Properties

Label 450.2.q.a
Level $450$
Weight $2$
Character orbit 450.q
Analytic conductor $3.593$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [450,2,Mod(31,450)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(450, base_ring=CyclotomicField(30))
 
chi = DirichletCharacter(H, H._module([10, 12]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("450.31");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 450 = 2 \cdot 3^{2} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 450.q (of order \(15\), degree \(8\), 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: \(3.59326809096\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: \(\Q(\zeta_{15})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{7} + x^{5} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{15}]$

$q$-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 primitive root of unity \(\zeta_{15}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \zeta_{15}^{6} - \zeta_{15}) q^{2} + ( - \zeta_{15}^{7} + \zeta_{15}^{2}) q^{3} + \zeta_{15}^{7} q^{4} + (\zeta_{15}^{7} - 2 \zeta_{15}^{5} + \cdots - 2) q^{5}+ \cdots + ( - 3 \zeta_{15}^{7} + 3 \zeta_{15}^{6} + \cdots + 3) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{15}^{6} - \zeta_{15}) q^{2} + ( - \zeta_{15}^{7} + \zeta_{15}^{2}) q^{3} + \zeta_{15}^{7} q^{4} + (\zeta_{15}^{7} - 2 \zeta_{15}^{5} + \cdots - 2) q^{5}+ \cdots + ( - 3 \zeta_{15}^{7} - 6 \zeta_{15}^{5} + \cdots + 3) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + q^{2} + q^{4} - 5 q^{5} + 3 q^{6} - 8 q^{7} - 2 q^{8} + 6 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + q^{2} + q^{4} - 5 q^{5} + 3 q^{6} - 8 q^{7} - 2 q^{8} + 6 q^{9} + 10 q^{10} + 5 q^{11} - 3 q^{12} + 6 q^{13} + 7 q^{14} - 15 q^{15} + q^{16} + 2 q^{17} + 12 q^{18} + 14 q^{19} + 5 q^{20} - 9 q^{21} + 5 q^{23} + 5 q^{25} + 28 q^{26} + 6 q^{28} - 6 q^{29} + 15 q^{31} - 4 q^{32} + 9 q^{34} + 10 q^{35} - 3 q^{36} - 24 q^{37} + 3 q^{38} - 18 q^{39} + 4 q^{41} + 9 q^{42} + 4 q^{43} - 15 q^{45} + 10 q^{46} - 14 q^{47} + 3 q^{48} - 8 q^{49} - 20 q^{50} + 6 q^{52} + 14 q^{53} - 9 q^{54} + 20 q^{55} - 3 q^{56} - 6 q^{58} - 14 q^{59} + 15 q^{60} - 29 q^{61} + 30 q^{62} - 21 q^{63} - 2 q^{64} + 20 q^{65} - 15 q^{66} + 7 q^{67} - 16 q^{68} + 15 q^{69} - 5 q^{70} - 12 q^{71} + 6 q^{72} + 12 q^{73} - 28 q^{74} + 15 q^{75} + 8 q^{76} + 25 q^{77} - 18 q^{79} - 10 q^{80} - 18 q^{81} + 12 q^{82} + 4 q^{83} - 20 q^{85} - 11 q^{86} - 3 q^{87} + 5 q^{88} - 30 q^{89} - 30 q^{90} - 64 q^{91} - 5 q^{92} - 14 q^{94} - 20 q^{95} - 3 q^{96} - 8 q^{97} - 44 q^{98} + 30 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/450\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(127\)
\(\chi(n)\) \(-1 - \zeta_{15}^{5}\) \(-\zeta_{15}^{2} - \zeta_{15}^{7}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
31.1
−0.978148 0.207912i
0.913545 + 0.406737i
0.669131 + 0.743145i
−0.104528 0.994522i
−0.104528 + 0.994522i
0.669131 0.743145i
0.913545 0.406737i
−0.978148 + 0.207912i
0.669131 0.743145i 1.01807 + 1.40126i −0.104528 0.994522i 0.233733 + 2.22382i 1.72256 + 0.181049i 0.118034 + 0.204441i −0.809017 0.587785i −0.927051 + 2.85317i 1.80902 + 1.31433i
61.1 −0.104528 0.994522i 1.64728 + 0.535233i −0.978148 + 0.207912i −2.18720 + 0.464905i 0.360114 1.69420i −2.11803 + 3.66854i 0.309017 + 0.951057i 2.42705 + 1.76336i 0.690983 + 2.12663i
121.1 −0.978148 + 0.207912i −1.01807 + 1.40126i 0.913545 0.406737i −2.04275 + 0.909491i 0.704489 1.58231i 0.118034 + 0.204441i −0.809017 + 0.587785i −0.927051 2.85317i 1.80902 1.31433i
211.1 0.913545 + 0.406737i −1.64728 0.535233i 0.669131 + 0.743145i 1.49622 + 1.66172i −1.28716 1.15897i −2.11803 3.66854i 0.309017 + 0.951057i 2.42705 + 1.76336i 0.690983 + 2.12663i
241.1 0.913545 0.406737i −1.64728 + 0.535233i 0.669131 0.743145i 1.49622 1.66172i −1.28716 + 1.15897i −2.11803 + 3.66854i 0.309017 0.951057i 2.42705 1.76336i 0.690983 2.12663i
331.1 −0.978148 0.207912i −1.01807 1.40126i 0.913545 + 0.406737i −2.04275 0.909491i 0.704489 + 1.58231i 0.118034 0.204441i −0.809017 0.587785i −0.927051 + 2.85317i 1.80902 + 1.31433i
391.1 −0.104528 + 0.994522i 1.64728 0.535233i −0.978148 0.207912i −2.18720 0.464905i 0.360114 + 1.69420i −2.11803 3.66854i 0.309017 0.951057i 2.42705 1.76336i 0.690983 2.12663i
421.1 0.669131 + 0.743145i 1.01807 1.40126i −0.104528 + 0.994522i 0.233733 2.22382i 1.72256 0.181049i 0.118034 0.204441i −0.809017 + 0.587785i −0.927051 2.85317i 1.80902 1.31433i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 31.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
9.c even 3 1 inner
25.d even 5 1 inner
225.q even 15 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 450.2.q.a 8
9.c even 3 1 inner 450.2.q.a 8
25.d even 5 1 inner 450.2.q.a 8
225.q even 15 1 inner 450.2.q.a 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
450.2.q.a 8 1.a even 1 1 trivial
450.2.q.a 8 9.c even 3 1 inner
450.2.q.a 8 25.d even 5 1 inner
450.2.q.a 8 225.q even 15 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{4} + 4T_{7}^{3} + 17T_{7}^{2} - 4T_{7} + 1 \) acting on \(S_{2}^{\mathrm{new}}(450, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} - T^{7} + T^{5} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{8} - 3 T^{6} + \cdots + 81 \) Copy content Toggle raw display
$5$ \( T^{8} + 5 T^{7} + \cdots + 625 \) Copy content Toggle raw display
$7$ \( (T^{4} + 4 T^{3} + 17 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$11$ \( T^{8} - 5 T^{7} + \cdots + 625 \) Copy content Toggle raw display
$13$ \( T^{8} - 6 T^{7} + \cdots + 14641 \) Copy content Toggle raw display
$17$ \( (T^{4} - T^{3} + 31 T^{2} + \cdots + 121)^{2} \) Copy content Toggle raw display
$19$ \( (T^{4} - 7 T^{3} + 19 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} - 5 T^{7} + \cdots + 625 \) Copy content Toggle raw display
$29$ \( T^{8} + 6 T^{7} + \cdots + 14641 \) Copy content Toggle raw display
$31$ \( T^{8} - 15 T^{7} + \cdots + 4100625 \) Copy content Toggle raw display
$37$ \( (T^{4} + 12 T^{3} + \cdots + 1936)^{2} \) Copy content Toggle raw display
$41$ \( T^{8} - 4 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$43$ \( (T^{4} - 2 T^{3} + \cdots + 361)^{2} \) Copy content Toggle raw display
$47$ \( T^{8} + 14 T^{7} + \cdots + 707281 \) Copy content Toggle raw display
$53$ \( (T^{4} - 7 T^{3} + 124 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$59$ \( T^{8} + 14 T^{7} + \cdots + 256 \) Copy content Toggle raw display
$61$ \( T^{8} + \cdots + 1026625681 \) Copy content Toggle raw display
$67$ \( T^{8} - 7 T^{7} + \cdots + 14641 \) Copy content Toggle raw display
$71$ \( (T^{4} + 6 T^{3} + \cdots + 13456)^{2} \) Copy content Toggle raw display
$73$ \( (T^{4} - 6 T^{3} + \cdots + 1296)^{2} \) Copy content Toggle raw display
$79$ \( T^{8} + 18 T^{7} + \cdots + 43046721 \) Copy content Toggle raw display
$83$ \( T^{8} - 4 T^{7} + \cdots + 2825761 \) Copy content Toggle raw display
$89$ \( (T^{4} + 15 T^{3} + \cdots + 2025)^{2} \) Copy content Toggle raw display
$97$ \( T^{8} + 8 T^{7} + \cdots + 65536 \) Copy content Toggle raw display
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