Properties

Label 315.3.e.c
Level $315$
Weight $3$
Character orbit 315.e
Analytic conductor $8.583$
Analytic rank $0$
Dimension $4$
Inner twists $4$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [315,3,Mod(244,315)] 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("315.244"); S:= CuspForms(chi, 3); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(315, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 1, 1])) N = Newforms(chi, 3, names="a")
 
Level: \( N \) \(=\) \( 315 = 3^{2} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 315.e (of order \(2\), degree \(1\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,0,-20,0,0,0,0,0,0,-56] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(11)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(8.58312832735\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{10})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 25 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 3^{2} \)
Twist minimal: no (minimal twist has level 35)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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.

\(f(q)\) \(=\) \( q - \beta_1 q^{2} - 5 q^{4} + \beta_{2} q^{5} + ( - 2 \beta_{3} - \beta_1) q^{7} + \beta_1 q^{8} + (5 \beta_{3} - \beta_{2}) q^{10} - 14 q^{11} - \beta_{3} q^{13} + ( - 2 \beta_{3} + 4 \beta_{2} - 9) q^{14}+ \cdots + (36 \beta_{3} - 31 \beta_1) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 20 q^{4} - 56 q^{11} - 36 q^{14} - 44 q^{16} - 80 q^{25} - 56 q^{29} - 40 q^{35} + 280 q^{44} + 144 q^{46} + 124 q^{49} + 180 q^{50} + 36 q^{56} + 364 q^{64} - 20 q^{65} - 360 q^{70} + 64 q^{71} + 216 q^{74}+ \cdots - 540 q^{95}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 25 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 3\nu^{2} ) / 5 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{3} + 10\nu ) / 5 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{3} + 5\nu ) / 5 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{3} + \beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 5\beta_1 ) / 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -10\beta_{3} + 5\beta_{2} ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/315\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(136\) \(281\)
\(\chi(n)\) \(-1\) \(-1\) \(1\)

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
244.1
−1.58114 1.58114i
1.58114 + 1.58114i
−1.58114 + 1.58114i
1.58114 1.58114i
3.00000i 0 −5.00000 −1.58114 4.74342i 0 6.32456 3.00000i 3.00000i 0 −14.2302 + 4.74342i
244.2 3.00000i 0 −5.00000 1.58114 + 4.74342i 0 −6.32456 3.00000i 3.00000i 0 14.2302 4.74342i
244.3 3.00000i 0 −5.00000 −1.58114 + 4.74342i 0 6.32456 + 3.00000i 3.00000i 0 −14.2302 4.74342i
244.4 3.00000i 0 −5.00000 1.58114 4.74342i 0 −6.32456 + 3.00000i 3.00000i 0 14.2302 + 4.74342i
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner
7.b odd 2 1 inner
35.c odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 315.3.e.c 4
3.b odd 2 1 35.3.c.c 4
5.b even 2 1 inner 315.3.e.c 4
7.b odd 2 1 inner 315.3.e.c 4
12.b even 2 1 560.3.p.f 4
15.d odd 2 1 35.3.c.c 4
15.e even 4 1 175.3.d.b 2
15.e even 4 1 175.3.d.h 2
21.c even 2 1 35.3.c.c 4
21.g even 6 2 245.3.i.c 8
21.h odd 6 2 245.3.i.c 8
35.c odd 2 1 inner 315.3.e.c 4
60.h even 2 1 560.3.p.f 4
84.h odd 2 1 560.3.p.f 4
105.g even 2 1 35.3.c.c 4
105.k odd 4 1 175.3.d.b 2
105.k odd 4 1 175.3.d.h 2
105.o odd 6 2 245.3.i.c 8
105.p even 6 2 245.3.i.c 8
420.o odd 2 1 560.3.p.f 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
35.3.c.c 4 3.b odd 2 1
35.3.c.c 4 15.d odd 2 1
35.3.c.c 4 21.c even 2 1
35.3.c.c 4 105.g even 2 1
175.3.d.b 2 15.e even 4 1
175.3.d.b 2 105.k odd 4 1
175.3.d.h 2 15.e even 4 1
175.3.d.h 2 105.k odd 4 1
245.3.i.c 8 21.g even 6 2
245.3.i.c 8 21.h odd 6 2
245.3.i.c 8 105.o odd 6 2
245.3.i.c 8 105.p even 6 2
315.3.e.c 4 1.a even 1 1 trivial
315.3.e.c 4 5.b even 2 1 inner
315.3.e.c 4 7.b odd 2 1 inner
315.3.e.c 4 35.c odd 2 1 inner
560.3.p.f 4 12.b even 2 1
560.3.p.f 4 60.h even 2 1
560.3.p.f 4 84.h odd 2 1
560.3.p.f 4 420.o odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(315, [\chi])\):

\( T_{2}^{2} + 9 \) Copy content Toggle raw display
\( T_{13}^{2} - 10 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + 9)^{2} \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( T^{4} + 40T^{2} + 625 \) Copy content Toggle raw display
$7$ \( T^{4} - 62T^{2} + 2401 \) Copy content Toggle raw display
$11$ \( (T + 14)^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} - 10)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} - 40)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 810)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} + 144)^{2} \) Copy content Toggle raw display
$29$ \( (T + 14)^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} + 1440)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} + 324)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} + 360)^{2} \) Copy content Toggle raw display
$43$ \( (T^{2} + 1764)^{2} \) Copy content Toggle raw display
$47$ \( (T^{2} - 1960)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} + 2916)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} + 90)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 4410)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} + 10404)^{2} \) Copy content Toggle raw display
$71$ \( (T - 16)^{4} \) Copy content Toggle raw display
$73$ \( (T^{2} - 4000)^{2} \) Copy content Toggle raw display
$79$ \( (T + 76)^{4} \) Copy content Toggle raw display
$83$ \( (T^{2} - 5290)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} + 3240)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} - 4840)^{2} \) Copy content Toggle raw display
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