Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [405,2,Mod(136,405)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("405.136"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(405, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([4, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 405 = 3^{4} \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 405.e (of order \(3\), degree \(2\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,-2,0,-2,-1,0,0] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(3.23394128186\)
Analytic rank: \(1\)
Dimension: \(2\)
Coefficient field: \(\Q(\zeta_{6})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

Embedding invariants

Embedding label 136.1
Root \(0.500000 + 0.866025i\) of defining polynomial
Character \(\chi\) \(=\) 405.136
Dual form 405.2.e.a.271.1

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 
\(f(q)\) \(=\) \(q+(-1.00000 + 1.73205i) q^{2} +(-1.00000 - 1.73205i) q^{4} +(-0.500000 - 0.866025i) q^{5} +2.00000 q^{10} +(-2.50000 + 4.33013i) q^{11} +(-2.00000 - 3.46410i) q^{13} +(2.00000 - 3.46410i) q^{16} -4.00000 q^{17} -5.00000 q^{19} +(-1.00000 + 1.73205i) q^{20} +(-5.00000 - 8.66025i) q^{22} +(-3.00000 - 5.19615i) q^{23} +(-0.500000 + 0.866025i) q^{25} +8.00000 q^{26} +(2.50000 - 4.33013i) q^{29} +(4.50000 + 7.79423i) q^{31} +(4.00000 + 6.92820i) q^{32} +(4.00000 - 6.92820i) q^{34} -10.0000 q^{37} +(5.00000 - 8.66025i) q^{38} +(-3.50000 - 6.06218i) q^{41} +(1.00000 - 1.73205i) q^{43} +10.0000 q^{44} +12.0000 q^{46} +(-1.00000 + 1.73205i) q^{47} +(3.50000 + 6.06218i) q^{49} +(-1.00000 - 1.73205i) q^{50} +(-4.00000 + 6.92820i) q^{52} +8.00000 q^{53} +5.00000 q^{55} +(5.00000 + 8.66025i) q^{58} +(0.500000 + 0.866025i) q^{59} +(1.00000 - 1.73205i) q^{61} -18.0000 q^{62} -8.00000 q^{64} +(-2.00000 + 3.46410i) q^{65} +(-3.00000 - 5.19615i) q^{67} +(4.00000 + 6.92820i) q^{68} +1.00000 q^{71} -8.00000 q^{73} +(10.0000 - 17.3205i) q^{74} +(5.00000 + 8.66025i) q^{76} +(-6.00000 + 10.3923i) q^{79} -4.00000 q^{80} +14.0000 q^{82} +(-3.00000 + 5.19615i) q^{83} +(2.00000 + 3.46410i) q^{85} +(2.00000 + 3.46410i) q^{86} -9.00000 q^{89} +(-6.00000 + 10.3923i) q^{92} +(-2.00000 - 3.46410i) q^{94} +(2.50000 + 4.33013i) q^{95} +(-7.00000 + 12.1244i) q^{97} -14.0000 q^{98} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{2} - 2 q^{4} - q^{5} + 4 q^{10} - 5 q^{11} - 4 q^{13} + 4 q^{16} - 8 q^{17} - 10 q^{19} - 2 q^{20} - 10 q^{22} - 6 q^{23} - q^{25} + 16 q^{26} + 5 q^{29} + 9 q^{31} + 8 q^{32} + 8 q^{34} - 20 q^{37}+ \cdots - 28 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/405\mathbb{Z}\right)^\times\).

\(n\) \(82\) \(326\)
\(\chi(n)\) \(1\) \(e\left(\frac{2}{3}\right)\)

Coefficient data

For each \(n\) we display the coefficients of the \(q\)-expansion \(a_n\), the Satake parameters \(\alpha_p\), and the Satake angles \(\theta_p = \textrm{Arg}(\alpha_p)\). You can download additional coefficients here.



Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)
Significant digits:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) −1.00000 + 1.73205i −0.707107 + 1.22474i 0.258819 + 0.965926i \(0.416667\pi\)
−0.965926 + 0.258819i \(0.916667\pi\)
\(3\) 0 0
\(4\) −1.00000 1.73205i −0.500000 0.866025i
\(5\) −0.500000 0.866025i −0.223607 0.387298i
\(6\) 0 0
\(7\) 0 0 −0.866025 0.500000i \(-0.833333\pi\)
0.866025 + 0.500000i \(0.166667\pi\)
\(8\) 0 0
\(9\) 0 0
\(10\) 2.00000 0.632456
\(11\) −2.50000 + 4.33013i −0.753778 + 1.30558i 0.192201 + 0.981356i \(0.438437\pi\)
−0.945979 + 0.324227i \(0.894896\pi\)
\(12\) 0 0
\(13\) −2.00000 3.46410i −0.554700 0.960769i −0.997927 0.0643593i \(-0.979500\pi\)
0.443227 0.896410i \(-0.353834\pi\)
\(14\) 0 0
\(15\) 0 0
\(16\) 2.00000 3.46410i 0.500000 0.866025i
\(17\) −4.00000 −0.970143 −0.485071 0.874475i \(-0.661206\pi\)
−0.485071 + 0.874475i \(0.661206\pi\)
\(18\) 0 0
\(19\) −5.00000 −1.14708 −0.573539 0.819178i \(-0.694430\pi\)
−0.573539 + 0.819178i \(0.694430\pi\)
\(20\) −1.00000 + 1.73205i −0.223607 + 0.387298i
\(21\) 0 0
\(22\) −5.00000 8.66025i −1.06600 1.84637i
\(23\) −3.00000 5.19615i −0.625543 1.08347i −0.988436 0.151642i \(-0.951544\pi\)
0.362892 0.931831i \(-0.381789\pi\)
\(24\) 0 0
\(25\) −0.500000 + 0.866025i −0.100000 + 0.173205i
\(26\) 8.00000 1.56893
\(27\) 0 0
\(28\) 0 0
\(29\) 2.50000 4.33013i 0.464238 0.804084i −0.534928 0.844897i \(-0.679661\pi\)
0.999167 + 0.0408130i \(0.0129948\pi\)
\(30\) 0 0
\(31\) 4.50000 + 7.79423i 0.808224 + 1.39988i 0.914093 + 0.405505i \(0.132904\pi\)
−0.105869 + 0.994380i \(0.533762\pi\)
\(32\) 4.00000 + 6.92820i 0.707107 + 1.22474i
\(33\) 0 0
\(34\) 4.00000 6.92820i 0.685994 1.18818i
\(35\) 0 0
\(36\) 0 0
\(37\) −10.0000 −1.64399 −0.821995 0.569495i \(-0.807139\pi\)
−0.821995 + 0.569495i \(0.807139\pi\)
\(38\) 5.00000 8.66025i 0.811107 1.40488i
\(39\) 0 0
\(40\) 0 0
\(41\) −3.50000 6.06218i −0.546608 0.946753i −0.998504 0.0546823i \(-0.982585\pi\)
0.451896 0.892071i \(-0.350748\pi\)
\(42\) 0 0
\(43\) 1.00000 1.73205i 0.152499 0.264135i −0.779647 0.626219i \(-0.784601\pi\)
0.932145 + 0.362084i \(0.117935\pi\)
\(44\) 10.0000 1.50756
\(45\) 0 0
\(46\) 12.0000 1.76930
\(47\) −1.00000 + 1.73205i −0.145865 + 0.252646i −0.929695 0.368329i \(-0.879930\pi\)
0.783830 + 0.620975i \(0.213263\pi\)
\(48\) 0 0
\(49\) 3.50000 + 6.06218i 0.500000 + 0.866025i
\(50\) −1.00000 1.73205i −0.141421 0.244949i
\(51\) 0 0
\(52\) −4.00000 + 6.92820i −0.554700 + 0.960769i
\(53\) 8.00000 1.09888 0.549442 0.835532i \(-0.314840\pi\)
0.549442 + 0.835532i \(0.314840\pi\)
\(54\) 0 0
\(55\) 5.00000 0.674200
\(56\) 0 0
\(57\) 0 0
\(58\) 5.00000 + 8.66025i 0.656532 + 1.13715i
\(59\) 0.500000 + 0.866025i 0.0650945 + 0.112747i 0.896736 0.442566i \(-0.145932\pi\)
−0.831641 + 0.555313i \(0.812598\pi\)
\(60\) 0 0
\(61\) 1.00000 1.73205i 0.128037 0.221766i −0.794879 0.606768i \(-0.792466\pi\)
0.922916 + 0.385002i \(0.125799\pi\)
\(62\) −18.0000 −2.28600
\(63\) 0 0
\(64\) −8.00000 −1.00000
\(65\) −2.00000 + 3.46410i −0.248069 + 0.429669i
\(66\) 0 0
\(67\) −3.00000 5.19615i −0.366508 0.634811i 0.622509 0.782613i \(-0.286114\pi\)
−0.989017 + 0.147802i \(0.952780\pi\)
\(68\) 4.00000 + 6.92820i 0.485071 + 0.840168i
\(69\) 0 0
\(70\) 0 0
\(71\) 1.00000 0.118678 0.0593391 0.998238i \(-0.481101\pi\)
0.0593391 + 0.998238i \(0.481101\pi\)
\(72\) 0 0
\(73\) −8.00000 −0.936329 −0.468165 0.883641i \(-0.655085\pi\)
−0.468165 + 0.883641i \(0.655085\pi\)
\(74\) 10.0000 17.3205i 1.16248 2.01347i
\(75\) 0 0
\(76\) 5.00000 + 8.66025i 0.573539 + 0.993399i
\(77\) 0 0
\(78\) 0 0
\(79\) −6.00000 + 10.3923i −0.675053 + 1.16923i 0.301401 + 0.953498i \(0.402546\pi\)
−0.976453 + 0.215728i \(0.930788\pi\)
\(80\) −4.00000 −0.447214
\(81\) 0 0
\(82\) 14.0000 1.54604
\(83\) −3.00000 + 5.19615i −0.329293 + 0.570352i −0.982372 0.186938i \(-0.940144\pi\)
0.653079 + 0.757290i \(0.273477\pi\)
\(84\) 0 0
\(85\) 2.00000 + 3.46410i 0.216930 + 0.375735i
\(86\) 2.00000 + 3.46410i 0.215666 + 0.373544i
\(87\) 0 0
\(88\) 0 0
\(89\) −9.00000 −0.953998 −0.476999 0.878904i \(-0.658275\pi\)
−0.476999 + 0.878904i \(0.658275\pi\)
\(90\) 0 0
\(91\) 0 0
\(92\) −6.00000 + 10.3923i −0.625543 + 1.08347i
\(93\) 0 0
\(94\) −2.00000 3.46410i −0.206284 0.357295i
\(95\) 2.50000 + 4.33013i 0.256495 + 0.444262i
\(96\) 0 0
\(97\) −7.00000 + 12.1244i −0.710742 + 1.23104i 0.253837 + 0.967247i \(0.418307\pi\)
−0.964579 + 0.263795i \(0.915026\pi\)
\(98\) −14.0000 −1.41421
\(99\) 0 0
Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)

Twists

       By twisting character
Char Parity Ord Type Twist Min Dim
1.1 even 1 trivial 405.2.e.a.136.1 2
3.2 odd 2 405.2.e.g.136.1 2
9.2 odd 6 405.2.a.a.1.1 1
9.4 even 3 inner 405.2.e.a.271.1 2
9.5 odd 6 405.2.e.g.271.1 2
9.7 even 3 405.2.a.f.1.1 yes 1
36.7 odd 6 6480.2.a.r.1.1 1
36.11 even 6 6480.2.a.f.1.1 1
45.2 even 12 2025.2.b.a.649.1 2
45.7 odd 12 2025.2.b.b.649.2 2
45.29 odd 6 2025.2.a.f.1.1 1
45.34 even 6 2025.2.a.a.1.1 1
45.38 even 12 2025.2.b.a.649.2 2
45.43 odd 12 2025.2.b.b.649.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
405.2.a.a.1.1 1 9.2 odd 6
405.2.a.f.1.1 yes 1 9.7 even 3
405.2.e.a.136.1 2 1.1 even 1 trivial
405.2.e.a.271.1 2 9.4 even 3 inner
405.2.e.g.136.1 2 3.2 odd 2
405.2.e.g.271.1 2 9.5 odd 6
2025.2.a.a.1.1 1 45.34 even 6
2025.2.a.f.1.1 1 45.29 odd 6
2025.2.b.a.649.1 2 45.2 even 12
2025.2.b.a.649.2 2 45.38 even 12
2025.2.b.b.649.1 2 45.43 odd 12
2025.2.b.b.649.2 2 45.7 odd 12
6480.2.a.f.1.1 1 36.11 even 6
6480.2.a.r.1.1 1 36.7 odd 6