Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [28,5,Mod(5,28)] 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("28.5"); S:= CuspForms(chi, 5); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(28, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([0, 5])) N = Newforms(chi, 5, names="a")
 
Level: \( N \) \(=\) \( 28 = 2^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 28.h (of order \(6\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(0)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(2.89435896635\)
Analytic rank: \(0\)
Dimension: \(6\)
Relative dimension: \(3\) over \(\Q(\zeta_{6})\)
Coefficient field: 6.0.11337408.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} + 18x^{4} + 81x^{2} + 12 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{2}\cdot 3^{3}\cdot 7^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

Embedding invariants

Embedding label 5.1
Root \(-3.17656i\) of defining polynomial
Character \(\chi\) \(=\) 28.5
Dual form 28.5.h.a.17.1

$q$-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)
 
\(f(q)\) \(=\) \(q+(-7.81152 + 4.50998i) q^{3} +(-26.9260 - 15.5457i) q^{5} +(-48.6720 + 5.65972i) q^{7} +(0.179888 - 0.311574i) q^{9} +(72.8605 + 126.198i) q^{11} -209.930i q^{13} +280.444 q^{15} +(-162.074 + 93.5735i) q^{17} +(153.531 + 88.6415i) q^{19} +(354.677 - 263.721i) q^{21} +(-166.842 + 288.979i) q^{23} +(170.838 + 295.901i) q^{25} -727.372i q^{27} -1387.57 q^{29} +(-1345.74 + 776.966i) q^{31} +(-1138.30 - 657.199i) q^{33} +(1398.53 + 604.248i) q^{35} +(1138.99 - 1972.78i) q^{37} +(946.779 + 1639.87i) q^{39} +781.977i q^{41} +837.131 q^{43} +(-9.68729 + 5.59296i) q^{45} +(-1296.36 - 748.454i) q^{47} +(2336.94 - 550.940i) q^{49} +(844.030 - 1461.90i) q^{51} +(2233.55 + 3868.63i) q^{53} -4530.67i q^{55} -1599.09 q^{57} +(-3815.50 + 2202.88i) q^{59} +(2257.75 + 1303.51i) q^{61} +(-6.99207 + 16.1831i) q^{63} +(-3263.51 + 5652.56i) q^{65} +(-2887.15 - 5000.70i) q^{67} -3009.82i q^{69} +1149.20 q^{71} +(-3194.47 + 1844.33i) q^{73} +(-2669.01 - 1540.96i) q^{75} +(-4260.52 - 5729.95i) q^{77} +(-1349.16 + 2336.81i) q^{79} +(3295.01 + 5707.12i) q^{81} +2689.70i q^{83} +5818.67 q^{85} +(10839.1 - 6257.93i) q^{87} +(5037.61 + 2908.47i) q^{89} +(1188.14 + 10217.7i) q^{91} +(7008.21 - 12138.6i) q^{93} +(-2755.99 - 4773.51i) q^{95} +7890.42i q^{97} +52.4268 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q + 9 q^{3} - 27 q^{5} + 66 q^{7} + 90 q^{9} + 135 q^{11} - 486 q^{15} - 1107 q^{17} - 747 q^{19} + 2169 q^{21} + 243 q^{23} + 1878 q^{25} - 540 q^{29} - 5355 q^{31} - 1863 q^{33} + 6021 q^{35} + 2355 q^{37}+ \cdots + 8100 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/28\mathbb{Z}\right)^\times\).

\(n\) \(15\) \(17\)
\(\chi(n)\) \(1\) \(e\left(\frac{5}{6}\right)\)

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:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 0 0
\(3\) −7.81152 + 4.50998i −0.867947 + 0.501109i −0.866665 − 0.498890i \(-0.833741\pi\)
−0.00128125 + 0.999999i \(0.500408\pi\)
\(4\) 0 0
\(5\) −26.9260 − 15.5457i −1.07704 − 0.621829i −0.146943 − 0.989145i \(-0.546943\pi\)
−0.930096 + 0.367317i \(0.880277\pi\)
\(6\) 0 0
\(7\) −48.6720 + 5.65972i −0.993307 + 0.115505i
\(8\) 0 0
\(9\) 0.179888 − 0.311574i 0.00222083 − 0.00384660i
\(10\) 0 0
\(11\) 72.8605 + 126.198i 0.602153 + 1.04296i 0.992494 + 0.122290i \(0.0390236\pi\)
−0.390341 + 0.920670i \(0.627643\pi\)
\(12\) 0 0
\(13\) − 209.930i − 1.24219i −0.783736 − 0.621094i \(-0.786689\pi\)
0.783736 − 0.621094i \(-0.213311\pi\)
\(14\) 0 0
\(15\) 280.444 1.24642
\(16\) 0 0
\(17\) −162.074 + 93.5735i −0.560810 + 0.323784i −0.753470 − 0.657482i \(-0.771622\pi\)
0.192661 + 0.981265i \(0.438288\pi\)
\(18\) 0 0
\(19\) 153.531 + 88.6415i 0.425295 + 0.245544i 0.697340 − 0.716740i \(-0.254367\pi\)
−0.272045 + 0.962284i \(0.587700\pi\)
\(20\) 0 0
\(21\) 354.677 − 263.721i 0.804257 − 0.598007i
\(22\) 0 0
\(23\) −166.842 + 288.979i −0.315392 + 0.546275i −0.979521 − 0.201343i \(-0.935469\pi\)
0.664129 + 0.747618i \(0.268803\pi\)
\(24\) 0 0
\(25\) 170.838 + 295.901i 0.273341 + 0.473441i
\(26\) 0 0
\(27\) − 727.372i − 0.997767i
\(28\) 0 0
\(29\) −1387.57 −1.64991 −0.824954 − 0.565199i \(-0.808799\pi\)
−0.824954 + 0.565199i \(0.808799\pi\)
\(30\) 0 0
\(31\) −1345.74 + 776.966i −1.40036 + 0.808497i −0.994429 − 0.105407i \(-0.966385\pi\)
−0.405930 + 0.913904i \(0.633052\pi\)
\(32\) 0 0
\(33\) −1138.30 − 657.199i −1.04527 − 0.603489i
\(34\) 0 0
\(35\) 1398.53 + 604.248i 1.14165 + 0.493264i
\(36\) 0 0
\(37\) 1138.99 − 1972.78i 0.831985 − 1.44104i −0.0644762 − 0.997919i \(-0.520538\pi\)
0.896462 − 0.443122i \(-0.146129\pi\)
\(38\) 0 0
\(39\) 946.779 + 1639.87i 0.622471 + 1.07815i
\(40\) 0 0
\(41\) 781.977i 0.465185i 0.972574 + 0.232593i \(0.0747209\pi\)
−0.972574 + 0.232593i \(0.925279\pi\)
\(42\) 0 0
\(43\) 837.131 0.452748 0.226374 − 0.974040i \(-0.427313\pi\)
0.226374 + 0.974040i \(0.427313\pi\)
\(44\) 0 0
\(45\) −9.68729 + 5.59296i −0.00478385 + 0.00276196i
\(46\) 0 0
\(47\) −1296.36 − 748.454i −0.586854 − 0.338820i 0.176999 − 0.984211i \(-0.443361\pi\)
−0.763853 + 0.645391i \(0.776695\pi\)
\(48\) 0 0
\(49\) 2336.94 − 550.940i 0.973317 − 0.229463i
\(50\) 0 0
\(51\) 844.030 − 1461.90i 0.324502 − 0.562054i
\(52\) 0 0
\(53\) 2233.55 + 3868.63i 0.795141 + 1.37723i 0.922749 + 0.385400i \(0.125937\pi\)
−0.127608 + 0.991825i \(0.540730\pi\)
\(54\) 0 0
\(55\) − 4530.67i − 1.49774i
\(56\) 0 0
\(57\) −1599.09 −0.492178
\(58\) 0 0
\(59\) −3815.50 + 2202.88i −1.09609 + 0.632829i −0.935192 − 0.354142i \(-0.884773\pi\)
−0.160900 + 0.986971i \(0.551440\pi\)
\(60\) 0 0
\(61\) 2257.75 + 1303.51i 0.606758 + 0.350312i 0.771695 − 0.635992i \(-0.219409\pi\)
−0.164938 + 0.986304i \(0.552742\pi\)
\(62\) 0 0
\(63\) −6.99207 + 16.1831i −0.00176167 + 0.00407737i
\(64\) 0 0
\(65\) −3263.51 + 5652.56i −0.772427 + 1.33788i
\(66\) 0 0
\(67\) −2887.15 − 5000.70i −0.643162 − 1.11399i −0.984723 − 0.174129i \(-0.944289\pi\)
0.341561 − 0.939860i \(-0.389044\pi\)
\(68\) 0 0
\(69\) − 3009.82i − 0.632183i
\(70\) 0 0
\(71\) 1149.20 0.227971 0.113986 − 0.993482i \(-0.463638\pi\)
0.113986 + 0.993482i \(0.463638\pi\)
\(72\) 0 0
\(73\) −3194.47 + 1844.33i −0.599450 + 0.346093i −0.768825 − 0.639459i \(-0.779158\pi\)
0.169375 + 0.985552i \(0.445825\pi\)
\(74\) 0 0
\(75\) −2669.01 − 1540.96i −0.474491 − 0.273948i
\(76\) 0 0
\(77\) −4260.52 − 5729.95i −0.718589 − 0.966428i
\(78\) 0 0
\(79\) −1349.16 + 2336.81i −0.216177 + 0.374429i −0.953636 − 0.300963i \(-0.902692\pi\)
0.737459 + 0.675392i \(0.236025\pi\)
\(80\) 0 0
\(81\) 3295.01 + 5707.12i 0.502211 + 0.869855i
\(82\) 0 0
\(83\) 2689.70i 0.390433i 0.980760 + 0.195217i \(0.0625410\pi\)
−0.980760 + 0.195217i \(0.937459\pi\)
\(84\) 0 0
\(85\) 5818.67 0.805352
\(86\) 0 0
\(87\) 10839.1 − 6257.93i 1.43203 − 0.826784i
\(88\) 0 0
\(89\) 5037.61 + 2908.47i 0.635982 + 0.367184i 0.783065 − 0.621940i \(-0.213655\pi\)
−0.147083 + 0.989124i \(0.546988\pi\)
\(90\) 0 0
\(91\) 1188.14 + 10217.7i 0.143478 + 1.23387i
\(92\) 0 0
\(93\) 7008.21 − 12138.6i 0.810291 − 1.40347i
\(94\) 0 0
\(95\) −2755.99 − 4773.51i −0.305373 − 0.528921i
\(96\) 0 0
\(97\) 7890.42i 0.838604i 0.907847 + 0.419302i \(0.137725\pi\)
−0.907847 + 0.419302i \(0.862275\pi\)
\(98\) 0 0
\(99\) 52.4268 0.00534913
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 28.5.h.a.5.1 ✓ 6
3.2 odd 2 252.5.z.f.145.3 6
4.3 odd 2 112.5.s.c.33.3 6
5.2 odd 4 700.5.o.a.649.5 12
5.3 odd 4 700.5.o.a.649.2 12
5.4 even 2 700.5.s.a.201.3 6
7.2 even 3 196.5.b.a.97.2 6
7.3 odd 6 inner 28.5.h.a.17.1 yes 6
7.4 even 3 196.5.h.c.129.3 6
7.5 odd 6 196.5.b.a.97.5 6
7.6 odd 2 196.5.h.c.117.3 6
21.17 even 6 252.5.z.f.73.3 6
28.3 even 6 112.5.s.c.17.3 6
28.19 even 6 784.5.c.e.97.2 6
28.23 odd 6 784.5.c.e.97.5 6
35.3 even 12 700.5.o.a.549.5 12
35.17 even 12 700.5.o.a.549.2 12
35.24 odd 6 700.5.s.a.101.3 6
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
28.5.h.a.5.1 ✓ 6 1.1 even 1 trivial
28.5.h.a.17.1 yes 6 7.3 odd 6 inner
112.5.s.c.17.3 6 28.3 even 6
112.5.s.c.33.3 6 4.3 odd 2
196.5.b.a.97.2 6 7.2 even 3
196.5.b.a.97.5 6 7.5 odd 6
196.5.h.c.117.3 6 7.6 odd 2
196.5.h.c.129.3 6 7.4 even 3
252.5.z.f.73.3 6 21.17 even 6
252.5.z.f.145.3 6 3.2 odd 2
700.5.o.a.549.2 12 35.17 even 12
700.5.o.a.549.5 12 35.3 even 12
700.5.o.a.649.2 12 5.3 odd 4
700.5.o.a.649.5 12 5.2 odd 4
700.5.s.a.101.3 6 35.24 odd 6
700.5.s.a.201.3 6 5.4 even 2
784.5.c.e.97.2 6 28.19 even 6
784.5.c.e.97.5 6 28.23 odd 6