Properties

Label 375.2.e.b
Level $375$
Weight $2$
Character orbit 375.e
Analytic conductor $2.994$
Analytic rank $0$
Dimension $16$
CM discriminant -15
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [375,2,Mod(68,375)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(375, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([2, 3]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("375.68");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 375 = 3 \cdot 5^{3} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 375.e (of order \(4\), degree \(2\), minimal)

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: no
Analytic conductor: \(2.99439007580\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(i)\)
Coefficient field: 16.0.6879707136000000000000.2
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} + 21x^{12} + 86x^{8} + 36x^{4} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 5^{8} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{4}]$

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

\(f(q)\) \(=\) \( q - \beta_{3} q^{2} + \beta_1 q^{3} + (\beta_{9} - 2 \beta_{6}) q^{4} + ( - \beta_{5} + 1) q^{6} + (\beta_{8} + 3 \beta_{4} + \beta_1) q^{8} + 3 \beta_{6} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{3} q^{2} + \beta_1 q^{3} + (\beta_{9} - 2 \beta_{6}) q^{4} + ( - \beta_{5} + 1) q^{6} + (\beta_{8} + 3 \beta_{4} + \beta_1) q^{8} + 3 \beta_{6} q^{9} + ( - \beta_{15} - \beta_{13} + 2 \beta_{11}) q^{12} + (\beta_{10} + 2 \beta_{2} - 6) q^{16} + (\beta_{15} - \beta_{11} - \beta_{3}) q^{17} - 3 \beta_{4} q^{18} + ( - \beta_{14} + \beta_{7} + \beta_{6}) q^{19} + ( - \beta_{12} - 2 \beta_{8} + \cdots - \beta_1) q^{23}+ \cdots + 7 \beta_{4} q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 12 q^{6}+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 12 q^{6} - 100 q^{16} + 32 q^{31} + 108 q^{36} + 24 q^{46} - 48 q^{51} - 8 q^{61} + 16 q^{76} - 144 q^{81} - 24 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} + 21x^{12} + 86x^{8} + 36x^{4} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 35\nu^{13} + 775\nu^{9} + 3704\nu^{5} + 2905\nu ) / 671 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 42\nu^{12} + 930\nu^{8} + 4579\nu^{4} + 2815 ) / 671 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -48\nu^{15} - 967\nu^{11} - 3316\nu^{7} + 713\nu^{3} ) / 671 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 48\nu^{13} + 967\nu^{9} + 3316\nu^{5} - 42\nu ) / 671 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 49\nu^{12} + 1085\nu^{8} + 4783\nu^{4} + 712 ) / 671 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 90\nu^{14} + 1897\nu^{10} + 7895\nu^{6} + 4115\nu^{2} ) / 671 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 166\nu^{14} + 3484\nu^{10} + 14040\nu^{6} + 3713\nu^{2} ) / 671 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( -214\nu^{13} - 4451\nu^{9} - 17356\nu^{5} - 2329\nu ) / 671 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 443\nu^{14} + 9330\nu^{10} + 38600\nu^{6} + 16639\nu^{2} ) / 671 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( -324\nu^{12} - 6695\nu^{8} - 25738\nu^{4} - 4749 ) / 671 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( -443\nu^{15} - 9330\nu^{11} - 38600\nu^{7} - 17310\nu^{3} ) / 671 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 511\nu^{13} + 10644\nu^{9} + 42403\nu^{5} + 14231\nu ) / 671 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 580\nu^{15} + 12076\nu^{11} + 47673\nu^{7} + 11906\nu^{3} ) / 671 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( -1036\nu^{14} - 21598\nu^{10} - 85885\nu^{6} - 25598\nu^{2} ) / 671 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( -2558\nu^{15} - 53574\nu^{11} - 217087\nu^{7} - 81469\nu^{3} ) / 671 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{8} + 3\beta_{4} + 2\beta_1 ) / 5 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -2\beta_{9} + \beta_{7} + 8\beta_{6} ) / 5 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{15} - \beta_{13} - 6\beta_{11} - 10\beta_{3} ) / 5 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -6\beta_{5} + 7\beta_{2} - 23 ) / 5 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( \beta_{12} - 7\beta_{4} - 5\beta_1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -\beta_{14} + 24\beta_{9} - 28\beta_{7} - 78\beta_{6} ) / 5 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -22\beta_{15} - 7\beta_{13} + 104\beta_{11} + 128\beta_{3} ) / 5 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 7\beta_{10} + 120\beta_{5} - 86\beta_{2} + 283 ) / 5 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( -92\beta_{12} - 42\beta_{8} + 483\beta_{4} + 424\beta_1 ) / 5 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( 7\beta_{14} - 64\beta_{9} + 99\beta_{7} + 213\beta_{6} \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 375\beta_{15} + 197\beta_{13} - 1706\beta_{11} - 1859\beta_{3} ) / 5 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( -155\beta_{10} - 2003\beta_{5} + 1221\beta_{2} - 4094 ) / 5 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 1508\beta_{12} + 847\beta_{8} - 7240\beta_{4} - 6813\beta_1 ) / 5 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( -650\beta_{14} + 4731\beta_{9} - 8023\beta_{7} - 15934\beta_{6} ) / 5 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( -1204\beta_{15} - 700\beta_{13} + 5419\beta_{11} + 5678\beta_{3} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/375\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(251\)
\(\chi(n)\) \(\beta_{6}\) \(-1\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
68.1
1.05097 1.05097i
1.40647 1.40647i
−0.575212 + 0.575212i
−0.294032 + 0.294032i
0.294032 0.294032i
0.575212 0.575212i
−1.40647 + 1.40647i
−1.05097 + 1.05097i
1.05097 + 1.05097i
1.40647 + 1.40647i
−0.575212 0.575212i
−0.294032 0.294032i
0.294032 + 0.294032i
0.575212 + 0.575212i
−1.40647 1.40647i
−1.05097 1.05097i
−1.92021 1.92021i −1.22474 + 1.22474i 5.37441i 0 4.70353 0 6.47957 6.47957i 3.00000i 0
68.2 −1.88222 1.88222i 1.22474 1.22474i 5.08550i 0 −4.61048 0 5.80759 5.80759i 3.00000i 0
68.3 −1.12529 1.12529i −1.22474 + 1.22474i 0.532535i 0 2.75638 0 −1.65132 + 1.65132i 3.00000i 0
68.4 −0.0614693 0.0614693i −1.22474 + 1.22474i 1.99244i 0 0.150568 0 −0.245413 + 0.245413i 3.00000i 0
68.5 0.0614693 + 0.0614693i 1.22474 1.22474i 1.99244i 0 0.150568 0 0.245413 0.245413i 3.00000i 0
68.6 1.12529 + 1.12529i 1.22474 1.22474i 0.532535i 0 2.75638 0 1.65132 1.65132i 3.00000i 0
68.7 1.88222 + 1.88222i −1.22474 + 1.22474i 5.08550i 0 −4.61048 0 −5.80759 + 5.80759i 3.00000i 0
68.8 1.92021 + 1.92021i 1.22474 1.22474i 5.37441i 0 4.70353 0 −6.47957 + 6.47957i 3.00000i 0
182.1 −1.92021 + 1.92021i −1.22474 1.22474i 5.37441i 0 4.70353 0 6.47957 + 6.47957i 3.00000i 0
182.2 −1.88222 + 1.88222i 1.22474 + 1.22474i 5.08550i 0 −4.61048 0 5.80759 + 5.80759i 3.00000i 0
182.3 −1.12529 + 1.12529i −1.22474 1.22474i 0.532535i 0 2.75638 0 −1.65132 1.65132i 3.00000i 0
182.4 −0.0614693 + 0.0614693i −1.22474 1.22474i 1.99244i 0 0.150568 0 −0.245413 0.245413i 3.00000i 0
182.5 0.0614693 0.0614693i 1.22474 + 1.22474i 1.99244i 0 0.150568 0 0.245413 + 0.245413i 3.00000i 0
182.6 1.12529 1.12529i 1.22474 + 1.22474i 0.532535i 0 2.75638 0 1.65132 + 1.65132i 3.00000i 0
182.7 1.88222 1.88222i −1.22474 1.22474i 5.08550i 0 −4.61048 0 −5.80759 5.80759i 3.00000i 0
182.8 1.92021 1.92021i 1.22474 + 1.22474i 5.37441i 0 4.70353 0 −6.47957 6.47957i 3.00000i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 68.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
15.d odd 2 1 CM by \(\Q(\sqrt{-15}) \)
3.b odd 2 1 inner
5.b even 2 1 inner
5.c odd 4 2 inner
15.e even 4 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 375.2.e.b 16
3.b odd 2 1 inner 375.2.e.b 16
5.b even 2 1 inner 375.2.e.b 16
5.c odd 4 2 inner 375.2.e.b 16
15.d odd 2 1 CM 375.2.e.b 16
15.e even 4 2 inner 375.2.e.b 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
375.2.e.b 16 1.a even 1 1 trivial
375.2.e.b 16 3.b odd 2 1 inner
375.2.e.b 16 5.b even 2 1 inner
375.2.e.b 16 5.c odd 4 2 inner
375.2.e.b 16 15.d odd 2 1 CM
375.2.e.b 16 15.e even 4 2 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{16} + 111T_{2}^{12} + 3401T_{2}^{8} + 17511T_{2}^{4} + 1 \) acting on \(S_{2}^{\mathrm{new}}(375, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} + 111 T^{12} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( (T^{4} + 9)^{4} \) Copy content Toggle raw display
$5$ \( T^{16} \) Copy content Toggle raw display
$7$ \( T^{16} \) Copy content Toggle raw display
$11$ \( T^{16} \) Copy content Toggle raw display
$13$ \( T^{16} \) Copy content Toggle raw display
$17$ \( T^{16} + \cdots + 12003612721 \) Copy content Toggle raw display
$19$ \( (T^{8} + 174 T^{6} + \cdots + 292681)^{2} \) Copy content Toggle raw display
$23$ \( T^{16} + \cdots + 3941340648961 \) Copy content Toggle raw display
$29$ \( T^{16} \) Copy content Toggle raw display
$31$ \( (T^{4} - 8 T^{3} + \cdots - 1019)^{4} \) Copy content Toggle raw display
$37$ \( T^{16} \) Copy content Toggle raw display
$41$ \( T^{16} \) Copy content Toggle raw display
$43$ \( T^{16} \) Copy content Toggle raw display
$47$ \( T^{16} + \cdots + 50897394646081 \) Copy content Toggle raw display
$53$ \( T^{16} + 47406 T^{12} + \cdots + 707281 \) Copy content Toggle raw display
$59$ \( T^{16} \) Copy content Toggle raw display
$61$ \( (T^{4} + 2 T^{3} + \cdots + 17401)^{4} \) Copy content Toggle raw display
$67$ \( T^{16} \) Copy content Toggle raw display
$71$ \( T^{16} \) Copy content Toggle raw display
$73$ \( T^{16} \) Copy content Toggle raw display
$79$ \( (T^{8} + 534 T^{6} + \cdots + 19175641)^{2} \) Copy content Toggle raw display
$83$ \( T^{16} + \cdots + 76\!\cdots\!61 \) Copy content Toggle raw display
$89$ \( T^{16} \) Copy content Toggle raw display
$97$ \( T^{16} \) Copy content Toggle raw display
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