Properties

Label 160.4.f.a
Level $160$
Weight $4$
Character orbit 160.f
Analytic conductor $9.440$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [160,4,Mod(49,160)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(160, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 1]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("160.49");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 160 = 2^{5} \cdot 5 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 160.f (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: \(9.44030560092\)
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: \( x^{16} - 2x^{14} + 44x^{12} + 400x^{10} - 3200x^{8} + 25600x^{6} + 180224x^{4} - 524288x^{2} + 16777216 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{40}\cdot 3^{2} \)
Twist minimal: no (minimal twist has level 40)
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.

\(f(q)\) \(=\) \( q + \beta_{8} q^{3} + \beta_{6} q^{5} - \beta_{9} q^{7} + ( - \beta_1 + 6) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{8} q^{3} + \beta_{6} q^{5} - \beta_{9} q^{7} + ( - \beta_1 + 6) q^{9} + \beta_{3} q^{11} + ( - \beta_{11} + \beta_{8}) q^{13} + ( - \beta_{13} + 4) q^{15} + ( - \beta_{15} - \beta_{13} + \beta_{9}) q^{17} + ( - \beta_{7} - \beta_{6} + \beta_{5}) q^{19} + (\beta_{4} + \beta_{3}) q^{21} + ( - 2 \beta_{15} - \beta_{14} + \cdots - 1) q^{23}+ \cdots + (59 \beta_{7} + 59 \beta_{6} + \cdots - 4 \beta_{3}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 104 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 104 q^{9} + 56 q^{15} - 24 q^{25} + 112 q^{31} + 736 q^{39} + 232 q^{41} - 200 q^{49} - 392 q^{55} - 600 q^{65} - 2096 q^{71} - 2992 q^{79} - 728 q^{81} - 208 q^{89} + 1064 q^{95}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 2x^{14} + 44x^{12} + 400x^{10} - 3200x^{8} + 25600x^{6} + 180224x^{4} - 524288x^{2} + 16777216 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 3\nu^{14} - 22\nu^{12} - 92\nu^{10} + 1008\nu^{8} - 10880\nu^{6} + 58368\nu^{4} + 753664\nu^{2} - 4325376 ) / 131072 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{14} + 2\nu^{12} - 44\nu^{10} - 400\nu^{8} + 3200\nu^{6} - 25600\nu^{4} + 81920\nu^{2} + 393216 ) / 32768 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -3\nu^{14} - 58\nu^{12} - 4\nu^{10} + 80\nu^{8} - 24192\nu^{6} + 46080\nu^{4} - 802816\nu^{2} - 16515072 ) / 131072 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - 3 \nu^{14} - 586 \nu^{12} + 1308 \nu^{10} + 13200 \nu^{8} - 281472 \nu^{6} + 1264640 \nu^{4} + \cdots - 164102144 ) / 917504 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 29 \nu^{14} + 662 \nu^{12} - 1444 \nu^{10} + 13072 \nu^{8} + 122496 \nu^{6} - 402432 \nu^{4} + \cdots + 134217728 ) / 917504 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 39 \nu^{15} - 80 \nu^{14} - 114 \nu^{13} - 992 \nu^{12} + 204 \nu^{11} + 832 \nu^{10} + \cdots - 270532608 ) / 14680064 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 39 \nu^{15} - 80 \nu^{14} + 114 \nu^{13} - 992 \nu^{12} - 204 \nu^{11} + 832 \nu^{10} + \cdots - 270532608 ) / 14680064 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 69 \nu^{15} - 150 \nu^{13} + 1636 \nu^{11} - 23888 \nu^{9} + 40064 \nu^{7} + \cdots - 34603008 \nu ) / 14680064 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 11 \nu^{15} - 182 \nu^{13} - 220 \nu^{11} + 7600 \nu^{9} - 95104 \nu^{7} + 89088 \nu^{5} + \cdots - 50331648 \nu ) / 2097152 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( \nu^{15} - 2\nu^{13} + 44\nu^{11} + 400\nu^{9} - 3200\nu^{7} + 25600\nu^{5} + 180224\nu^{3} + 1572864\nu ) / 131072 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 17 \nu^{15} - 66 \nu^{13} - 212 \nu^{11} - 752 \nu^{9} - 30336 \nu^{7} + 160768 \nu^{5} + \cdots - 3145728 \nu ) / 2097152 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( - 121 \nu^{15} + 146 \nu^{13} - 6156 \nu^{11} - 42384 \nu^{9} + 221824 \nu^{7} + \cdots + 238026752 \nu ) / 14680064 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 15 \nu^{15} - 176 \nu^{14} + 510 \nu^{13} + 608 \nu^{12} + 428 \nu^{11} + 4032 \nu^{10} + \cdots + 171966464 ) / 2097152 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 15 \nu^{15} - 176 \nu^{14} - 510 \nu^{13} + 608 \nu^{12} - 428 \nu^{11} + 4032 \nu^{10} + \cdots + 169869312 ) / 2097152 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - \nu^{15} + 11 \nu^{14} + 14 \nu^{13} - 38 \nu^{12} - 4 \nu^{11} - 252 \nu^{10} - 1024 \nu^{9} + \cdots - 10747904 ) / 131072 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{12} + \beta_{10} + \beta_{8} + \beta_{7} - \beta_{6} ) / 32 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{7} - \beta_{6} + \beta_{4} - \beta_{3} + \beta_{2} + 4 ) / 16 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -2\beta_{15} - 2\beta_{14} + 2\beta_{11} - \beta_{10} + 2\beta_{9} + 2\beta_{8} - 2\beta_{7} + 2\beta_{6} - 2 ) / 8 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 2 \beta_{14} + 2 \beta_{13} + 9 \beta_{7} + 9 \beta_{6} + 2 \beta_{5} + \beta_{4} - 3 \beta_{3} + \cdots - 78 ) / 8 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( - 4 \beta_{15} + 4 \beta_{14} - 8 \beta_{13} - 5 \beta_{12} + 4 \beta_{11} + 5 \beta_{10} - 44 \beta_{9} + \cdots + 4 ) / 8 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( - \beta_{14} - \beta_{13} + 34 \beta_{7} + 34 \beta_{6} - 5 \beta_{5} - 3 \beta_{4} - 16 \beta_{3} + \cdots - 363 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 40 \beta_{15} - 40 \beta_{13} - 7 \beta_{12} + 8 \beta_{11} - 55 \beta_{10} - 136 \beta_{9} + \cdots - 193 \beta_{6} ) / 4 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( - 24 \beta_{14} - 24 \beta_{13} + 291 \beta_{7} + 291 \beta_{6} + 32 \beta_{5} - 19 \beta_{4} + \cdots + 3132 ) / 2 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( - 58 \beta_{15} - 18 \beta_{14} - 40 \beta_{13} + 28 \beta_{12} - 214 \beta_{11} + 31 \beta_{10} + \cdots - 18 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( - 38 \beta_{14} - 38 \beta_{13} - 339 \beta_{7} - 339 \beta_{6} - 150 \beta_{5} + 261 \beta_{4} + \cdots - 118 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( - 276 \beta_{15} - 524 \beta_{14} + 248 \beta_{13} - 801 \beta_{12} + 84 \beta_{11} + 369 \beta_{10} + \cdots - 524 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 428 \beta_{14} + 428 \beta_{13} - 3560 \beta_{7} - 3560 \beta_{6} + 1820 \beta_{5} + 340 \beta_{4} + \cdots - 172380 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( 2608 \beta_{15} - 448 \beta_{14} + 3056 \beta_{13} - 7718 \beta_{12} - 4208 \beta_{11} - 1702 \beta_{10} + \cdots - 448 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( - 672 \beta_{14} - 672 \beta_{13} - 29924 \beta_{7} - 29924 \beta_{6} - 10560 \beta_{5} - 9884 \beta_{4} + \cdots - 883472 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( 66416 \beta_{15} + 61616 \beta_{14} + 4800 \beta_{13} - 30144 \beta_{12} + 22032 \beta_{11} + \cdots + 61616 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/160\mathbb{Z}\right)^\times\).

\(n\) \(31\) \(97\) \(101\)
\(\chi(n)\) \(1\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
49.1
−2.15123 1.83636i
−2.15123 + 1.83636i
2.07496 1.92212i
2.07496 + 1.92212i
0.407618 + 2.79890i
0.407618 2.79890i
2.72041 0.774197i
2.72041 + 0.774197i
−2.72041 + 0.774197i
−2.72041 0.774197i
−0.407618 2.79890i
−0.407618 + 2.79890i
−2.07496 + 1.92212i
−2.07496 1.92212i
2.15123 + 1.83636i
2.15123 1.83636i
0 −8.63004 0 2.63740 10.8648i 0 4.74133i 0 47.4777 0
49.2 0 −8.63004 0 2.63740 + 10.8648i 0 4.74133i 0 47.4777 0
49.3 0 −6.67494 0 −11.1461 0.874848i 0 29.8250i 0 17.5548 0
49.4 0 −6.67494 0 −11.1461 + 0.874848i 0 29.8250i 0 17.5548 0
49.5 0 −3.86846 0 9.66751 5.61599i 0 9.16068i 0 −12.0350 0
49.6 0 −3.86846 0 9.66751 + 5.61599i 0 9.16068i 0 −12.0350 0
49.7 0 −0.0507699 0 4.72745 10.1317i 0 20.6415i 0 −26.9974 0
49.8 0 −0.0507699 0 4.72745 + 10.1317i 0 20.6415i 0 −26.9974 0
49.9 0 0.0507699 0 −4.72745 10.1317i 0 20.6415i 0 −26.9974 0
49.10 0 0.0507699 0 −4.72745 + 10.1317i 0 20.6415i 0 −26.9974 0
49.11 0 3.86846 0 −9.66751 5.61599i 0 9.16068i 0 −12.0350 0
49.12 0 3.86846 0 −9.66751 + 5.61599i 0 9.16068i 0 −12.0350 0
49.13 0 6.67494 0 11.1461 0.874848i 0 29.8250i 0 17.5548 0
49.14 0 6.67494 0 11.1461 + 0.874848i 0 29.8250i 0 17.5548 0
49.15 0 8.63004 0 −2.63740 10.8648i 0 4.74133i 0 47.4777 0
49.16 0 8.63004 0 −2.63740 + 10.8648i 0 4.74133i 0 47.4777 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 49.16
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 160.4.f.a 16
3.b odd 2 1 1440.4.d.d 16
4.b odd 2 1 40.4.f.a 16
5.b even 2 1 inner 160.4.f.a 16
5.c odd 4 2 800.4.d.e 16
8.b even 2 1 inner 160.4.f.a 16
8.d odd 2 1 40.4.f.a 16
12.b even 2 1 360.4.d.d 16
15.d odd 2 1 1440.4.d.d 16
20.d odd 2 1 40.4.f.a 16
20.e even 4 2 200.4.d.e 16
24.f even 2 1 360.4.d.d 16
24.h odd 2 1 1440.4.d.d 16
40.e odd 2 1 40.4.f.a 16
40.f even 2 1 inner 160.4.f.a 16
40.i odd 4 2 800.4.d.e 16
40.k even 4 2 200.4.d.e 16
60.h even 2 1 360.4.d.d 16
120.i odd 2 1 1440.4.d.d 16
120.m even 2 1 360.4.d.d 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
40.4.f.a 16 4.b odd 2 1
40.4.f.a 16 8.d odd 2 1
40.4.f.a 16 20.d odd 2 1
40.4.f.a 16 40.e odd 2 1
160.4.f.a 16 1.a even 1 1 trivial
160.4.f.a 16 5.b even 2 1 inner
160.4.f.a 16 8.b even 2 1 inner
160.4.f.a 16 40.f even 2 1 inner
200.4.d.e 16 20.e even 4 2
200.4.d.e 16 40.k even 4 2
360.4.d.d 16 12.b even 2 1
360.4.d.d 16 24.f even 2 1
360.4.d.d 16 60.h even 2 1
360.4.d.d 16 120.m even 2 1
800.4.d.e 16 5.c odd 4 2
800.4.d.e 16 40.i odd 4 2
1440.4.d.d 16 3.b odd 2 1
1440.4.d.d 16 15.d odd 2 1
1440.4.d.d 16 24.h odd 2 1
1440.4.d.d 16 120.i odd 2 1

Hecke kernels

This newform subspace is the entire newspace \(S_{4}^{\mathrm{new}}(160, [\chi])\).

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( (T^{8} - 134 T^{6} + \cdots + 128)^{2} \) Copy content Toggle raw display
$5$ \( T^{16} + \cdots + 59\!\cdots\!25 \) Copy content Toggle raw display
$7$ \( (T^{8} + 1422 T^{6} + \cdots + 714987936)^{2} \) Copy content Toggle raw display
$11$ \( (T^{8} + \cdots + 2238493420800)^{2} \) Copy content Toggle raw display
$13$ \( (T^{8} + \cdots + 9784472371200)^{2} \) Copy content Toggle raw display
$17$ \( (T^{8} + \cdots + 12119907631104)^{2} \) Copy content Toggle raw display
$19$ \( (T^{8} + 28704 T^{6} + \cdots + 38178047232)^{2} \) Copy content Toggle raw display
$23$ \( (T^{8} + \cdots + 23\!\cdots\!96)^{2} \) Copy content Toggle raw display
$29$ \( (T^{8} + \cdots + 58\!\cdots\!00)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} - 28 T^{3} + \cdots + 400132096)^{4} \) Copy content Toggle raw display
$37$ \( (T^{8} + \cdots + 930111561566208)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} - 58 T^{3} + \cdots + 2763694080)^{4} \) Copy content Toggle raw display
$43$ \( (T^{8} - 111062 T^{6} + \cdots + 542115358848)^{2} \) Copy content Toggle raw display
$47$ \( (T^{8} + \cdots + 21\!\cdots\!64)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} + \cdots + 27\!\cdots\!48)^{2} \) Copy content Toggle raw display
$59$ \( (T^{8} + \cdots + 43\!\cdots\!48)^{2} \) Copy content Toggle raw display
$61$ \( (T^{8} + \cdots + 18\!\cdots\!00)^{2} \) Copy content Toggle raw display
$67$ \( (T^{8} + \cdots + 13\!\cdots\!68)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} + 524 T^{3} + \cdots - 30115911168)^{4} \) Copy content Toggle raw display
$73$ \( (T^{8} + \cdots + 68\!\cdots\!04)^{2} \) Copy content Toggle raw display
$79$ \( (T^{4} + 748 T^{3} + \cdots + 45513395200)^{4} \) Copy content Toggle raw display
$83$ \( (T^{8} + \cdots + 39\!\cdots\!48)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} + 52 T^{3} + \cdots - 4266435600)^{4} \) Copy content Toggle raw display
$97$ \( (T^{8} + \cdots + 22\!\cdots\!44)^{2} \) Copy content Toggle raw display
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