Properties

Label 1575.2.m.f
Level $1575$
Weight $2$
Character orbit 1575.m
Analytic conductor $12.576$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $4$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1575,2,Mod(1268,1575)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1575, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([2, 3, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1575.1268");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1575 = 3^{2} \cdot 5^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1575.m (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: \(12.5764383184\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(i)\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 8x^{14} + 49x^{12} - 104x^{10} + 160x^{8} - 104x^{6} + 49x^{4} - 8x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{4} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-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.

\(f(q)\) \(=\) \( q + (\beta_{12} + \beta_{5} + \beta_{2} + 1) q^{2} + (2 \beta_{12} + \beta_{10} + \cdots + \beta_{2}) q^{4}+ \cdots + (2 \beta_{12} + \beta_{10} + \beta_{7} + \cdots - 1) q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + (\beta_{12} + \beta_{5} + \beta_{2} + 1) q^{2} + (2 \beta_{12} + \beta_{10} + \cdots + \beta_{2}) q^{4}+ \cdots + ( - \beta_{12} - \beta_{10} + \beta_{8} + 1) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 4 q^{2} - 16 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 4 q^{2} - 16 q^{8} - 8 q^{16} - 8 q^{17} - 48 q^{23} - 16 q^{31} + 12 q^{32} - 80 q^{38} - 72 q^{46} - 40 q^{47} - 32 q^{53} + 112 q^{61} + 8 q^{62} - 96 q^{68} - 48 q^{76} - 16 q^{83} - 16 q^{91} - 36 q^{92} + 4 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 8x^{14} + 49x^{12} - 104x^{10} + 160x^{8} - 104x^{6} + 49x^{4} - 8x^{2} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 23 \nu^{15} + 112 \nu^{13} - 1152 \nu^{11} + 11432 \nu^{9} - 22976 \nu^{7} + 36864 \nu^{5} + \cdots + 4720 \nu ) / 3168 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 83\nu^{14} - 626\nu^{12} + 3648\nu^{10} - 5944\nu^{8} + 4528\nu^{6} + 4704\nu^{4} - 6973\nu^{2} + 1678 ) / 3168 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 353 \nu^{14} - 3056 \nu^{12} + 18912 \nu^{10} - 46120 \nu^{8} + 68896 \nu^{6} - 49728 \nu^{4} + \cdots - 1616 ) / 3168 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 356 \nu^{15} - 3017 \nu^{13} + 18624 \nu^{11} - 44032 \nu^{9} + 66760 \nu^{7} - 50016 \nu^{5} + \cdots + 103 \nu ) / 3168 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 379\nu^{14} - 2905\nu^{12} + 17472\nu^{10} - 32600\nu^{8} + 43784\nu^{6} - 13152\nu^{4} - 5237\nu^{2} + 1655 ) / 3168 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 127\nu^{15} - 945\nu^{13} + 5760\nu^{11} - 10520\nu^{9} + 17640\nu^{7} - 10080\nu^{5} + 8911\nu^{3} - 225\nu ) / 1056 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 140\nu^{14} - 1051\nu^{12} + 6272\nu^{10} - 10976\nu^{8} + 14104\nu^{6} - 3584\nu^{4} + 588\nu^{2} - 1323 ) / 1056 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 442\nu^{14} - 3307\nu^{12} + 19872\nu^{10} - 35216\nu^{8} + 49880\nu^{6} - 18144\nu^{4} + 9178\nu^{2} + 101 ) / 3168 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 196 \nu^{15} - 1533 \nu^{13} + 9344 \nu^{11} - 18816 \nu^{9} + 28616 \nu^{7} - 16352 \nu^{5} + \cdots - 365 \nu ) / 1056 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( -611\nu^{14} + 4487\nu^{12} - 26880\nu^{10} + 45016\nu^{8} - 62872\nu^{6} + 12192\nu^{4} - 9395\nu^{2} - 457 ) / 3168 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 53\nu^{15} - 485\nu^{13} + 3072\nu^{11} - 8392\nu^{9} + 14152\nu^{7} - 13728\nu^{5} + 6629\nu^{3} - 1877\nu ) / 288 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( -59\nu^{14} + 476\nu^{12} - 2916\nu^{10} + 6280\nu^{8} - 9538\nu^{6} + 6192\nu^{4} - 2351\nu^{2} + 260 ) / 198 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 967 \nu^{15} - 7504 \nu^{13} + 45504 \nu^{11} - 89048 \nu^{9} + 129632 \nu^{7} - 62208 \nu^{5} + \cdots - 2608 \nu ) / 3168 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 598 \nu^{15} - 4711 \nu^{13} + 28656 \nu^{11} - 58112 \nu^{9} + 85064 \nu^{7} - 44208 \nu^{5} + \cdots + 2105 \nu ) / 1584 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 1049 \nu^{15} + 8330 \nu^{13} - 50832 \nu^{11} + 105544 \nu^{9} - 158368 \nu^{7} + 94896 \nu^{5} + \cdots + 5210 \nu ) / 1584 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{13} + \beta_{9} + \beta_{4} + \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{12} - \beta_{10} - 3\beta_{8} + \beta_{7} - \beta_{5} - \beta_{3} + \beta_{2} + 2 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{15} - \beta_{14} + \beta_{13} + 4\beta_{9} - \beta_{6} + \beta_{4} \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -6\beta_{12} - 2\beta_{10} - 5\beta_{8} - 5\beta_{7} - 4\beta_{5} - 7\beta_{3} + 17\beta_{2} - 9 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 10\beta_{15} - 2\beta_{14} + 21\beta_{13} - 7\beta_{11} + 21\beta_{9} - 5\beta_{6} - 7\beta_{4} - 35\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 7\beta_{10} + 34\beta_{8} - 26\beta_{7} - 7\beta_{5} + 34\beta_{2} - 47 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 16 \beta_{15} + 52 \beta_{14} + 33 \beta_{13} - 42 \beta_{11} - 115 \beta_{9} + 26 \beta_{6} + \cdots - 197 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 197\beta_{12} + 115\beta_{10} + 521\beta_{8} - 141\beta_{7} + 33\beta_{5} + 239\beta_{3} - 141\beta_{2} - 256 ) / 2 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( -190\beta_{15} + 190\beta_{14} - 231\beta_{13} - 636\beta_{9} + 141\beta_{6} - 231\beta_{4} \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( 1098 \beta_{12} + 174 \beta_{10} + 777 \beta_{8} + 777 \beta_{7} + 636 \beta_{5} + 1337 \beta_{3} + \cdots + 1413 ) / 2 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 1554 \beta_{15} + 560 \beta_{14} - 3527 \beta_{13} + 1337 \beta_{11} - 3527 \beta_{9} + \cdots + 6103 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( -1288\beta_{10} - 5872\beta_{8} + 4304\beta_{7} + 1288\beta_{5} - 5872\beta_{2} + 7831 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 3136 \beta_{15} - 8608 \beta_{14} - 5255 \beta_{13} + 7440 \beta_{11} + 19575 \beta_{9} + \cdots + 33895 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( - 33895 \beta_{12} - 19575 \beta_{10} - 89093 \beta_{8} + 23879 \beta_{7} - 5255 \beta_{5} + \cdots + 43454 ) / 2 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( 32607\beta_{15} - 32607\beta_{14} + 39767\beta_{13} + 108668\beta_{9} - 23879\beta_{6} + 39767\beta_{4} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1575\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(451\) \(1226\)
\(\chi(n)\) \(-\beta_{12}\) \(1\) \(-1\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1268.1
0.670418 + 0.387066i
−0.670418 0.387066i
−2.04058 + 1.17813i
2.04058 1.17813i
−1.11871 0.645885i
1.11871 + 0.645885i
0.367543 0.212201i
−0.367543 + 0.212201i
0.670418 0.387066i
−0.670418 + 0.387066i
−2.04058 1.17813i
2.04058 + 1.17813i
−1.11871 + 0.645885i
1.11871 0.645885i
0.367543 + 0.212201i
−0.367543 0.212201i
−0.913419 0.913419i 0 0.331331i 0 0 −0.707107 + 0.707107i −2.12948 + 2.12948i 0 0
1268.2 −0.913419 0.913419i 0 0.331331i 0 0 0.707107 0.707107i −2.12948 + 2.12948i 0 0
1268.3 −0.300098 0.300098i 0 1.81988i 0 0 −0.707107 + 0.707107i −1.14634 + 1.14634i 0 0
1268.4 −0.300098 0.300098i 0 1.81988i 0 0 0.707107 0.707107i −1.14634 + 1.14634i 0 0
1268.5 0.547394 + 0.547394i 0 1.40072i 0 0 −0.707107 + 0.707107i 1.86153 1.86153i 0 0
1268.6 0.547394 + 0.547394i 0 1.40072i 0 0 0.707107 0.707107i 1.86153 1.86153i 0 0
1268.7 1.66612 + 1.66612i 0 3.55193i 0 0 −0.707107 + 0.707107i −2.58571 + 2.58571i 0 0
1268.8 1.66612 + 1.66612i 0 3.55193i 0 0 0.707107 0.707107i −2.58571 + 2.58571i 0 0
1457.1 −0.913419 + 0.913419i 0 0.331331i 0 0 −0.707107 0.707107i −2.12948 2.12948i 0 0
1457.2 −0.913419 + 0.913419i 0 0.331331i 0 0 0.707107 + 0.707107i −2.12948 2.12948i 0 0
1457.3 −0.300098 + 0.300098i 0 1.81988i 0 0 −0.707107 0.707107i −1.14634 1.14634i 0 0
1457.4 −0.300098 + 0.300098i 0 1.81988i 0 0 0.707107 + 0.707107i −1.14634 1.14634i 0 0
1457.5 0.547394 0.547394i 0 1.40072i 0 0 −0.707107 0.707107i 1.86153 + 1.86153i 0 0
1457.6 0.547394 0.547394i 0 1.40072i 0 0 0.707107 + 0.707107i 1.86153 + 1.86153i 0 0
1457.7 1.66612 1.66612i 0 3.55193i 0 0 −0.707107 0.707107i −2.58571 2.58571i 0 0
1457.8 1.66612 1.66612i 0 3.55193i 0 0 0.707107 + 0.707107i −2.58571 2.58571i 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1268.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.c odd 4 1 inner
15.d odd 2 1 inner
15.e even 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1575.2.m.f yes 16
3.b odd 2 1 1575.2.m.e 16
5.b even 2 1 1575.2.m.e 16
5.c odd 4 1 1575.2.m.e 16
5.c odd 4 1 inner 1575.2.m.f yes 16
15.d odd 2 1 inner 1575.2.m.f yes 16
15.e even 4 1 1575.2.m.e 16
15.e even 4 1 inner 1575.2.m.f yes 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1575.2.m.e 16 3.b odd 2 1
1575.2.m.e 16 5.b even 2 1
1575.2.m.e 16 5.c odd 4 1
1575.2.m.e 16 15.e even 4 1
1575.2.m.f yes 16 1.a even 1 1 trivial
1575.2.m.f yes 16 5.c odd 4 1 inner
1575.2.m.f yes 16 15.d odd 2 1 inner
1575.2.m.f yes 16 15.e even 4 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{8} - 2T_{2}^{7} + 2T_{2}^{6} + 4T_{2}^{5} + 7T_{2}^{4} - 4T_{2}^{3} + 2T_{2}^{2} + 2T_{2} + 1 \) acting on \(S_{2}^{\mathrm{new}}(1575, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{8} - 2 T^{7} + 2 T^{6} + \cdots + 1)^{2} \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( T^{16} \) Copy content Toggle raw display
$7$ \( (T^{4} + 1)^{4} \) Copy content Toggle raw display
$11$ \( (T^{8} + 48 T^{6} + 570 T^{4} + \cdots + 9)^{2} \) Copy content Toggle raw display
$13$ \( T^{16} + 736 T^{12} + \cdots + 65536 \) Copy content Toggle raw display
$17$ \( (T^{8} + 4 T^{7} + \cdots + 43264)^{2} \) Copy content Toggle raw display
$19$ \( (T^{8} + 136 T^{6} + \cdots + 135424)^{2} \) Copy content Toggle raw display
$23$ \( (T^{8} + 24 T^{7} + \cdots + 19881)^{2} \) Copy content Toggle raw display
$29$ \( (T^{8} - 80 T^{6} + \cdots + 11881)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} + 4 T^{3} + \cdots + 208)^{4} \) Copy content Toggle raw display
$37$ \( T^{16} + \cdots + 43617904801 \) Copy content Toggle raw display
$41$ \( (T^{8} + 176 T^{6} + \cdots + 4096)^{2} \) Copy content Toggle raw display
$43$ \( T^{16} + 19396 T^{12} + \cdots + 4879681 \) Copy content Toggle raw display
$47$ \( (T^{8} + 20 T^{7} + \cdots + 43264)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} + 16 T^{7} + \cdots + 110224)^{2} \) Copy content Toggle raw display
$59$ \( (T^{8} - 368 T^{6} + \cdots + 14868736)^{2} \) Copy content Toggle raw display
$61$ \( (T^{4} - 28 T^{3} + \cdots + 832)^{4} \) Copy content Toggle raw display
$67$ \( T^{16} + \cdots + 23811286661761 \) Copy content Toggle raw display
$71$ \( (T^{8} + 464 T^{6} + \cdots + 28270489)^{2} \) Copy content Toggle raw display
$73$ \( T^{16} + \cdots + 8590432731136 \) Copy content Toggle raw display
$79$ \( (T^{8} + 244 T^{6} + \cdots + 786769)^{2} \) Copy content Toggle raw display
$83$ \( (T^{8} + 8 T^{7} + \cdots + 42823936)^{2} \) Copy content Toggle raw display
$89$ \( (T^{8} - 224 T^{6} + \cdots + 6310144)^{2} \) Copy content Toggle raw display
$97$ \( T^{16} + \cdots + 1871773696 \) Copy content Toggle raw display
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