Properties

Label 162.5.d.b
Level $162$
Weight $5$
Character orbit 162.d
Analytic conductor $16.746$
Analytic rank $0$
Dimension $4$
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] = [162,5,Mod(53,162)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(162, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([5]))
 
N = Newforms(chi, 5, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("162.53");
 
S:= CuspForms(chi, 5);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 162 = 2 \cdot 3^{4} \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 162.d (of order \(6\), 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: \(16.7459340196\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\Q(\sqrt{-2}, \sqrt{-3})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - 2x^{2} + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: no (minimal twist has level 54)
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

$q$-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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{3} + \beta_1) q^{2} + ( - 8 \beta_{2} + 8) q^{4} + 12 \beta_1 q^{5} + 73 \beta_{2} q^{7} - 8 \beta_{3} q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{3} + \beta_1) q^{2} + ( - 8 \beta_{2} + 8) q^{4} + 12 \beta_1 q^{5} + 73 \beta_{2} q^{7} - 8 \beta_{3} q^{8} + 96 q^{10} + (60 \beta_{3} - 60 \beta_1) q^{11} + (95 \beta_{2} - 95) q^{13} + 73 \beta_1 q^{14} - 64 \beta_{2} q^{16} + 36 \beta_{3} q^{17} - 313 q^{19} + ( - 96 \beta_{3} + 96 \beta_1) q^{20} + (480 \beta_{2} - 480) q^{22} + 228 \beta_1 q^{23} + 527 \beta_{2} q^{25} + 95 \beta_{3} q^{26} + 584 q^{28} + ( - 552 \beta_{3} + 552 \beta_1) q^{29} + ( - 958 \beta_{2} + 958) q^{31} - 64 \beta_1 q^{32} + 288 \beta_{2} q^{34} + 876 \beta_{3} q^{35} - 385 q^{37} + (313 \beta_{3} - 313 \beta_1) q^{38} + ( - 768 \beta_{2} + 768) q^{40} + 840 \beta_1 q^{41} - 2546 \beta_{2} q^{43} + 480 \beta_{3} q^{44} + 1824 q^{46} + (60 \beta_{3} - 60 \beta_1) q^{47} + (2928 \beta_{2} - 2928) q^{49} + 527 \beta_1 q^{50} + 760 \beta_{2} q^{52} - 936 \beta_{3} q^{53} - 5760 q^{55} + ( - 584 \beta_{3} + 584 \beta_1) q^{56} + ( - 4416 \beta_{2} + 4416) q^{58} + 948 \beta_1 q^{59} - 5615 \beta_{2} q^{61} - 958 \beta_{3} q^{62} - 512 q^{64} + (1140 \beta_{3} - 1140 \beta_1) q^{65} + (23 \beta_{2} - 23) q^{67} + 288 \beta_1 q^{68} + 7008 \beta_{2} q^{70} + 144 \beta_{3} q^{71} + 6527 q^{73} + (385 \beta_{3} - 385 \beta_1) q^{74} + (2504 \beta_{2} - 2504) q^{76} - 4380 \beta_1 q^{77} + 6121 \beta_{2} q^{79} - 768 \beta_{3} q^{80} + 6720 q^{82} + (888 \beta_{3} - 888 \beta_1) q^{83} + (3456 \beta_{2} - 3456) q^{85} - 2546 \beta_1 q^{86} + 3840 \beta_{2} q^{88} - 972 \beta_{3} q^{89} - 6935 q^{91} + ( - 1824 \beta_{3} + 1824 \beta_1) q^{92} + (480 \beta_{2} - 480) q^{94} - 3756 \beta_1 q^{95} - 9935 \beta_{2} q^{97} + 2928 \beta_{3} q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 16 q^{4} + 146 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 16 q^{4} + 146 q^{7} + 384 q^{10} - 190 q^{13} - 128 q^{16} - 1252 q^{19} - 960 q^{22} + 1054 q^{25} + 2336 q^{28} + 1916 q^{31} + 576 q^{34} - 1540 q^{37} + 1536 q^{40} - 5092 q^{43} + 7296 q^{46} - 5856 q^{49} + 1520 q^{52} - 23040 q^{55} + 8832 q^{58} - 11230 q^{61} - 2048 q^{64} - 46 q^{67} + 14016 q^{70} + 26108 q^{73} - 5008 q^{76} + 12242 q^{79} + 26880 q^{82} - 6912 q^{85} + 7680 q^{88} - 27740 q^{91} - 960 q^{94} - 19870 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - 2x^{2} + 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} ) / 2 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( 2\beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/162\mathbb{Z}\right)^\times\).

\(n\) \(83\)
\(\chi(n)\) \(1 - \beta_{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
53.1
−1.22474 0.707107i
1.22474 + 0.707107i
−1.22474 + 0.707107i
1.22474 0.707107i
−2.44949 + 1.41421i 0 4.00000 6.92820i −29.3939 16.9706i 0 36.5000 + 63.2199i 22.6274i 0 96.0000
53.2 2.44949 1.41421i 0 4.00000 6.92820i 29.3939 + 16.9706i 0 36.5000 + 63.2199i 22.6274i 0 96.0000
107.1 −2.44949 1.41421i 0 4.00000 + 6.92820i −29.3939 + 16.9706i 0 36.5000 63.2199i 22.6274i 0 96.0000
107.2 2.44949 + 1.41421i 0 4.00000 + 6.92820i 29.3939 16.9706i 0 36.5000 63.2199i 22.6274i 0 96.0000
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
9.c even 3 1 inner
9.d odd 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 162.5.d.b 4
3.b odd 2 1 inner 162.5.d.b 4
9.c even 3 1 54.5.b.a 2
9.c even 3 1 inner 162.5.d.b 4
9.d odd 6 1 54.5.b.a 2
9.d odd 6 1 inner 162.5.d.b 4
36.f odd 6 1 432.5.e.g 2
36.h even 6 1 432.5.e.g 2
45.h odd 6 1 1350.5.d.a 2
45.j even 6 1 1350.5.d.a 2
45.k odd 12 2 1350.5.b.b 4
45.l even 12 2 1350.5.b.b 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
54.5.b.a 2 9.c even 3 1
54.5.b.a 2 9.d odd 6 1
162.5.d.b 4 1.a even 1 1 trivial
162.5.d.b 4 3.b odd 2 1 inner
162.5.d.b 4 9.c even 3 1 inner
162.5.d.b 4 9.d odd 6 1 inner
432.5.e.g 2 36.f odd 6 1
432.5.e.g 2 36.h even 6 1
1350.5.b.b 4 45.k odd 12 2
1350.5.b.b 4 45.l even 12 2
1350.5.d.a 2 45.h odd 6 1
1350.5.d.a 2 45.j even 6 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{4} - 1152T_{5}^{2} + 1327104 \) acting on \(S_{5}^{\mathrm{new}}(162, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} - 8T^{2} + 64 \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( T^{4} - 1152 T^{2} + 1327104 \) Copy content Toggle raw display
$7$ \( (T^{2} - 73 T + 5329)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} - 28800 T^{2} + 829440000 \) Copy content Toggle raw display
$13$ \( (T^{2} + 95 T + 9025)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} + 10368)^{2} \) Copy content Toggle raw display
$19$ \( (T + 313)^{4} \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots + 172949520384 \) Copy content Toggle raw display
$29$ \( T^{4} + \cdots + 5942049767424 \) Copy content Toggle raw display
$31$ \( (T^{2} - 958 T + 917764)^{2} \) Copy content Toggle raw display
$37$ \( (T + 385)^{4} \) Copy content Toggle raw display
$41$ \( T^{4} + \cdots + 31863767040000 \) Copy content Toggle raw display
$43$ \( (T^{2} + 2546 T + 6482116)^{2} \) Copy content Toggle raw display
$47$ \( T^{4} - 28800 T^{2} + 829440000 \) Copy content Toggle raw display
$53$ \( (T^{2} + 7008768)^{2} \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 51690808295424 \) Copy content Toggle raw display
$61$ \( (T^{2} + 5615 T + 31528225)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} + 23 T + 529)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} + 165888)^{2} \) Copy content Toggle raw display
$73$ \( (T - 6527)^{4} \) Copy content Toggle raw display
$79$ \( (T^{2} - 6121 T + 37466641)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 39795304955904 \) Copy content Toggle raw display
$89$ \( (T^{2} + 7558272)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} + 9935 T + 98704225)^{2} \) Copy content Toggle raw display
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