Properties

Label 1380.4.a.f
Level $1380$
Weight $4$
Character orbit 1380.a
Self dual yes
Analytic conductor $81.423$
Analytic rank $0$
Dimension $5$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1380,4,Mod(1,1380)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1380, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1380.1");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1380 = 2^{2} \cdot 3 \cdot 5 \cdot 23 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 1380.a (trivial)

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: yes
Analytic conductor: \(81.4226358079\)
Analytic rank: \(0\)
Dimension: \(5\)
Coefficient field: \(\mathbb{Q}[x]/(x^{5} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{5} - x^{4} - 513x^{3} + 983x^{2} + 42916x - 124026 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{3}\cdot 3 \)
Twist minimal: yes
Fricke sign: \(1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(1,\beta_1,\beta_2,\beta_3,\beta_4\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - 3 q^{3} + 5 q^{5} + ( - \beta_1 - 5) q^{7} + 9 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - 3 q^{3} + 5 q^{5} + ( - \beta_1 - 5) q^{7} + 9 q^{9} + (\beta_{2} - 1) q^{11} + (\beta_{3} + \beta_{2} + 17) q^{13} - 15 q^{15} + (\beta_{2} - \beta_1 + 28) q^{17} + ( - \beta_{4} + \beta_{3} + \beta_{2} + \cdots - 4) q^{19}+ \cdots + (9 \beta_{2} - 9) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 5 q - 15 q^{3} + 25 q^{5} - 25 q^{7} + 45 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 5 q - 15 q^{3} + 25 q^{5} - 25 q^{7} + 45 q^{9} - 4 q^{11} + 88 q^{13} - 75 q^{15} + 141 q^{17} - 16 q^{19} + 75 q^{21} - 115 q^{23} + 125 q^{25} - 135 q^{27} + 95 q^{29} - 9 q^{31} + 12 q^{33} - 125 q^{35} + 179 q^{37} - 264 q^{39} + 73 q^{41} - 100 q^{43} + 225 q^{45} - 242 q^{47} + 16 q^{49} - 423 q^{51} + 653 q^{53} - 20 q^{55} + 48 q^{57} - 683 q^{59} + 482 q^{61} - 225 q^{63} + 440 q^{65} + 159 q^{67} + 345 q^{69} - 789 q^{71} + 1112 q^{73} - 375 q^{75} - 68 q^{77} + 340 q^{79} + 405 q^{81} + 33 q^{83} + 705 q^{85} - 285 q^{87} + 1344 q^{89} - 504 q^{91} + 27 q^{93} - 80 q^{95} + 1902 q^{97} - 36 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{5} - x^{4} - 513x^{3} + 983x^{2} + 42916x - 124026 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -\nu^{4} + 84\nu^{3} + 1221\nu^{2} - 25526\nu - 151458 ) / 11520 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{4} + 12\nu^{3} - 549\nu^{2} - 4618\nu + 46626 ) / 576 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -11\nu^{4} - 36\nu^{3} + 4791\nu^{2} + 18734\nu - 220278 ) / 3840 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 17\nu^{4} + 12\nu^{3} - 7797\nu^{2} + 19222\nu + 400386 ) / 5760 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{4} + \beta_{3} + \beta _1 + 1 ) / 6 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{4} - 13\beta_{3} - 18\beta_{2} + 35\beta _1 + 1241 ) / 6 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 107\beta_{4} + 135\beta_{3} + 54\beta_{2} + 263\beta _1 - 607 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 217\beta_{4} - 7379\beta_{3} - 8370\beta_{2} + 14365\beta _1 + 428023 ) / 6 \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
19.7129
−10.6474
−20.6135
3.00340
9.54450
0 −3.00000 0 5.00000 0 −32.1092 0 9.00000 0
1.2 0 −3.00000 0 5.00000 0 −17.5437 0 9.00000 0
1.3 0 −3.00000 0 5.00000 0 −3.02400 0 9.00000 0
1.4 0 −3.00000 0 5.00000 0 13.6558 0 9.00000 0
1.5 0 −3.00000 0 5.00000 0 14.0211 0 9.00000 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1.5
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)
\(3\) \(1\)
\(5\) \(-1\)
\(23\) \(1\)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1380.4.a.f 5
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1380.4.a.f 5 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{5} + 25T_{7}^{4} - 553T_{7}^{3} - 7957T_{7}^{2} + 89460T_{7} + 326160 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(1380))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{5} \) Copy content Toggle raw display
$3$ \( (T + 3)^{5} \) Copy content Toggle raw display
$5$ \( (T - 5)^{5} \) Copy content Toggle raw display
$7$ \( T^{5} + 25 T^{4} + \cdots + 326160 \) Copy content Toggle raw display
$11$ \( T^{5} + 4 T^{4} + \cdots + 102240000 \) Copy content Toggle raw display
$13$ \( T^{5} - 88 T^{4} + \cdots + 79442480 \) Copy content Toggle raw display
$17$ \( T^{5} - 141 T^{4} + \cdots - 1045548 \) Copy content Toggle raw display
$19$ \( T^{5} + 16 T^{4} + \cdots + 526777600 \) Copy content Toggle raw display
$23$ \( (T + 23)^{5} \) Copy content Toggle raw display
$29$ \( T^{5} + \cdots + 10218977676 \) Copy content Toggle raw display
$31$ \( T^{5} + \cdots + 324184930560 \) Copy content Toggle raw display
$37$ \( T^{5} + \cdots - 24278002604 \) Copy content Toggle raw display
$41$ \( T^{5} + \cdots - 30362324580 \) Copy content Toggle raw display
$43$ \( T^{5} + \cdots - 40003978752 \) Copy content Toggle raw display
$47$ \( T^{5} + \cdots + 573713943552 \) Copy content Toggle raw display
$53$ \( T^{5} + \cdots - 4527350164116 \) Copy content Toggle raw display
$59$ \( T^{5} + \cdots + 9994108009536 \) Copy content Toggle raw display
$61$ \( T^{5} + \cdots - 63930105792 \) Copy content Toggle raw display
$67$ \( T^{5} + \cdots + 288079149648 \) Copy content Toggle raw display
$71$ \( T^{5} + \cdots + 4553711874000 \) Copy content Toggle raw display
$73$ \( T^{5} + \cdots - 7004639312720 \) Copy content Toggle raw display
$79$ \( T^{5} + \cdots + 30452550840320 \) Copy content Toggle raw display
$83$ \( T^{5} + \cdots + 4636307560752 \) Copy content Toggle raw display
$89$ \( T^{5} + \cdots - 2419273267200 \) Copy content Toggle raw display
$97$ \( T^{5} + \cdots - 965405699349760 \) Copy content Toggle raw display
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