Properties

Label 64.5.c.c
Level $64$
Weight $5$
Character orbit 64.c
Analytic conductor $6.616$
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] = [64,5,Mod(63,64)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(64, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0]))
 
N = Newforms(chi, 5, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("64.63");
 
S:= CuspForms(chi, 5);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 64 = 2^{6} \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 64.c (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: \(6.61567763737\)
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: \( 2^{4} \)
Twist minimal: no (minimal twist has level 16)
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 \(\beta = 8\sqrt{-3}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta q^{3} - 18 q^{5} - 2 \beta q^{7} - 111 q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - \beta q^{3} - 18 q^{5} - 2 \beta q^{7} - 111 q^{9} + 9 \beta q^{11} - 178 q^{13} + 18 \beta q^{15} - 126 q^{17} - 29 \beta q^{19} - 384 q^{21} - 54 \beta q^{23} - 301 q^{25} + 30 \beta q^{27} + 1422 q^{29} + 24 \beta q^{31} + 1728 q^{33} + 36 \beta q^{35} - 530 q^{37} + 178 \beta q^{39} + 162 q^{41} - 111 \beta q^{43} + 1998 q^{45} - 252 \beta q^{47} + 1633 q^{49} + 126 \beta q^{51} - 594 q^{53} - 162 \beta q^{55} - 5568 q^{57} - 171 \beta q^{59} - 626 q^{61} + 222 \beta q^{63} + 3204 q^{65} + 79 \beta q^{67} - 10368 q^{69} + 558 \beta q^{71} - 6686 q^{73} + 301 \beta q^{75} + 3456 q^{77} - 100 \beta q^{79} - 3231 q^{81} - 333 \beta q^{83} + 2268 q^{85} - 1422 \beta q^{87} + 8226 q^{89} + 356 \beta q^{91} + 4608 q^{93} + 522 \beta q^{95} - 1598 q^{97} - 999 \beta q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 36 q^{5} - 222 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 36 q^{5} - 222 q^{9} - 356 q^{13} - 252 q^{17} - 768 q^{21} - 602 q^{25} + 2844 q^{29} + 3456 q^{33} - 1060 q^{37} + 324 q^{41} + 3996 q^{45} + 3266 q^{49} - 1188 q^{53} - 11136 q^{57} - 1252 q^{61} + 6408 q^{65} - 20736 q^{69} - 13372 q^{73} + 6912 q^{77} - 6462 q^{81} + 4536 q^{85} + 16452 q^{89} + 9216 q^{93} - 3196 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/64\mathbb{Z}\right)^\times\).

\(n\) \(5\) \(63\)
\(\chi(n)\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
63.1
0.500000 + 0.866025i
0.500000 0.866025i
0 13.8564i 0 −18.0000 0 27.7128i 0 −111.000 0
63.2 0 13.8564i 0 −18.0000 0 27.7128i 0 −111.000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 64.5.c.c 2
3.b odd 2 1 576.5.g.h 2
4.b odd 2 1 inner 64.5.c.c 2
8.b even 2 1 16.5.c.a 2
8.d odd 2 1 16.5.c.a 2
12.b even 2 1 576.5.g.h 2
16.e even 4 2 256.5.d.f 4
16.f odd 4 2 256.5.d.f 4
24.f even 2 1 144.5.g.c 2
24.h odd 2 1 144.5.g.c 2
40.e odd 2 1 400.5.b.d 2
40.f even 2 1 400.5.b.d 2
40.i odd 4 2 400.5.h.b 4
40.k even 4 2 400.5.h.b 4
56.e even 2 1 784.5.d.a 2
56.h odd 2 1 784.5.d.a 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
16.5.c.a 2 8.b even 2 1
16.5.c.a 2 8.d odd 2 1
64.5.c.c 2 1.a even 1 1 trivial
64.5.c.c 2 4.b odd 2 1 inner
144.5.g.c 2 24.f even 2 1
144.5.g.c 2 24.h odd 2 1
256.5.d.f 4 16.e even 4 2
256.5.d.f 4 16.f odd 4 2
400.5.b.d 2 40.e odd 2 1
400.5.b.d 2 40.f even 2 1
400.5.h.b 4 40.i odd 4 2
400.5.h.b 4 40.k even 4 2
576.5.g.h 2 3.b odd 2 1
576.5.g.h 2 12.b even 2 1
784.5.d.a 2 56.e even 2 1
784.5.d.a 2 56.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{2} + 192 \) acting on \(S_{5}^{\mathrm{new}}(64, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} + 192 \) Copy content Toggle raw display
$5$ \( (T + 18)^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + 768 \) Copy content Toggle raw display
$11$ \( T^{2} + 15552 \) Copy content Toggle raw display
$13$ \( (T + 178)^{2} \) Copy content Toggle raw display
$17$ \( (T + 126)^{2} \) Copy content Toggle raw display
$19$ \( T^{2} + 161472 \) Copy content Toggle raw display
$23$ \( T^{2} + 559872 \) Copy content Toggle raw display
$29$ \( (T - 1422)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} + 110592 \) Copy content Toggle raw display
$37$ \( (T + 530)^{2} \) Copy content Toggle raw display
$41$ \( (T - 162)^{2} \) Copy content Toggle raw display
$43$ \( T^{2} + 2365632 \) Copy content Toggle raw display
$47$ \( T^{2} + 12192768 \) Copy content Toggle raw display
$53$ \( (T + 594)^{2} \) Copy content Toggle raw display
$59$ \( T^{2} + 5614272 \) Copy content Toggle raw display
$61$ \( (T + 626)^{2} \) Copy content Toggle raw display
$67$ \( T^{2} + 1198272 \) Copy content Toggle raw display
$71$ \( T^{2} + 59781888 \) Copy content Toggle raw display
$73$ \( (T + 6686)^{2} \) Copy content Toggle raw display
$79$ \( T^{2} + 1920000 \) Copy content Toggle raw display
$83$ \( T^{2} + 21290688 \) Copy content Toggle raw display
$89$ \( (T - 8226)^{2} \) Copy content Toggle raw display
$97$ \( (T + 1598)^{2} \) Copy content Toggle raw display
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