Properties

Label 147.4.e.c
Level $147$
Weight $4$
Character orbit 147.e
Analytic conductor $8.673$
Analytic rank $0$
Dimension $2$
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] = [147,4,Mod(67,147)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(147, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 4]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("147.67");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 147 = 3 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 147.e (of order \(3\), degree \(2\), 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: \(8.67328077084\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-3}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 21)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 primitive root of unity \(\zeta_{6}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - 4 \zeta_{6} q^{2} + ( - 3 \zeta_{6} + 3) q^{3} + (8 \zeta_{6} - 8) q^{4} + 4 \zeta_{6} q^{5} - 12 q^{6} - 9 \zeta_{6} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - 4 \zeta_{6} q^{2} + ( - 3 \zeta_{6} + 3) q^{3} + (8 \zeta_{6} - 8) q^{4} + 4 \zeta_{6} q^{5} - 12 q^{6} - 9 \zeta_{6} q^{9} + ( - 16 \zeta_{6} + 16) q^{10} + (62 \zeta_{6} - 62) q^{11} + 24 \zeta_{6} q^{12} - 62 q^{13} + 12 q^{15} + 64 \zeta_{6} q^{16} + (84 \zeta_{6} - 84) q^{17} + (36 \zeta_{6} - 36) q^{18} - 100 \zeta_{6} q^{19} - 32 q^{20} + 248 q^{22} + 42 \zeta_{6} q^{23} + ( - 109 \zeta_{6} + 109) q^{25} + 248 \zeta_{6} q^{26} - 27 q^{27} - 10 q^{29} - 48 \zeta_{6} q^{30} + ( - 48 \zeta_{6} + 48) q^{31} + ( - 256 \zeta_{6} + 256) q^{32} + 186 \zeta_{6} q^{33} + 336 q^{34} + 72 q^{36} + 246 \zeta_{6} q^{37} + (400 \zeta_{6} - 400) q^{38} + (186 \zeta_{6} - 186) q^{39} - 248 q^{41} + 68 q^{43} - 496 \zeta_{6} q^{44} + ( - 36 \zeta_{6} + 36) q^{45} + ( - 168 \zeta_{6} + 168) q^{46} - 324 \zeta_{6} q^{47} + 192 q^{48} - 436 q^{50} + 252 \zeta_{6} q^{51} + ( - 496 \zeta_{6} + 496) q^{52} + (258 \zeta_{6} - 258) q^{53} + 108 \zeta_{6} q^{54} - 248 q^{55} - 300 q^{57} + 40 \zeta_{6} q^{58} + (120 \zeta_{6} - 120) q^{59} + (96 \zeta_{6} - 96) q^{60} - 622 \zeta_{6} q^{61} - 192 q^{62} - 512 q^{64} - 248 \zeta_{6} q^{65} + ( - 744 \zeta_{6} + 744) q^{66} + (904 \zeta_{6} - 904) q^{67} - 672 \zeta_{6} q^{68} + 126 q^{69} - 678 q^{71} + ( - 642 \zeta_{6} + 642) q^{73} + ( - 984 \zeta_{6} + 984) q^{74} - 327 \zeta_{6} q^{75} + 800 q^{76} + 744 q^{78} - 740 \zeta_{6} q^{79} + (256 \zeta_{6} - 256) q^{80} + (81 \zeta_{6} - 81) q^{81} + 992 \zeta_{6} q^{82} + 468 q^{83} - 336 q^{85} - 272 \zeta_{6} q^{86} + (30 \zeta_{6} - 30) q^{87} - 200 \zeta_{6} q^{89} - 144 q^{90} - 336 q^{92} - 144 \zeta_{6} q^{93} + (1296 \zeta_{6} - 1296) q^{94} + ( - 400 \zeta_{6} + 400) q^{95} - 768 \zeta_{6} q^{96} - 1266 q^{97} + 558 q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 4 q^{2} + 3 q^{3} - 8 q^{4} + 4 q^{5} - 24 q^{6} - 9 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 4 q^{2} + 3 q^{3} - 8 q^{4} + 4 q^{5} - 24 q^{6} - 9 q^{9} + 16 q^{10} - 62 q^{11} + 24 q^{12} - 124 q^{13} + 24 q^{15} + 64 q^{16} - 84 q^{17} - 36 q^{18} - 100 q^{19} - 64 q^{20} + 496 q^{22} + 42 q^{23} + 109 q^{25} + 248 q^{26} - 54 q^{27} - 20 q^{29} - 48 q^{30} + 48 q^{31} + 256 q^{32} + 186 q^{33} + 672 q^{34} + 144 q^{36} + 246 q^{37} - 400 q^{38} - 186 q^{39} - 496 q^{41} + 136 q^{43} - 496 q^{44} + 36 q^{45} + 168 q^{46} - 324 q^{47} + 384 q^{48} - 872 q^{50} + 252 q^{51} + 496 q^{52} - 258 q^{53} + 108 q^{54} - 496 q^{55} - 600 q^{57} + 40 q^{58} - 120 q^{59} - 96 q^{60} - 622 q^{61} - 384 q^{62} - 1024 q^{64} - 248 q^{65} + 744 q^{66} - 904 q^{67} - 672 q^{68} + 252 q^{69} - 1356 q^{71} + 642 q^{73} + 984 q^{74} - 327 q^{75} + 1600 q^{76} + 1488 q^{78} - 740 q^{79} - 256 q^{80} - 81 q^{81} + 992 q^{82} + 936 q^{83} - 672 q^{85} - 272 q^{86} - 30 q^{87} - 200 q^{89} - 288 q^{90} - 672 q^{92} - 144 q^{93} - 1296 q^{94} + 400 q^{95} - 768 q^{96} - 2532 q^{97} + 1116 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/147\mathbb{Z}\right)^\times\).

\(n\) \(50\) \(52\)
\(\chi(n)\) \(1\) \(-\zeta_{6}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
67.1
0.500000 + 0.866025i
0.500000 0.866025i
−2.00000 3.46410i 1.50000 2.59808i −4.00000 + 6.92820i 2.00000 + 3.46410i −12.0000 0 0 −4.50000 7.79423i 8.00000 13.8564i
79.1 −2.00000 + 3.46410i 1.50000 + 2.59808i −4.00000 6.92820i 2.00000 3.46410i −12.0000 0 0 −4.50000 + 7.79423i 8.00000 + 13.8564i
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 147.4.e.c 2
3.b odd 2 1 441.4.e.m 2
7.b odd 2 1 147.4.e.b 2
7.c even 3 1 21.4.a.b 1
7.c even 3 1 inner 147.4.e.c 2
7.d odd 6 1 147.4.a.g 1
7.d odd 6 1 147.4.e.b 2
21.c even 2 1 441.4.e.n 2
21.g even 6 1 441.4.a.b 1
21.g even 6 1 441.4.e.n 2
21.h odd 6 1 63.4.a.a 1
21.h odd 6 1 441.4.e.m 2
28.f even 6 1 2352.4.a.l 1
28.g odd 6 1 336.4.a.h 1
35.j even 6 1 525.4.a.b 1
35.l odd 12 2 525.4.d.b 2
56.k odd 6 1 1344.4.a.i 1
56.p even 6 1 1344.4.a.w 1
84.n even 6 1 1008.4.a.m 1
105.o odd 6 1 1575.4.a.k 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
21.4.a.b 1 7.c even 3 1
63.4.a.a 1 21.h odd 6 1
147.4.a.g 1 7.d odd 6 1
147.4.e.b 2 7.b odd 2 1
147.4.e.b 2 7.d odd 6 1
147.4.e.c 2 1.a even 1 1 trivial
147.4.e.c 2 7.c even 3 1 inner
336.4.a.h 1 28.g odd 6 1
441.4.a.b 1 21.g even 6 1
441.4.e.m 2 3.b odd 2 1
441.4.e.m 2 21.h odd 6 1
441.4.e.n 2 21.c even 2 1
441.4.e.n 2 21.g even 6 1
525.4.a.b 1 35.j even 6 1
525.4.d.b 2 35.l odd 12 2
1008.4.a.m 1 84.n even 6 1
1344.4.a.i 1 56.k odd 6 1
1344.4.a.w 1 56.p even 6 1
1575.4.a.k 1 105.o odd 6 1
2352.4.a.l 1 28.f even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(147, [\chi])\):

\( T_{2}^{2} + 4T_{2} + 16 \) Copy content Toggle raw display
\( T_{5}^{2} - 4T_{5} + 16 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} + 4T + 16 \) Copy content Toggle raw display
$3$ \( T^{2} - 3T + 9 \) Copy content Toggle raw display
$5$ \( T^{2} - 4T + 16 \) Copy content Toggle raw display
$7$ \( T^{2} \) Copy content Toggle raw display
$11$ \( T^{2} + 62T + 3844 \) Copy content Toggle raw display
$13$ \( (T + 62)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} + 84T + 7056 \) Copy content Toggle raw display
$19$ \( T^{2} + 100T + 10000 \) Copy content Toggle raw display
$23$ \( T^{2} - 42T + 1764 \) Copy content Toggle raw display
$29$ \( (T + 10)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} - 48T + 2304 \) Copy content Toggle raw display
$37$ \( T^{2} - 246T + 60516 \) Copy content Toggle raw display
$41$ \( (T + 248)^{2} \) Copy content Toggle raw display
$43$ \( (T - 68)^{2} \) Copy content Toggle raw display
$47$ \( T^{2} + 324T + 104976 \) Copy content Toggle raw display
$53$ \( T^{2} + 258T + 66564 \) Copy content Toggle raw display
$59$ \( T^{2} + 120T + 14400 \) Copy content Toggle raw display
$61$ \( T^{2} + 622T + 386884 \) Copy content Toggle raw display
$67$ \( T^{2} + 904T + 817216 \) Copy content Toggle raw display
$71$ \( (T + 678)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} - 642T + 412164 \) Copy content Toggle raw display
$79$ \( T^{2} + 740T + 547600 \) Copy content Toggle raw display
$83$ \( (T - 468)^{2} \) Copy content Toggle raw display
$89$ \( T^{2} + 200T + 40000 \) Copy content Toggle raw display
$97$ \( (T + 1266)^{2} \) Copy content Toggle raw display
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