Properties

Label 225.4.a.j
Level $225$
Weight $4$
Character orbit 225.a
Self dual yes
Analytic conductor $13.275$
Analytic rank $1$
Dimension $2$
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] = [225,4,Mod(1,225)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(225, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("225.1");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 225 = 3^{2} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 225.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: \(13.2754297513\)
Analytic rank: \(1\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{19}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - 19 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 75)
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 \(\beta = \sqrt{19}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta - 1) q^{2} + ( - 2 \beta + 12) q^{4} + ( - 4 \beta - 13) q^{7} + (6 \beta - 42) q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + (\beta - 1) q^{2} + ( - 2 \beta + 12) q^{4} + ( - 4 \beta - 13) q^{7} + (6 \beta - 42) q^{8} + ( - 4 \beta - 14) q^{11} + (16 \beta - 9) q^{13} + ( - 9 \beta - 63) q^{14} + ( - 32 \beta + 60) q^{16} + ( - 20 \beta - 34) q^{17} + ( - 4 \beta + 3) q^{19} + ( - 10 \beta - 62) q^{22} + ( - 12 \beta + 66) q^{23} + ( - 25 \beta + 313) q^{26} + ( - 22 \beta - 4) q^{28} + (28 \beta - 46) q^{29} + (28 \beta + 61) q^{31} + (44 \beta - 332) q^{32} + ( - 14 \beta - 346) q^{34} + ( - 24 \beta + 142) q^{37} + (7 \beta - 79) q^{38} + (52 \beta - 196) q^{41} + (4 \beta - 345) q^{43} + ( - 20 \beta - 16) q^{44} + (78 \beta - 294) q^{46} + ( - 32 \beta - 310) q^{47} + (104 \beta + 130) q^{49} + (210 \beta - 716) q^{52} + (28 \beta - 424) q^{53} + (90 \beta + 90) q^{56} + ( - 74 \beta + 578) q^{58} + ( - 64 \beta - 62) q^{59} + (56 \beta + 375) q^{61} + (33 \beta + 471) q^{62} + ( - 120 \beta + 688) q^{64} + ( - 100 \beta + 179) q^{67} + ( - 172 \beta + 352) q^{68} + ( - 20 \beta - 412) q^{71} + ( - 8 \beta + 54) q^{73} + (166 \beta - 598) q^{74} + ( - 54 \beta + 188) q^{76} + (108 \beta + 486) q^{77} + (160 \beta - 440) q^{79} + ( - 248 \beta + 1184) q^{82} + (192 \beta + 78) q^{83} + ( - 349 \beta + 421) q^{86} + (84 \beta + 132) q^{88} + (144 \beta + 432) q^{89} + ( - 172 \beta - 1099) q^{91} + ( - 276 \beta + 1248) q^{92} + ( - 278 \beta - 298) q^{94} - 521 q^{97} + (26 \beta + 1846) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{2} + 24 q^{4} - 26 q^{7} - 84 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 2 q^{2} + 24 q^{4} - 26 q^{7} - 84 q^{8} - 28 q^{11} - 18 q^{13} - 126 q^{14} + 120 q^{16} - 68 q^{17} + 6 q^{19} - 124 q^{22} + 132 q^{23} + 626 q^{26} - 8 q^{28} - 92 q^{29} + 122 q^{31} - 664 q^{32} - 692 q^{34} + 284 q^{37} - 158 q^{38} - 392 q^{41} - 690 q^{43} - 32 q^{44} - 588 q^{46} - 620 q^{47} + 260 q^{49} - 1432 q^{52} - 848 q^{53} + 180 q^{56} + 1156 q^{58} - 124 q^{59} + 750 q^{61} + 942 q^{62} + 1376 q^{64} + 358 q^{67} + 704 q^{68} - 824 q^{71} + 108 q^{73} - 1196 q^{74} + 376 q^{76} + 972 q^{77} - 880 q^{79} + 2368 q^{82} + 156 q^{83} + 842 q^{86} + 264 q^{88} + 864 q^{89} - 2198 q^{91} + 2496 q^{92} - 596 q^{94} - 1042 q^{97} + 3692 q^{98}+O(q^{100}) \) 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
−4.35890
4.35890
−5.35890 0 20.7178 0 0 4.43560 −68.1534 0 0
1.2 3.35890 0 3.28220 0 0 −30.4356 −15.8466 0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

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

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 225.4.a.j 2
3.b odd 2 1 75.4.a.e yes 2
5.b even 2 1 225.4.a.n 2
5.c odd 4 2 225.4.b.h 4
12.b even 2 1 1200.4.a.bu 2
15.d odd 2 1 75.4.a.d 2
15.e even 4 2 75.4.b.c 4
60.h even 2 1 1200.4.a.bl 2
60.l odd 4 2 1200.4.f.v 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
75.4.a.d 2 15.d odd 2 1
75.4.a.e yes 2 3.b odd 2 1
75.4.b.c 4 15.e even 4 2
225.4.a.j 2 1.a even 1 1 trivial
225.4.a.n 2 5.b even 2 1
225.4.b.h 4 5.c odd 4 2
1200.4.a.bl 2 60.h even 2 1
1200.4.a.bu 2 12.b even 2 1
1200.4.f.v 4 60.l odd 4 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(225))\):

\( T_{2}^{2} + 2T_{2} - 18 \) Copy content Toggle raw display
\( T_{7}^{2} + 26T_{7} - 135 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} + 2T - 18 \) Copy content Toggle raw display
$3$ \( T^{2} \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + 26T - 135 \) Copy content Toggle raw display
$11$ \( T^{2} + 28T - 108 \) Copy content Toggle raw display
$13$ \( T^{2} + 18T - 4783 \) Copy content Toggle raw display
$17$ \( T^{2} + 68T - 6444 \) Copy content Toggle raw display
$19$ \( T^{2} - 6T - 295 \) Copy content Toggle raw display
$23$ \( T^{2} - 132T + 1620 \) Copy content Toggle raw display
$29$ \( T^{2} + 92T - 12780 \) Copy content Toggle raw display
$31$ \( T^{2} - 122T - 11175 \) Copy content Toggle raw display
$37$ \( T^{2} - 284T + 9220 \) Copy content Toggle raw display
$41$ \( T^{2} + 392T - 12960 \) Copy content Toggle raw display
$43$ \( T^{2} + 690T + 118721 \) Copy content Toggle raw display
$47$ \( T^{2} + 620T + 76644 \) Copy content Toggle raw display
$53$ \( T^{2} + 848T + 164880 \) Copy content Toggle raw display
$59$ \( T^{2} + 124T - 73980 \) Copy content Toggle raw display
$61$ \( T^{2} - 750T + 81041 \) Copy content Toggle raw display
$67$ \( T^{2} - 358T - 157959 \) Copy content Toggle raw display
$71$ \( T^{2} + 824T + 162144 \) Copy content Toggle raw display
$73$ \( T^{2} - 108T + 1700 \) Copy content Toggle raw display
$79$ \( T^{2} + 880T - 292800 \) Copy content Toggle raw display
$83$ \( T^{2} - 156T - 694332 \) Copy content Toggle raw display
$89$ \( T^{2} - 864T - 207360 \) Copy content Toggle raw display
$97$ \( (T + 521)^{2} \) Copy content Toggle raw display
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