Properties

Label 162.5.d.a
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: \(\Z[a_1, \ldots, a_{25}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: no (minimal twist has level 6)
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.

\(f(q)\) \(=\) \( q + (\beta_{3} - \beta_1) q^{2} + ( - 8 \beta_{2} + 8) q^{4} + 6 \beta_1 q^{5} - 26 \beta_{2} q^{7} + 8 \beta_{3} q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + (\beta_{3} - \beta_1) q^{2} + ( - 8 \beta_{2} + 8) q^{4} + 6 \beta_1 q^{5} - 26 \beta_{2} q^{7} + 8 \beta_{3} q^{8} - 48 q^{10} + ( - 42 \beta_{3} + 42 \beta_1) q^{11} + (50 \beta_{2} - 50) q^{13} + 26 \beta_1 q^{14} - 64 \beta_{2} q^{16} - 72 \beta_{3} q^{17} - 358 q^{19} + ( - 48 \beta_{3} + 48 \beta_1) q^{20} + (336 \beta_{2} - 336) q^{22} + 132 \beta_1 q^{23} - 337 \beta_{2} q^{25} - 50 \beta_{3} q^{26} - 208 q^{28} + ( - 510 \beta_{3} + 510 \beta_1) q^{29} + ( - 742 \beta_{2} + 742) q^{31} + 64 \beta_1 q^{32} + 576 \beta_{2} q^{34} - 156 \beta_{3} q^{35} + 1874 q^{37} + ( - 358 \beta_{3} + 358 \beta_1) q^{38} + (384 \beta_{2} - 384) q^{40} + 852 \beta_1 q^{41} + 262 \beta_{2} q^{43} - 336 \beta_{3} q^{44} - 1056 q^{46} + ( - 600 \beta_{3} + 600 \beta_1) q^{47} + ( - 1725 \beta_{2} + 1725) q^{49} + 337 \beta_1 q^{50} + 400 \beta_{2} q^{52} + 162 \beta_{3} q^{53} + 2016 q^{55} + ( - 208 \beta_{3} + 208 \beta_1) q^{56} + (4080 \beta_{2} - 4080) q^{58} - 642 \beta_1 q^{59} + 1486 \beta_{2} q^{61} + 742 \beta_{3} q^{62} - 512 q^{64} + (300 \beta_{3} - 300 \beta_1) q^{65} + ( - 4486 \beta_{2} + 4486) q^{67} - 576 \beta_1 q^{68} + 1248 \beta_{2} q^{70} - 1260 \beta_{3} q^{71} + 290 q^{73} + (1874 \beta_{3} - 1874 \beta_1) q^{74} + (2864 \beta_{2} - 2864) q^{76} - 1092 \beta_1 q^{77} - 9818 \beta_{2} q^{79} - 384 \beta_{3} q^{80} - 6816 q^{82} + (2514 \beta_{3} - 2514 \beta_1) q^{83} + ( - 3456 \beta_{2} + 3456) q^{85} - 262 \beta_1 q^{86} + 2688 \beta_{2} q^{88} + 2772 \beta_{3} q^{89} + 1300 q^{91} + ( - 1056 \beta_{3} + 1056 \beta_1) q^{92} + (4800 \beta_{2} - 4800) q^{94} - 2148 \beta_1 q^{95} + 478 \beta_{2} q^{97} + 1725 \beta_{3} q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 16 q^{4} - 52 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 16 q^{4} - 52 q^{7} - 192 q^{10} - 100 q^{13} - 128 q^{16} - 1432 q^{19} - 672 q^{22} - 674 q^{25} - 832 q^{28} + 1484 q^{31} + 1152 q^{34} + 7496 q^{37} - 768 q^{40} + 524 q^{43} - 4224 q^{46} + 3450 q^{49} + 800 q^{52} + 8064 q^{55} - 8160 q^{58} + 2972 q^{61} - 2048 q^{64} + 8972 q^{67} + 2496 q^{70} + 1160 q^{73} - 5728 q^{76} - 19636 q^{79} - 27264 q^{82} + 6912 q^{85} + 5376 q^{88} + 5200 q^{91} - 9600 q^{94} + 956 q^{97}+O(q^{100}) \) 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 14.6969 + 8.48528i 0 −13.0000 22.5167i 22.6274i 0 −48.0000
53.2 2.44949 1.41421i 0 4.00000 6.92820i −14.6969 8.48528i 0 −13.0000 22.5167i 22.6274i 0 −48.0000
107.1 −2.44949 1.41421i 0 4.00000 + 6.92820i 14.6969 8.48528i 0 −13.0000 + 22.5167i 22.6274i 0 −48.0000
107.2 2.44949 + 1.41421i 0 4.00000 + 6.92820i −14.6969 + 8.48528i 0 −13.0000 + 22.5167i 22.6274i 0 −48.0000
\(n\): 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.a 4
3.b odd 2 1 inner 162.5.d.a 4
9.c even 3 1 6.5.b.a 2
9.c even 3 1 inner 162.5.d.a 4
9.d odd 6 1 6.5.b.a 2
9.d odd 6 1 inner 162.5.d.a 4
36.f odd 6 1 48.5.e.b 2
36.h even 6 1 48.5.e.b 2
45.h odd 6 1 150.5.d.a 2
45.j even 6 1 150.5.d.a 2
45.k odd 12 2 150.5.b.a 4
45.l even 12 2 150.5.b.a 4
63.l odd 6 1 294.5.b.a 2
63.o even 6 1 294.5.b.a 2
72.j odd 6 1 192.5.e.d 2
72.l even 6 1 192.5.e.c 2
72.n even 6 1 192.5.e.d 2
72.p odd 6 1 192.5.e.c 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
6.5.b.a 2 9.c even 3 1
6.5.b.a 2 9.d odd 6 1
48.5.e.b 2 36.f odd 6 1
48.5.e.b 2 36.h even 6 1
150.5.b.a 4 45.k odd 12 2
150.5.b.a 4 45.l even 12 2
150.5.d.a 2 45.h odd 6 1
150.5.d.a 2 45.j even 6 1
162.5.d.a 4 1.a even 1 1 trivial
162.5.d.a 4 3.b odd 2 1 inner
162.5.d.a 4 9.c even 3 1 inner
162.5.d.a 4 9.d odd 6 1 inner
192.5.e.c 2 72.l even 6 1
192.5.e.c 2 72.p odd 6 1
192.5.e.d 2 72.j odd 6 1
192.5.e.d 2 72.n even 6 1
294.5.b.a 2 63.l odd 6 1
294.5.b.a 2 63.o even 6 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{4} - 288T_{5}^{2} + 82944 \) 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
$5$ \( T^{4} - 288 T^{2} + 82944 \) Copy content Toggle raw display
$7$ \( (T^{2} + 26 T + 676)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} - 14112 T^{2} + 199148544 \) Copy content Toggle raw display
$13$ \( (T^{2} + 50 T + 2500)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} + 41472)^{2} \) Copy content Toggle raw display
$19$ \( (T + 358)^{4} \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots + 19430129664 \) Copy content Toggle raw display
$29$ \( T^{4} + \cdots + 4329728640000 \) Copy content Toggle raw display
$31$ \( (T^{2} - 742 T + 550564)^{2} \) Copy content Toggle raw display
$37$ \( (T - 1874)^{4} \) Copy content Toggle raw display
$41$ \( T^{4} + \cdots + 33723943501824 \) Copy content Toggle raw display
$43$ \( (T^{2} - 262 T + 68644)^{2} \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots + 8294400000000 \) Copy content Toggle raw display
$53$ \( (T^{2} + 209952)^{2} \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 10872266425344 \) Copy content Toggle raw display
$61$ \( (T^{2} - 1486 T + 2208196)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} - 4486 T + 20124196)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} + 12700800)^{2} \) Copy content Toggle raw display
$73$ \( (T - 290)^{4} \) Copy content Toggle raw display
$79$ \( (T^{2} + 9818 T + 96393124)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 25\!\cdots\!24 \) Copy content Toggle raw display
$89$ \( (T^{2} + 61471872)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} - 478 T + 228484)^{2} \) Copy content Toggle raw display
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