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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [350,10,Mod(99,350)] 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("350.99"); S:= CuspForms(chi, 10); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(350, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([1, 0])) N = Newforms(chi, 10, names="a")
 
Level: \( N \) \(=\) \( 350 = 2 \cdot 5^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 10 \)
Character orbit: \([\chi]\) \(=\) 350.c (of order \(2\), degree \(1\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,0,-1024,0,-1856] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(6)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(180.262542657\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{541})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 271x^{2} + 18225 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{6} \)
Twist minimal: no (minimal twist has level 70)
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.

\(f(q)\) \(=\) \( q + 16 \beta_1 q^{2} + (\beta_{2} + 29 \beta_1) q^{3} - 256 q^{4} + ( - 16 \beta_{3} - 464) q^{6} - 2401 \beta_1 q^{7} - 4096 \beta_1 q^{8} + ( - 58 \beta_{3} + 10186) q^{9} + (222 \beta_{3} - 21573) q^{11}+ \cdots + (3512526 \beta_{3} - 331197234) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 1024 q^{4} - 1856 q^{6} + 40744 q^{9} - 86292 q^{11} + 153664 q^{14} + 262144 q^{16} + 872296 q^{19} + 278516 q^{21} + 475136 q^{24} + 2679616 q^{26} + 152580 q^{29} + 7785008 q^{31} + 495168 q^{34}+ \cdots - 1324788936 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 271x^{2} + 18225 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{3} + 136\nu ) / 135 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 4\nu^{3} + 1624\nu ) / 135 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 8\nu^{2} + 1084 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} - 4\beta_1 ) / 8 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} - 1084 ) / 8 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -17\beta_{2} + 203\beta_1 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/350\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(127\)
\(\chi(n)\) \(1\) \(-1\)

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
99.1
− 11.1297i
12.1297i
− 12.1297i
11.1297i
− 16.0000i − 122.038i −256.000 0 −1952.60 2401.00i 4096.00i 4789.82 0
99.2 − 16.0000i 64.0376i −256.000 0 1024.60 2401.00i 4096.00i 15582.2 0
99.3 16.0000i − 64.0376i −256.000 0 1024.60 − 2401.00i − 4096.00i 15582.2 0
99.4 16.0000i 122.038i −256.000 0 −1952.60 − 2401.00i − 4096.00i 4789.82 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 350.10.c.h 4
5.b even 2 1 inner 350.10.c.h 4
5.c odd 4 1 70.10.a.c ✓ 2
5.c odd 4 1 350.10.a.i 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
70.10.a.c ✓ 2 5.c odd 4 1
350.10.a.i 2 5.c odd 4 1
350.10.c.h 4 1.a even 1 1 trivial
350.10.c.h 4 5.b even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{4} + 18994T_{3}^{2} + 61074225 \) acting on \(S_{10}^{\mathrm{new}}(350, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + 256)^{2} \) Copy content Toggle raw display
$3$ \( T^{4} + 18994 T^{2} + 61074225 \) Copy content Toggle raw display
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( (T^{2} + 5764801)^{2} \) Copy content Toggle raw display
$11$ \( (T^{2} + 43146 T + 38792025)^{2} \) Copy content Toggle raw display
$13$ \( T^{4} + \cdots + 25\!\cdots\!21 \) Copy content Toggle raw display
$17$ \( T^{4} + \cdots + 74\!\cdots\!29 \) Copy content Toggle raw display
$19$ \( (T^{2} - 436148 T - 352814900780)^{2} \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots + 25\!\cdots\!00 \) Copy content Toggle raw display
$29$ \( (T^{2} + \cdots - 10557354279231)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} + \cdots - 2867679401792)^{2} \) Copy content Toggle raw display
$37$ \( T^{4} + \cdots + 36\!\cdots\!00 \) Copy content Toggle raw display
$41$ \( (T^{2} + \cdots - 225216831250368)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + \cdots + 81\!\cdots\!24 \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots + 54\!\cdots\!81 \) Copy content Toggle raw display
$53$ \( T^{4} + \cdots + 42\!\cdots\!44 \) Copy content Toggle raw display
$59$ \( (T^{2} + \cdots - 23\!\cdots\!92)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + \cdots + 10\!\cdots\!08)^{2} \) Copy content Toggle raw display
$67$ \( T^{4} + \cdots + 17\!\cdots\!64 \) Copy content Toggle raw display
$71$ \( (T^{2} + \cdots - 35\!\cdots\!00)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} + \cdots + 46\!\cdots\!56 \) Copy content Toggle raw display
$79$ \( (T^{2} + \cdots + 49\!\cdots\!21)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 30\!\cdots\!04 \) Copy content Toggle raw display
$89$ \( (T^{2} + \cdots - 29\!\cdots\!20)^{2} \) Copy content Toggle raw display
$97$ \( T^{4} + \cdots + 25\!\cdots\!25 \) Copy content Toggle raw display
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