Properties

Label 2175.2.a.v
Level $2175$
Weight $2$
Character orbit 2175.a
Self dual yes
Analytic conductor $17.367$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2175,2,Mod(1,2175)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2175, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2175.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2175 = 3 \cdot 5^{2} \cdot 29 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2175.a (trivial)

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: yes
Analytic conductor: \(17.3674624396\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: 4.4.2225.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{3} - 5x^{2} + 2x + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 2 \)
Twist minimal: no (minimal twist has level 435)
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_1 + 1) q^{2} + q^{3} + (\beta_{2} - \beta_1 + 2) q^{4} + ( - \beta_1 + 1) q^{6} + (\beta_{3} + \beta_{2}) q^{7} + ( - \beta_{3} + 2 \beta_{2} + 4) q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_1 + 1) q^{2} + q^{3} + (\beta_{2} - \beta_1 + 2) q^{4} + ( - \beta_1 + 1) q^{6} + (\beta_{3} + \beta_{2}) q^{7} + ( - \beta_{3} + 2 \beta_{2} + 4) q^{8} + q^{9} + (\beta_{3} + \beta_{2}) q^{11} + (\beta_{2} - \beta_1 + 2) q^{12} + ( - \beta_{3} + \beta_{2} + 2 \beta_1 + 2) q^{13} + ( - \beta_{2} - \beta_1 - 1) q^{14} + ( - 3 \beta_{3} + 2 \beta_{2} + \cdots + 4) q^{16}+ \cdots + (\beta_{3} + \beta_{2}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 3 q^{2} + 4 q^{3} + 5 q^{4} + 3 q^{6} - 2 q^{7} + 12 q^{8} + 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 3 q^{2} + 4 q^{3} + 5 q^{4} + 3 q^{6} - 2 q^{7} + 12 q^{8} + 4 q^{9} - 2 q^{11} + 5 q^{12} + 8 q^{13} - 3 q^{14} + 11 q^{16} + 10 q^{17} + 3 q^{18} - 2 q^{19} - 2 q^{21} - 3 q^{22} + 12 q^{23} + 12 q^{24} - 7 q^{26} + 4 q^{27} + 9 q^{28} - 4 q^{29} - 4 q^{31} + 17 q^{32} - 2 q^{33} - q^{34} + 5 q^{36} + 16 q^{37} + 10 q^{38} + 8 q^{39} - 12 q^{41} - 3 q^{42} - 2 q^{43} + 9 q^{44} - 8 q^{46} + 12 q^{47} + 11 q^{48} + 6 q^{49} + 10 q^{51} + 3 q^{52} + 10 q^{53} + 3 q^{54} - 2 q^{57} - 3 q^{58} + 2 q^{59} - 26 q^{61} - 20 q^{62} - 2 q^{63} + 34 q^{64} - 3 q^{66} - 2 q^{67} - 9 q^{68} + 12 q^{69} - 10 q^{71} + 12 q^{72} + 48 q^{74} + 16 q^{76} + 34 q^{77} - 7 q^{78} + 22 q^{79} + 4 q^{81} - 38 q^{82} + 10 q^{83} + 9 q^{84} - 4 q^{86} - 4 q^{87} - 4 q^{89} - 8 q^{91} - 28 q^{92} - 4 q^{93} + 39 q^{94} + 17 q^{96} + 22 q^{97} - 34 q^{98} - 2 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - x^{3} - 5x^{2} + 2x + 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - \nu - 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} - \nu^{2} - 3\nu + 1 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + \beta _1 + 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} + \beta_{2} + 4\beta _1 + 2 \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
2.43828
1.13856
−0.820249
−1.75660
−1.43828 1.00000 0.0686587 0 −1.43828 2.74301 2.77782 1.00000 0
1.2 −0.138564 1.00000 −1.98080 0 −0.138564 −5.07830 0.551597 1.00000 0
1.3 1.82025 1.00000 1.31331 0 1.82025 0.729126 −1.24995 1.00000 0
1.4 2.75660 1.00000 5.59883 0 2.75660 −0.393832 9.92054 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \(-1\)
\(5\) \(1\)
\(29\) \(1\)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2175.2.a.v 4
3.b odd 2 1 6525.2.a.bi 4
5.b even 2 1 435.2.a.j 4
5.c odd 4 2 2175.2.c.n 8
15.d odd 2 1 1305.2.a.r 4
20.d odd 2 1 6960.2.a.co 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
435.2.a.j 4 5.b even 2 1
1305.2.a.r 4 15.d odd 2 1
2175.2.a.v 4 1.a even 1 1 trivial
2175.2.c.n 8 5.c odd 4 2
6525.2.a.bi 4 3.b odd 2 1
6960.2.a.co 4 20.d odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(2175))\):

\( T_{2}^{4} - 3T_{2}^{3} - 2T_{2}^{2} + 7T_{2} + 1 \) Copy content Toggle raw display
\( T_{7}^{4} + 2T_{7}^{3} - 15T_{7}^{2} + 4T_{7} + 4 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} - 3 T^{3} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( (T - 1)^{4} \) Copy content Toggle raw display
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( T^{4} + 2 T^{3} + \cdots + 4 \) Copy content Toggle raw display
$11$ \( T^{4} + 2 T^{3} + \cdots + 4 \) Copy content Toggle raw display
$13$ \( T^{4} - 8 T^{3} + \cdots - 164 \) Copy content Toggle raw display
$17$ \( T^{4} - 10 T^{3} + \cdots - 116 \) Copy content Toggle raw display
$19$ \( T^{4} + 2 T^{3} + \cdots - 16 \) Copy content Toggle raw display
$23$ \( T^{4} - 12 T^{3} + \cdots - 1024 \) Copy content Toggle raw display
$29$ \( (T + 1)^{4} \) Copy content Toggle raw display
$31$ \( T^{4} + 4 T^{3} + \cdots + 64 \) Copy content Toggle raw display
$37$ \( T^{4} - 16 T^{3} + \cdots - 2624 \) Copy content Toggle raw display
$41$ \( T^{4} + 12 T^{3} + \cdots - 1616 \) Copy content Toggle raw display
$43$ \( T^{4} + 2 T^{3} + \cdots + 1216 \) Copy content Toggle raw display
$47$ \( T^{4} - 12 T^{3} + \cdots - 64 \) Copy content Toggle raw display
$53$ \( T^{4} - 10 T^{3} + \cdots + 400 \) Copy content Toggle raw display
$59$ \( T^{4} - 2 T^{3} + \cdots + 10496 \) Copy content Toggle raw display
$61$ \( T^{4} + 26 T^{3} + \cdots - 11344 \) Copy content Toggle raw display
$67$ \( T^{4} + 2 T^{3} + \cdots - 124 \) Copy content Toggle raw display
$71$ \( T^{4} + 10 T^{3} + \cdots + 64 \) Copy content Toggle raw display
$73$ \( T^{4} - 84 T^{2} + \cdots - 256 \) Copy content Toggle raw display
$79$ \( T^{4} - 22 T^{3} + \cdots + 2416 \) Copy content Toggle raw display
$83$ \( T^{4} - 10 T^{3} + \cdots - 16 \) Copy content Toggle raw display
$89$ \( T^{4} + 4 T^{3} + \cdots + 10156 \) Copy content Toggle raw display
$97$ \( T^{4} - 22 T^{3} + \cdots + 2384 \) Copy content Toggle raw display
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