Properties

Label 112.16.a.f
Level $112$
Weight $16$
Character orbit 112.a
Self dual yes
Analytic conductor $159.817$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $1$

Related objects

Downloads

Learn more

Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [112,16,Mod(1,112)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("112.1"); S:= CuspForms(chi, 16); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(112, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 16, names="a")
 
Level: \( N \) \(=\) \( 112 = 2^{4} \cdot 7 \)
Weight: \( k \) \(=\) \( 16 \)
Character orbit: \([\chi]\) \(=\) 112.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,-8554] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(3)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(159.816725712\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\mathbb{Q}[x]/(x^{4} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - 2x^{3} - 7385x^{2} - 167250x - 586980 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{14}\cdot 3\cdot 5\cdot 7 \)
Twist minimal: no (minimal twist has level 7)
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content 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.

\(f(q)\) \(=\) \( q + (\beta_1 - 2138) q^{3} + ( - 10 \beta_{3} + \beta_{2} + \cdots + 1938) q^{5} + 823543 q^{7} + ( - 261 \beta_{3} + 356 \beta_{2} + \cdots + 4593753) q^{9} + (328 \beta_{3} - 8279 \beta_{2} + \cdots - 23778218) q^{11}+ \cdots + (24053532948 \beta_{3} + \cdots - 495150960902682) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 8554 q^{3} + 7770 q^{5} + 3294172 q^{7} + 18374368 q^{9} - 95100588 q^{11} + 713478766 q^{13} - 1118668480 q^{15} + 2576284284 q^{17} + 4224573122 q^{19} - 7044586822 q^{21} + 12857739312 q^{23} + 3370132400 q^{25}+ \cdots - 19\!\cdots\!96 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - 2x^{3} - 7385x^{2} - 167250x - 586980 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 25\nu^{3} + 127\nu^{2} - 93050\nu - 3836328 ) / 1707 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -145\nu^{3} + 2905\nu^{2} + 994890\nu + 8567618 ) / 569 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -89\nu^{3} - 7007\nu^{2} + 1041370\nu + 37510536 ) / 1707 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( 5\beta_{3} + 3\beta_{2} + 70\beta _1 + 2274 ) / 4480 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -125\beta_{3} + 65\beta_{2} + 686\beta _1 + 3309814 ) / 896 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 4357\beta_{3} + 1903\beta_{2} + 109802\beta _1 + 122372906 ) / 896 \) 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.

Copy content comment:embeddings in the coefficient field
 
Copy content 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
−70.6727
−4.33708
−19.7845
96.7943
0 −5331.04 0 305120. 0 823543. 0 1.40711e7 0
1.2 0 −4148.79 0 −142812. 0 823543. 0 2.86353e6 0
1.3 0 −3391.24 0 −75579.8 0 823543. 0 −2.84842e6 0
1.4 0 4317.07 0 −78958.0 0 823543. 0 4.28816e6 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(7\) \( -1 \)

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 112.16.a.f 4
4.b odd 2 1 7.16.a.b 4
12.b even 2 1 63.16.a.e 4
28.d even 2 1 49.16.a.d 4
28.f even 6 2 49.16.c.g 8
28.g odd 6 2 49.16.c.f 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
7.16.a.b 4 4.b odd 2 1
49.16.a.d 4 28.d even 2 1
49.16.c.f 8 28.g odd 6 2
49.16.c.g 8 28.f even 6 2
63.16.a.e 4 12.b even 2 1
112.16.a.f 4 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{4} + 8554T_{3}^{3} - 1299540T_{3}^{2} - 159263455176T_{3} - 323802472565376 \) acting on \(S_{16}^{\mathrm{new}}(\Gamma_0(112))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} + \cdots - 323802472565376 \) Copy content Toggle raw display
$5$ \( T^{4} + \cdots - 26\!\cdots\!00 \) Copy content Toggle raw display
$7$ \( (T - 823543)^{4} \) Copy content Toggle raw display
$11$ \( T^{4} + \cdots - 15\!\cdots\!44 \) Copy content Toggle raw display
$13$ \( T^{4} + \cdots + 30\!\cdots\!20 \) Copy content Toggle raw display
$17$ \( T^{4} + \cdots + 13\!\cdots\!56 \) Copy content Toggle raw display
$19$ \( T^{4} + \cdots - 18\!\cdots\!00 \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots + 46\!\cdots\!56 \) Copy content Toggle raw display
$29$ \( T^{4} + \cdots + 39\!\cdots\!00 \) Copy content Toggle raw display
$31$ \( T^{4} + \cdots - 40\!\cdots\!92 \) Copy content Toggle raw display
$37$ \( T^{4} + \cdots - 86\!\cdots\!76 \) Copy content Toggle raw display
$41$ \( T^{4} + \cdots - 75\!\cdots\!36 \) Copy content Toggle raw display
$43$ \( T^{4} + \cdots + 59\!\cdots\!60 \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots + 32\!\cdots\!08 \) Copy content Toggle raw display
$53$ \( T^{4} + \cdots - 29\!\cdots\!32 \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots - 68\!\cdots\!00 \) Copy content Toggle raw display
$61$ \( T^{4} + \cdots - 53\!\cdots\!36 \) Copy content Toggle raw display
$67$ \( T^{4} + \cdots - 21\!\cdots\!68 \) Copy content Toggle raw display
$71$ \( T^{4} + \cdots + 12\!\cdots\!00 \) Copy content Toggle raw display
$73$ \( T^{4} + \cdots - 16\!\cdots\!52 \) Copy content Toggle raw display
$79$ \( T^{4} + \cdots + 92\!\cdots\!00 \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 15\!\cdots\!88 \) Copy content Toggle raw display
$89$ \( T^{4} + \cdots - 24\!\cdots\!00 \) Copy content Toggle raw display
$97$ \( T^{4} + \cdots + 10\!\cdots\!68 \) Copy content Toggle raw display
show more
show less