Properties

Label 900.2.w.b
Level $900$
Weight $2$
Character orbit 900.w
Analytic conductor $7.187$
Analytic rank $0$
Dimension $16$
Inner twists $4$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [900,2,Mod(109,900)] 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("900.109"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(900, base_ring=CyclotomicField(10)) chi = DirichletCharacter(H, H._module([0, 0, 7])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 900 = 2^{2} \cdot 3^{2} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 900.w (of order \(10\), degree \(4\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [16] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(7.18653618192\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(4\) over \(\Q(\zeta_{10})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 2x^{14} - 16x^{12} + 2x^{10} + 161x^{8} - 160x^{6} + 225x^{4} - 375x^{2} + 625 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 5^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{10}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{12} q^{5} + (\beta_{9} - \beta_{4} - \beta_{3}) q^{7} + (\beta_{13} - \beta_{11}) q^{11} + (\beta_{9} - \beta_{6} - \beta_{5} + \cdots - \beta_1) q^{13} + (\beta_{15} + \beta_{12} + \cdots + \beta_{2}) q^{17}+ \cdots + ( - 2 \beta_{9} - 2 \beta_{8} + \cdots + 2) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 2 q^{19} - 10 q^{25} + 6 q^{31} + 10 q^{37} + 16 q^{49} + 70 q^{55} - 16 q^{61} + 20 q^{67} + 60 q^{73} + 24 q^{79} - 40 q^{85} - 38 q^{91} + 20 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 2x^{14} - 16x^{12} + 2x^{10} + 161x^{8} - 160x^{6} + 225x^{4} - 375x^{2} + 625 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 424 \nu^{14} - 27053 \nu^{12} - 475624 \nu^{10} - 1162872 \nu^{8} + 7126104 \nu^{6} + \cdots - 65470000 ) / 88991375 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 424 \nu^{15} - 27053 \nu^{13} - 475624 \nu^{11} - 1162872 \nu^{9} + 7126104 \nu^{7} + \cdots - 154461375 \nu ) / 88991375 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 33864 \nu^{14} - 55722 \nu^{12} + 1114449 \nu^{10} + 2743022 \nu^{8} - 8400729 \nu^{6} + \cdots - 70231500 ) / 88991375 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 129364 \nu^{14} + 175022 \nu^{12} - 2459824 \nu^{10} - 6084772 \nu^{8} + 14968229 \nu^{6} + \cdots + 16012750 ) / 88991375 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 2721 \nu^{14} - 1887 \nu^{12} - 29946 \nu^{10} - 74713 \nu^{8} + 60391 \nu^{6} - 96005 \nu^{4} + \cdots - 380000 ) / 1618025 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 188171 \nu^{14} - 378462 \nu^{12} - 2875471 \nu^{10} + 2754462 \nu^{8} + 36109891 \nu^{6} + \cdots - 29255125 ) / 88991375 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 33864 \nu^{15} + 55722 \nu^{13} - 1114449 \nu^{11} - 2743022 \nu^{9} + 8400729 \nu^{7} + \cdots + 159222875 \nu ) / 88991375 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 278181 \nu^{14} - 1033862 \nu^{12} - 5047396 \nu^{10} + 7283237 \nu^{8} + 61495891 \nu^{6} + \cdots - 97130250 ) / 88991375 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 3470 \nu^{14} - 3120 \nu^{12} - 50748 \nu^{10} - 46875 \nu^{8} + 425000 \nu^{6} - 292500 \nu^{4} + \cdots - 1358751 ) / 711931 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 273046 \nu^{15} - 1535348 \nu^{13} + 1839391 \nu^{11} + 34311773 \nu^{9} + \cdots + 202542125 \nu ) / 444956875 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 96348 \nu^{15} - 65194 \nu^{13} + 2296623 \nu^{11} + 5667494 \nu^{9} - 20819708 \nu^{7} + \cdots + 96167375 \nu ) / 88991375 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 913556 \nu^{15} - 2979772 \nu^{13} - 16463101 \nu^{11} + 28464847 \nu^{9} + 212837346 \nu^{7} + \cdots - 256343375 \nu ) / 444956875 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 954849 \nu^{15} + 1593038 \nu^{13} + 15500754 \nu^{11} + 8757412 \nu^{9} + \cdots + 500401625 \nu ) / 444956875 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 225288 \nu^{15} - 267269 \nu^{13} + 4280823 \nu^{11} + 10589394 \nu^{9} - 28661833 \nu^{7} + \cdots + 14684625 \nu ) / 88991375 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 1895704 \nu^{15} + 3485348 \nu^{13} + 29878109 \nu^{11} - 5014898 \nu^{9} + \cdots + 646677250 \nu ) / 444956875 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{14} - 2\beta_{11} + \beta_{7} - 3\beta_{2} ) / 5 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{9} - \beta_{6} - \beta_{5} - \beta_{4} - \beta_{3} - \beta_1 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 5\beta_{15} + 3\beta_{14} + 10\beta_{12} - \beta_{11} - 10\beta_{10} + 3\beta_{7} + \beta_{2} ) / 5 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{8} - 2\beta_{6} - \beta_{5} + 4\beta_{4} + 8\beta_{3} + 3\beta _1 + 8 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 10\beta_{15} + 4\beta_{14} - 10\beta_{13} + 5\beta_{12} - 28\beta_{11} + 5\beta_{10} - 16\beta_{7} - 32\beta_{2} ) / 5 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 8\beta_{9} - 4\beta_{8} - 8\beta_{5} - 9\beta_{4} + 10\beta _1 + 18 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 20 \beta_{15} + 72 \beta_{14} + 60 \beta_{13} + 100 \beta_{12} - 99 \beta_{11} - 120 \beta_{10} + \cdots - 36 \beta_{2} ) / 5 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( 18\beta_{9} + 18\beta_{8} - 45\beta_{6} - 45\beta_{5} + 33\beta_{4} + 55\beta_{3} - 45\beta _1 + 33 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 270 \beta_{15} - 44 \beta_{14} - 90 \beta_{13} + 360 \beta_{12} - 77 \beta_{11} - 135 \beta_{10} + \cdots - 198 \beta_{2} ) / 5 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( 33\beta_{9} - 55\beta_{8} + 55\beta_{6} + 280\beta_{3} + 280\beta _1 + 448 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 165 \beta_{15} + 1008 \beta_{14} + 550 \beta_{13} + 275 \beta_{12} - 2016 \beta_{11} + \cdots - 1624 \beta_{2} ) / 5 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 448\beta_{9} - 448\beta_{6} - 728\beta_{5} - 8\beta_{4} - 8\beta_{3} - 723\beta_1 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 3640 \beta_{15} + 29 \beta_{14} + 1400 \beta_{13} + 7280 \beta_{12} - 18 \beta_{11} + \cdots + 18 \beta_{2} ) / 5 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( 13\beta_{8} - 21\beta_{6} - 13\beta_{5} + 2232\beta_{4} + 5859\beta_{3} + 2219\beta _1 + 5859 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 105 \beta_{15} + 5022 \beta_{14} - 105 \beta_{13} + 65 \beta_{12} - 21204 \beta_{11} + \cdots - 26226 \beta_{2} ) / 5 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/900\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(451\) \(577\)
\(\chi(n)\) \(1\) \(1\) \(-\beta_{4}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
109.1
1.10084 + 0.412453i
−0.648165 + 0.980739i
0.648165 0.980739i
−1.10084 0.412453i
1.10084 0.412453i
−0.648165 0.980739i
0.648165 + 0.980739i
−1.10084 + 0.412453i
−1.90024 0.0842796i
0.507053 1.83328i
−0.507053 + 1.83328i
1.90024 + 0.0842796i
−1.90024 + 0.0842796i
0.507053 + 1.83328i
−0.507053 1.83328i
1.90024 0.0842796i
0 0 0 −1.86548 1.23288i 0 1.81618i 0 0 0
109.2 0 0 0 −0.784532 + 2.09392i 0 2.54272i 0 0 0
109.3 0 0 0 0.784532 2.09392i 0 2.54272i 0 0 0
109.4 0 0 0 1.86548 + 1.23288i 0 1.81618i 0 0 0
289.1 0 0 0 −1.86548 + 1.23288i 0 1.81618i 0 0 0
289.2 0 0 0 −0.784532 2.09392i 0 2.54272i 0 0 0
289.3 0 0 0 0.784532 + 2.09392i 0 2.54272i 0 0 0
289.4 0 0 0 1.86548 1.23288i 0 1.81618i 0 0 0
469.1 0 0 0 −2.15515 0.596077i 0 0.640608i 0 0 0
469.2 0 0 0 −0.0990766 + 2.23387i 0 3.71829i 0 0 0
469.3 0 0 0 0.0990766 2.23387i 0 3.71829i 0 0 0
469.4 0 0 0 2.15515 + 0.596077i 0 0.640608i 0 0 0
829.1 0 0 0 −2.15515 + 0.596077i 0 0.640608i 0 0 0
829.2 0 0 0 −0.0990766 2.23387i 0 3.71829i 0 0 0
829.3 0 0 0 0.0990766 + 2.23387i 0 3.71829i 0 0 0
829.4 0 0 0 2.15515 0.596077i 0 0.640608i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 109.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
25.e even 10 1 inner
75.h odd 10 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 900.2.w.b 16
3.b odd 2 1 inner 900.2.w.b 16
25.e even 10 1 inner 900.2.w.b 16
75.h odd 10 1 inner 900.2.w.b 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
900.2.w.b 16 1.a even 1 1 trivial
900.2.w.b 16 3.b odd 2 1 inner
900.2.w.b 16 25.e even 10 1 inner
900.2.w.b 16 75.h odd 10 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{8} + 24T_{7}^{6} + 166T_{7}^{4} + 359T_{7}^{2} + 121 \) acting on \(S_{2}^{\mathrm{new}}(900, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( T^{16} + 5 T^{14} + \cdots + 390625 \) Copy content Toggle raw display
$7$ \( (T^{8} + 24 T^{6} + \cdots + 121)^{2} \) Copy content Toggle raw display
$11$ \( T^{16} + 20 T^{14} + \cdots + 625 \) Copy content Toggle raw display
$13$ \( (T^{8} - 19 T^{6} + \cdots + 121)^{2} \) Copy content Toggle raw display
$17$ \( T^{16} + 15 T^{14} + \cdots + 625 \) Copy content Toggle raw display
$19$ \( (T^{8} - T^{7} + \cdots + 10201)^{2} \) Copy content Toggle raw display
$23$ \( T^{16} - 15 T^{14} + \cdots + 625 \) Copy content Toggle raw display
$29$ \( T^{16} + 65 T^{14} + \cdots + 625 \) Copy content Toggle raw display
$31$ \( (T^{8} - 3 T^{7} + \cdots + 10201)^{2} \) Copy content Toggle raw display
$37$ \( (T^{8} - 5 T^{7} + \cdots + 255025)^{2} \) Copy content Toggle raw display
$41$ \( T^{16} + \cdots + 442050625 \) Copy content Toggle raw display
$43$ \( (T^{8} + 86 T^{6} + \cdots + 73441)^{2} \) Copy content Toggle raw display
$47$ \( T^{16} + \cdots + 8653650625 \) Copy content Toggle raw display
$53$ \( T^{16} + \cdots + 6472063200625 \) Copy content Toggle raw display
$59$ \( T^{16} + \cdots + 276281640625 \) Copy content Toggle raw display
$61$ \( (T^{8} + 8 T^{7} + \cdots + 326041)^{2} \) Copy content Toggle raw display
$67$ \( (T^{8} - 10 T^{7} + \cdots + 73441)^{2} \) Copy content Toggle raw display
$71$ \( T^{16} + \cdots + 26\!\cdots\!25 \) Copy content Toggle raw display
$73$ \( (T^{4} - 15 T^{3} + \cdots + 605)^{4} \) Copy content Toggle raw display
$79$ \( (T^{8} - 12 T^{7} + \cdots + 3500641)^{2} \) Copy content Toggle raw display
$83$ \( T^{16} + \cdots + 24\!\cdots\!25 \) Copy content Toggle raw display
$89$ \( T^{16} + \cdots + 36\!\cdots\!25 \) Copy content Toggle raw display
$97$ \( (T^{8} - 10 T^{7} + \cdots + 755161)^{2} \) Copy content Toggle raw display
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