} + 154 \nu^{14} + 288 \nu^{13} + \cdots + 26112 ) / 12288 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 11 \nu^{19} + 54 \nu^{18} - 15 \nu^{17} + 66 \nu^{16} + 62 \nu^{15} - 154 \nu^{14} - 96 \nu^{13} + \cdots - 26112 ) / 12288 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - 5 \nu^{19} + 6 \nu^{18} + \nu^{17} + 18 \nu^{16} + 30 \nu^{15} + 6 \nu^{14} + 52 \nu^{12} + \cdots + 2560 ) / 4096 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 13 \nu^{19} - 42 \nu^{18} + 9 \nu^{17} - 30 \nu^{16} - 82 \nu^{15} - 106 \nu^{14} + 384 \nu^{13} + \cdots + 23040 ) / 12288 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 5 \nu^{19} - 10 \nu^{18} - 31 \nu^{17} + 2 \nu^{16} - 2 \nu^{15} + 6 \nu^{14} + 160 \nu^{13} + \cdots + 6656 ) / 4096 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( - 7 \nu^{19} + 2 \nu^{18} - 5 \nu^{17} + 6 \nu^{16} - 54 \nu^{15} - 30 \nu^{14} - 68 \nu^{12} + \cdots - 8704 ) / 4096 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 21 \nu^{19} - 38 \nu^{18} + 15 \nu^{17} + 78 \nu^{16} - 30 \nu^{15} - 38 \nu^{14} - 128 \nu^{13} + \cdots + 9728 ) / 12288 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 23 \nu^{19} - 30 \nu^{18} - 21 \nu^{17} + 6 \nu^{16} + 10 \nu^{15} + 34 \nu^{14} + 192 \nu^{13} + \cdots + 19968 ) / 12288 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - \nu^{19} + 2 \nu^{18} + \nu^{17} - 2 \nu^{16} + 2 \nu^{15} - 2 \nu^{14} - 4 \nu^{12} - 20 \nu^{11} + \cdots - 512 ) / 512 \) Copy content Toggle raw display
\(\beta_{16}\)\(=\) \( ( - 3 \nu^{19} - 4 \nu^{18} + 3 \nu^{17} + 12 \nu^{16} + 6 \nu^{15} + 38 \nu^{14} + 68 \nu^{13} + \cdots + 1024 ) / 1536 \) Copy content Toggle raw display
\(\beta_{17}\)\(=\) \( ( - \nu^{19} - 2 \nu^{18} + \nu^{17} + 2 \nu^{16} + 2 \nu^{15} + 6 \nu^{14} + 8 \nu^{13} + 12 \nu^{12} + \cdots + 512 ) / 512 \) Copy content Toggle raw display
\(\beta_{18}\)\(=\) \( ( - \nu^{19} - \nu^{15} + 2 \nu^{14} + 6 \nu^{13} + 6 \nu^{12} + 12 \nu^{11} - 4 \nu^{10} - 12 \nu^{9} + \cdots + 384 ) / 384 \) Copy content Toggle raw display
\(\beta_{19}\)\(=\) \( ( - 4 \nu^{19} - 6 \nu^{18} - 3 \nu^{17} - 6 \nu^{16} + 5 \nu^{15} + 20 \nu^{14} + 36 \nu^{13} + \cdots + 2688 ) / 384 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{17} - \beta_{16} + \beta_{15} + \beta_{13} + \beta_{6} - \beta_{4} - \beta_{2} ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{17} - \beta_{16} - \beta_{15} - \beta_{13} + \beta_{6} - \beta_{4} + \beta_{2} ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{17} - \beta_{16} + \beta_{15} + \beta_{13} - 2 \beta_{9} + 2 \beta_{8} + 2 \beta_{7} + \cdots + 2 \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( \beta_{17} - \beta_{16} + \beta_{15} - 4 \beta_{14} + \beta_{13} + 4 \beta_{12} + 2 \beta_{9} - 2 \beta_{8} + \cdots + 4 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 4 \beta_{18} + \beta_{17} - \beta_{16} + \beta_{15} - 4 \beta_{14} + \beta_{13} + 4 \beta_{11} + \cdots + 2 \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( - 4 \beta_{18} + \beta_{17} - \beta_{16} + \beta_{15} + 8 \beta_{14} + \beta_{13} + 4 \beta_{12} + \cdots + 8 ) / 4 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 4 \beta_{18} + \beta_{17} - 9 \beta_{16} + \beta_{15} + 16 \beta_{14} + \beta_{13} + 4 \beta_{12} + \cdots - 2 \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 8 \beta_{19} - 4 \beta_{18} + \beta_{17} - 17 \beta_{16} - 7 \beta_{15} - 8 \beta_{14} + 9 \beta_{13} + \cdots + 6 \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( - 4 \beta_{18} + \beta_{17} - 9 \beta_{16} + \beta_{15} + 8 \beta_{14} + \beta_{13} + 4 \beta_{12} + \cdots - 24 ) / 4 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( 8 \beta_{19} - 4 \beta_{18} - 15 \beta_{17} - 17 \beta_{16} + \beta_{15} - 16 \beta_{14} + \beta_{13} + \cdots + 32 ) / 4 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 44 \beta_{18} - 15 \beta_{17} - 9 \beta_{16} + \beta_{15} + 8 \beta_{14} + 33 \beta_{13} + 20 \beta_{12} + \cdots - 56 ) / 4 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( - 8 \beta_{19} - 4 \beta_{18} - 15 \beta_{17} - 33 \beta_{16} - 15 \beta_{15} + 96 \beta_{14} + \cdots - 112 ) / 4 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 16 \beta_{19} - 20 \beta_{18} - 47 \beta_{17} + 7 \beta_{16} - 15 \beta_{15} + 56 \beta_{14} - 15 \beta_{13} + \cdots - 8 ) / 4 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 40 \beta_{19} + 28 \beta_{18} - 47 \beta_{17} - 49 \beta_{16} - 15 \beta_{15} - 112 \beta_{14} + \cdots + 86 \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 64 \beta_{19} - 84 \beta_{18} - 47 \beta_{17} + 23 \beta_{16} - 47 \beta_{15} - 24 \beta_{14} + \cdots - 152 ) / 4 \) Copy content Toggle raw display
\(\nu^{16}\)\(=\) \( ( - 40 \beta_{19} - 68 \beta_{18} - 111 \beta_{17} + 31 \beta_{16} - 143 \beta_{15} + 480 \beta_{14} + \cdots - 240 ) / 4 \) Copy content Toggle raw display
\(\nu^{17}\)\(=\) \( ( - 16 \beta_{19} + 76 \beta_{18} - 111 \beta_{17} + 39 \beta_{16} + 81 \beta_{15} + 88 \beta_{14} + \cdots - 328 ) / 4 \) Copy content Toggle raw display
\(\nu^{18}\)\(=\) \( ( - 56 \beta_{19} + 412 \beta_{18} - 303 \beta_{17} - 81 \beta_{16} - 79 \beta_{15} - 432 \beta_{14} + \cdots - 32 ) / 4 \) Copy content Toggle raw display
\(\nu^{19}\)\(=\) \( ( - 160 \beta_{19} - 532 \beta_{18} - 175 \beta_{17} + 183 \beta_{16} + 17 \beta_{15} - 184 \beta_{14} + \cdots - 440 ) / 4 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3872\mathbb{Z}\right)^\times\).

\(n\) \(485\) \(1695\) \(2785\)
\(\chi(n)\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1937.1
−0.343983 + 1.37174i
0.926370 + 1.06857i
−1.40720 0.140637i
0.651763 1.25507i
1.37876 0.314658i
−1.30820 0.537231i
1.39771 + 0.215430i
−0.549610 1.30305i
0.324509 1.37648i
−1.07012 0.924577i
−1.07012 + 0.924577i
0.324509 + 1.37648i
−0.549610 + 1.30305i
1.39771 0.215430i
−1.30820 + 0.537231i
1.37876 + 0.314658i
0.651763 + 1.25507i
−1.40720 + 0.140637i
0.926370 1.06857i
−0.343983 1.37174i
0 2.85679i 0 2.60791i 0 0.196362 0 −5.16127 0
1937.2 0 2.75783i 0 2.90574i 0 2.36352 0 −4.60564 0
1937.3 0 2.55485i 0 2.69541i 0 3.94908 0 −3.52726 0
1937.4 0 2.44793i 0 0.200474i 0 −2.34615 0 −2.99235 0
1937.5 0 1.87996i 0 0.493106i 0 0.174770 0 −0.534260 0
1937.6 0 1.28633i 0 1.58193i 0 −1.86825 0 1.34535 0
1937.7 0 0.868641i 0 3.67418i 0 −1.19528 0 2.24546 0
1937.8 0 0.612207i 0 1.46030i 0 4.42813 0 2.62520 0
1937.9 0 0.540427i 0 2.90090i 0 2.60451 0 2.70794 0
1937.10 0 0.321222i 0 1.28733i 0 −3.30669 0 2.89682 0
1937.11 0 0.321222i 0 1.28733i 0 −3.30669 0 2.89682 0
1937.12 0 0.540427i 0 2.90090i 0 2.60451 0 2.70794 0
1937.13 0 0.612207i 0 1.46030i 0 4.42813 0 2.62520 0
1937.14 0 0.868641i 0 3.67418i 0 −1.19528 0 2.24546 0
1937.15 0 1.28633i 0 1.58193i 0 −1.86825 0 1.34535 0
1937.16 0 1.87996i 0 0.493106i 0 0.174770 0 −0.534260 0
1937.17 0 2.44793i 0 0.200474i 0 −2.34615 0 −2.99235 0
1937.18 0 2.55485i 0 2.69541i 0 3.94908 0 −3.52726 0
1937.19 0 2.75783i 0 2.90574i 0 2.36352 0 −4.60564 0
1937.20 0 2.85679i 0 2.60791i 0 0.196362 0 −5.16127 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1937.20
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
8.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3872.2.c.i 20
4.b odd 2 1 968.2.c.i 20
8.b even 2 1 inner 3872.2.c.i 20
8.d odd 2 1 968.2.c.i 20
11.b odd 2 1 3872.2.c.h 20
11.d odd 10 2 352.2.w.a 40
44.c even 2 1 968.2.c.h 20
44.g even 10 2 88.2.o.a 40
44.g even 10 2 968.2.o.j 40
44.h odd 10 2 968.2.o.d 40
44.h odd 10 2 968.2.o.i 40
88.b odd 2 1 3872.2.c.h 20
88.g even 2 1 968.2.c.h 20
88.k even 10 2 88.2.o.a 40
88.k even 10 2 968.2.o.j 40
88.l odd 10 2 968.2.o.d 40
88.l odd 10 2 968.2.o.i 40
88.p odd 10 2 352.2.w.a 40
132.n odd 10 2 792.2.br.b 40
264.r odd 10 2 792.2.br.b 40
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
88.2.o.a 40 44.g even 10 2
88.2.o.a 40 88.k even 10 2
352.2.w.a 40 11.d odd 10 2
352.2.w.a 40 88.p odd 10 2
792.2.br.b 40 132.n odd 10 2
792.2.br.b 40 264.r odd 10 2
968.2.c.h 20 44.c even 2 1
968.2.c.h 20 88.g even 2 1
968.2.c.i 20 4.b odd 2 1
968.2.c.i 20 8.d odd 2 1
968.2.o.d 40 44.h odd 10 2
968.2.o.d 40 88.l odd 10 2
968.2.o.i 40 44.h odd 10 2
968.2.o.i 40 88.l odd 10 2
968.2.o.j 40 44.g even 10 2
968.2.o.j 40 88.k even 10 2
3872.2.c.h 20 11.b odd 2 1
3872.2.c.h 20 88.b odd 2 1
3872.2.c.i 20 1.a even 1 1 trivial
3872.2.c.i 20 8.b even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(3872, [\chi])\):

\( T_{3}^{20} + 35 T_{3}^{18} + 503 T_{3}^{16} + 3822 T_{3}^{14} + 16493 T_{3}^{12} + 40565 T_{3}^{10} + \cdots + 121 \) Copy content Toggle raw display
\( T_{5}^{20} + 51 T_{5}^{18} + 1082 T_{5}^{16} + 12427 T_{5}^{14} + 84082 T_{5}^{12} + 341655 T_{5}^{10} + \cdots + 4096 \) Copy content Toggle raw display
\( T_{7}^{10} - 5 T_{7}^{9} - 22 T_{7}^{8} + 111 T_{7}^{7} + 176 T_{7}^{6} - 775 T_{7}^{5} - 701 T_{7}^{4} + \cdots + 64 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{20} \) Copy content Toggle raw display
$3$ \( T^{20} + 35 T^{18} + \cdots + 121 \) Copy content Toggle raw display
$5$ \( T^{20} + 51 T^{18} + \cdots + 4096 \) Copy content Toggle raw display
$7$ \( (T^{10} - 5 T^{9} + \cdots + 64)^{2} \) Copy content Toggle raw display
$11$ \( T^{20} \) Copy content Toggle raw display
$13$ \( T^{20} + 119 T^{18} + \cdots + 5308416 \) Copy content Toggle raw display
$17$ \( (T^{10} + T^{9} + \cdots - 34029)^{2} \) Copy content Toggle raw display
$19$ \( T^{20} + 147 T^{18} + \cdots + 31036041 \) Copy content Toggle raw display
$23$ \( (T^{10} - 2 T^{9} + \cdots - 451584)^{2} \) Copy content Toggle raw display
$29$ \( T^{20} + \cdots + 527896576 \) Copy content Toggle raw display
$31$ \( (T^{10} + T^{9} + \cdots - 590144)^{2} \) Copy content Toggle raw display
$37$ \( T^{20} + \cdots + 478554034176 \) Copy content Toggle raw display
$41$ \( (T^{10} - T^{9} + \cdots + 685431)^{2} \) Copy content Toggle raw display
$43$ \( T^{20} + \cdots + 258242846976 \) Copy content Toggle raw display
$47$ \( (T^{10} + T^{9} + \cdots + 251136)^{2} \) Copy content Toggle raw display
$53$ \( T^{20} + \cdots + 4813029376 \) Copy content Toggle raw display
$59$ \( T^{20} + \cdots + 91511695081 \) Copy content Toggle raw display
$61$ \( T^{20} + \cdots + 47\!\cdots\!96 \) Copy content Toggle raw display
$67$ \( T^{20} + \cdots + 22416209899776 \) Copy content Toggle raw display
$71$ \( (T^{10} - 17 T^{9} + \cdots - 2283264)^{2} \) Copy content Toggle raw display
$73$ \( (T^{10} + T^{9} + \cdots + 4889699)^{2} \) Copy content Toggle raw display
$79$ \( (T^{10} + 29 T^{9} + \cdots + 36844544)^{2} \) Copy content Toggle raw display
$83$ \( T^{20} + \cdots + 17926799881 \) Copy content Toggle raw display
$89$ \( (T^{10} + 4 T^{9} + \cdots - 6007233744)^{2} \) Copy content Toggle raw display
$97$ \( (T^{10} - 5 T^{9} + \cdots - 140501)^{2} \) Copy content Toggle raw display
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