Properties

Label 2400.2.b.i
Level $2400$
Weight $2$
Character orbit 2400.b
Analytic conductor $19.164$
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] = [2400,2,Mod(2351,2400)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2400, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1, 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("2400.2351");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2400 = 2^{5} \cdot 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2400.b (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: \(19.1640964851\)
Analytic rank: \(0\)
Dimension: \(16\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} + \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} + 24x^{14} + 192x^{12} + 672x^{10} + 1092x^{8} + 880x^{6} + 352x^{4} + 64x^{2} + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{23}]\)
Coefficient ring index: \( 2^{19} \)
Twist minimal: no (minimal twist has level 120)
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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{5} q^{3} - \beta_{15} q^{7} + ( - \beta_{13} + \beta_{8} + 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{5} q^{3} - \beta_{15} q^{7} + ( - \beta_{13} + \beta_{8} + 1) q^{9} + (\beta_{13} - \beta_{7}) q^{11} - \beta_{9} q^{13} + ( - \beta_{14} - \beta_{5} + \beta_{4}) q^{17} + (\beta_{8} - 2) q^{19} + (\beta_{11} - 2 \beta_{10}) q^{21} + \beta_{3} q^{23} + ( - \beta_{14} + \beta_{6} + \cdots + \beta_{4}) q^{27}+ \cdots + ( - \beta_{13} - 2 \beta_{8} + \cdots + 4) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 16 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 16 q^{9} - 32 q^{19} - 16 q^{49} - 32 q^{51} - 48 q^{81} + 64 q^{91} + 64 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} + 24x^{14} + 192x^{12} + 672x^{10} + 1092x^{8} + 880x^{6} + 352x^{4} + 64x^{2} + 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -\nu^{14} - 20\nu^{12} - 100\nu^{10} + 4\nu^{8} + 918\nu^{6} + 1440\nu^{4} + 664\nu^{2} + 72 ) / 8 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -3\nu^{14} - 69\nu^{12} - 506\nu^{10} - 1488\nu^{8} - 1638\nu^{6} - 594\nu^{4} - 36\nu^{2} - 8 ) / 4 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -7\nu^{14} - 164\nu^{12} - 1250\nu^{10} - 3984\nu^{8} - 5334\nu^{6} - 3024\nu^{4} - 596\nu^{2} - 16 ) / 8 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - 15 \nu^{14} - 3 \nu^{13} - 352 \nu^{12} - 69 \nu^{11} - 2692 \nu^{10} - 506 \nu^{9} - 8638 \nu^{8} + \cdots - 76 ) / 16 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 15 \nu^{14} + 3 \nu^{13} - 352 \nu^{12} + 69 \nu^{11} - 2692 \nu^{10} + 506 \nu^{9} - 8638 \nu^{8} + \cdots - 76 ) / 16 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 27 \nu^{14} - 3 \nu^{13} - 636 \nu^{12} - 69 \nu^{11} - 4904 \nu^{10} - 506 \nu^{9} - 16030 \nu^{8} + \cdots - 428 ) / 16 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 5 \nu^{15} + 12 \nu^{14} - 110 \nu^{13} + 282 \nu^{12} - 728 \nu^{11} + 2164 \nu^{10} - 1625 \nu^{9} + \cdots + 136 ) / 8 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 6\nu^{14} + 141\nu^{12} + 1082\nu^{10} + 3502\nu^{8} + 4876\nu^{6} + 3046\nu^{4} + 804\nu^{2} + 68 ) / 2 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( -11\nu^{15} - 260\nu^{13} - 2018\nu^{11} - 6672\nu^{9} - 9702\nu^{7} - 6544\nu^{5} - 2004\nu^{3} - 272\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( -11\nu^{15} - 261\nu^{13} - 2042\nu^{11} - 6862\nu^{9} - 10334\nu^{7} - 7410\nu^{5} - 2412\nu^{3} - 252\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 11 \nu^{15} + 8 \nu^{14} - 258 \nu^{13} + 192 \nu^{12} - 1971 \nu^{11} + 1534 \nu^{10} - 6311 \nu^{9} + \cdots + 164 ) / 8 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 11 \nu^{15} + 8 \nu^{14} + 258 \nu^{13} + 192 \nu^{12} + 1971 \nu^{11} + 1534 \nu^{10} + 6311 \nu^{9} + \cdots + 164 ) / 8 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 11 \nu^{15} + 12 \nu^{14} - 261 \nu^{13} + 282 \nu^{12} - 2040 \nu^{11} + 2164 \nu^{10} - 6817 \nu^{9} + \cdots + 136 ) / 8 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( -19\nu^{15} - 451\nu^{13} - 3529\nu^{11} - 11832\nu^{9} - 17582\nu^{7} - 11966\nu^{5} - 3498\nu^{3} - 344\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 38\nu^{15} + 896\nu^{13} + 6921\nu^{11} + 22674\nu^{9} + 32332\nu^{7} + 20960\nu^{5} + 5842\nu^{3} + 540\nu ) / 8 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -2\beta_{13} - \beta_{12} + \beta_{11} + \beta_{8} - 2\beta_{5} + 2\beta_{4} ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{8} + \beta_{6} + 2\beta_{5} + \beta_{4} - \beta_{3} - \beta_{2} + \beta _1 - 6 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( - 3 \beta_{15} - 2 \beta_{14} + 8 \beta_{13} + 4 \beta_{12} - 4 \beta_{11} - 3 \beta_{10} + \cdots - 9 \beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 4 \beta_{12} + 4 \beta_{11} - 13 \beta_{8} - 12 \beta_{6} - 20 \beta_{5} - 8 \beta_{4} + 12 \beta_{3} + \cdots + 48 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 50 \beta_{15} + 31 \beta_{14} - 83 \beta_{13} - 47 \beta_{12} + 47 \beta_{11} + 55 \beta_{10} + \cdots + 95 \beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( - 67 \beta_{12} - 67 \beta_{11} + 161 \beta_{8} + 144 \beta_{6} + 218 \beta_{5} + 74 \beta_{4} + \cdots - 504 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 672 \beta_{15} - 413 \beta_{14} + 956 \beta_{13} + 571 \beta_{12} - 571 \beta_{11} + \cdots - 1091 \beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( 450 \beta_{12} + 450 \beta_{11} - 990 \beta_{8} - 876 \beta_{6} - 1272 \beta_{5} - 396 \beta_{4} + \cdots + 2910 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 8496 \beta_{15} + 5220 \beta_{14} - 11446 \beta_{13} - 6971 \beta_{12} + 6971 \beta_{11} + \cdots + 13034 \beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( - 5688 \beta_{12} - 5688 \beta_{11} + 12147 \beta_{8} + 10707 \beta_{6} + 15294 \beta_{5} + \cdots - 34858 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( - 52613 \beta_{15} - 32346 \beta_{14} + 69508 \beta_{13} + 42622 \beta_{12} - 42622 \beta_{11} + \cdots - 79079 \beta_{4} \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 70448 \beta_{12} + 70448 \beta_{11} - 148879 \beta_{8} - 131044 \beta_{6} - 186020 \beta_{5} + \cdots + 423384 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( 646906 \beta_{15} + 397897 \beta_{14} - 848621 \beta_{13} - 521589 \beta_{12} + 521589 \beta_{11} + \cdots + 965133 \beta_{4} \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( - 866233 \beta_{12} - 866233 \beta_{11} + 1823791 \beta_{8} + 1604464 \beta_{6} + 2272238 \beta_{5} + \cdots - 5168936 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( - 7933264 \beta_{15} - 4880807 \beta_{14} + 10380392 \beta_{13} + 6385193 \beta_{12} + \cdots - 11804009 \beta_{4} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2400\mathbb{Z}\right)^\times\).

\(n\) \(577\) \(901\) \(1601\) \(1951\)
\(\chi(n)\) \(1\) \(-1\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
2351.1
1.05636i
0.357857i
0.357857i
1.05636i
0.528036i
0.886177i
0.886177i
0.528036i
2.08509i
3.49930i
3.49930i
2.08509i
2.13875i
0.724535i
0.724535i
2.13875i
0 −1.64533 0.541196i 0 0 0 3.29066i 0 2.41421 + 1.78089i 0
2351.2 0 −1.64533 0.541196i 0 0 0 3.29066i 0 2.41421 + 1.78089i 0
2351.3 0 −1.64533 + 0.541196i 0 0 0 3.29066i 0 2.41421 1.78089i 0
2351.4 0 −1.64533 + 0.541196i 0 0 0 3.29066i 0 2.41421 1.78089i 0
2351.5 0 −1.13705 1.30656i 0 0 0 2.27411i 0 −0.414214 + 2.97127i 0
2351.6 0 −1.13705 1.30656i 0 0 0 2.27411i 0 −0.414214 + 2.97127i 0
2351.7 0 −1.13705 + 1.30656i 0 0 0 2.27411i 0 −0.414214 2.97127i 0
2351.8 0 −1.13705 + 1.30656i 0 0 0 2.27411i 0 −0.414214 2.97127i 0
2351.9 0 1.13705 1.30656i 0 0 0 2.27411i 0 −0.414214 2.97127i 0
2351.10 0 1.13705 1.30656i 0 0 0 2.27411i 0 −0.414214 2.97127i 0
2351.11 0 1.13705 + 1.30656i 0 0 0 2.27411i 0 −0.414214 + 2.97127i 0
2351.12 0 1.13705 + 1.30656i 0 0 0 2.27411i 0 −0.414214 + 2.97127i 0
2351.13 0 1.64533 0.541196i 0 0 0 3.29066i 0 2.41421 1.78089i 0
2351.14 0 1.64533 0.541196i 0 0 0 3.29066i 0 2.41421 1.78089i 0
2351.15 0 1.64533 + 0.541196i 0 0 0 3.29066i 0 2.41421 + 1.78089i 0
2351.16 0 1.64533 + 0.541196i 0 0 0 3.29066i 0 2.41421 + 1.78089i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 2351.16
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
5.b even 2 1 inner
8.d odd 2 1 inner
15.d odd 2 1 inner
24.f even 2 1 inner
40.e odd 2 1 inner
120.m even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2400.2.b.i 16
3.b odd 2 1 inner 2400.2.b.i 16
4.b odd 2 1 600.2.b.i 16
5.b even 2 1 inner 2400.2.b.i 16
5.c odd 4 2 480.2.m.b 16
8.b even 2 1 600.2.b.i 16
8.d odd 2 1 inner 2400.2.b.i 16
12.b even 2 1 600.2.b.i 16
15.d odd 2 1 inner 2400.2.b.i 16
15.e even 4 2 480.2.m.b 16
20.d odd 2 1 600.2.b.i 16
20.e even 4 2 120.2.m.b 16
24.f even 2 1 inner 2400.2.b.i 16
24.h odd 2 1 600.2.b.i 16
40.e odd 2 1 inner 2400.2.b.i 16
40.f even 2 1 600.2.b.i 16
40.i odd 4 2 120.2.m.b 16
40.k even 4 2 480.2.m.b 16
60.h even 2 1 600.2.b.i 16
60.l odd 4 2 120.2.m.b 16
120.i odd 2 1 600.2.b.i 16
120.m even 2 1 inner 2400.2.b.i 16
120.q odd 4 2 480.2.m.b 16
120.w even 4 2 120.2.m.b 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
120.2.m.b 16 20.e even 4 2
120.2.m.b 16 40.i odd 4 2
120.2.m.b 16 60.l odd 4 2
120.2.m.b 16 120.w even 4 2
480.2.m.b 16 5.c odd 4 2
480.2.m.b 16 15.e even 4 2
480.2.m.b 16 40.k even 4 2
480.2.m.b 16 120.q odd 4 2
600.2.b.i 16 4.b odd 2 1
600.2.b.i 16 8.b even 2 1
600.2.b.i 16 12.b even 2 1
600.2.b.i 16 20.d odd 2 1
600.2.b.i 16 24.h odd 2 1
600.2.b.i 16 40.f even 2 1
600.2.b.i 16 60.h even 2 1
600.2.b.i 16 120.i odd 2 1
2400.2.b.i 16 1.a even 1 1 trivial
2400.2.b.i 16 3.b odd 2 1 inner
2400.2.b.i 16 5.b even 2 1 inner
2400.2.b.i 16 8.d odd 2 1 inner
2400.2.b.i 16 15.d odd 2 1 inner
2400.2.b.i 16 24.f even 2 1 inner
2400.2.b.i 16 40.e odd 2 1 inner
2400.2.b.i 16 120.m 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 \(S_{2}^{\mathrm{new}}(2400, [\chi])\):

\( T_{7}^{4} + 16T_{7}^{2} + 56 \) Copy content Toggle raw display
\( T_{11}^{4} + 24T_{11}^{2} + 112 \) Copy content Toggle raw display
\( T_{23}^{4} - 8T_{23}^{2} + 8 \) Copy content Toggle raw display
\( T_{43}^{4} - 112T_{43}^{2} + 2744 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( (T^{8} - 4 T^{6} + 14 T^{4} + \cdots + 81)^{2} \) Copy content Toggle raw display
$5$ \( T^{16} \) Copy content Toggle raw display
$7$ \( (T^{4} + 16 T^{2} + 56)^{4} \) Copy content Toggle raw display
$11$ \( (T^{4} + 24 T^{2} + 112)^{4} \) Copy content Toggle raw display
$13$ \( (T^{4} + 32 T^{2} + 224)^{4} \) Copy content Toggle raw display
$17$ \( (T^{4} + 16 T^{2} + 32)^{4} \) Copy content Toggle raw display
$19$ \( (T^{2} + 4 T - 4)^{8} \) Copy content Toggle raw display
$23$ \( (T^{4} - 8 T^{2} + 8)^{4} \) Copy content Toggle raw display
$29$ \( (T^{4} - 40 T^{2} + 112)^{4} \) Copy content Toggle raw display
$31$ \( (T^{4} + 48 T^{2} + 64)^{4} \) Copy content Toggle raw display
$37$ \( (T^{4} + 64 T^{2} + 224)^{4} \) Copy content Toggle raw display
$41$ \( (T^{4} + 80 T^{2} + 448)^{4} \) Copy content Toggle raw display
$43$ \( (T^{4} - 112 T^{2} + 2744)^{4} \) Copy content Toggle raw display
$47$ \( (T^{4} - 8 T^{2} + 8)^{4} \) Copy content Toggle raw display
$53$ \( (T^{4} - 144 T^{2} + 2592)^{4} \) Copy content Toggle raw display
$59$ \( (T^{4} + 24 T^{2} + 112)^{4} \) Copy content Toggle raw display
$61$ \( (T^{2} + 72)^{8} \) Copy content Toggle raw display
$67$ \( (T^{4} - 16 T^{2} + 56)^{4} \) Copy content Toggle raw display
$71$ \( (T^{4} - 192 T^{2} + 7168)^{4} \) Copy content Toggle raw display
$73$ \( (T^{4} - 64 T^{2} + 896)^{4} \) Copy content Toggle raw display
$79$ \( (T^{4} + 272 T^{2} + 64)^{4} \) Copy content Toggle raw display
$83$ \( (T^{4} + 136 T^{2} + 4232)^{4} \) Copy content Toggle raw display
$89$ \( (T^{4} + 96 T^{2} + 1792)^{4} \) Copy content Toggle raw display
$97$ \( (T^{4} - 128 T^{2} + 896)^{4} \) Copy content Toggle raw display
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