Properties

Label 2-686-49.9-c1-0-17
Degree $2$
Conductor $686$
Sign $0.470 + 0.882i$
Analytic cond. $5.47773$
Root an. cond. $2.34045$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (0.733 + 0.680i)2-s + (−2.17 − 0.328i)3-s + (0.0747 + 0.997i)4-s + (−0.172 − 0.440i)5-s + (−1.37 − 1.72i)6-s + (−0.623 + 0.781i)8-s + (1.77 + 0.546i)9-s + (0.172 − 0.440i)10-s + (0.452 − 0.139i)11-s + (0.164 − 2.19i)12-s + (0.0313 − 0.137i)13-s + (0.231 + 1.01i)15-s + (−0.988 + 0.149i)16-s + (−5.59 − 3.81i)17-s + (0.926 + 1.60i)18-s + (2.32 − 4.02i)19-s + ⋯
L(s)  = 1  + (0.518 + 0.480i)2-s + (−1.25 − 0.189i)3-s + (0.0373 + 0.498i)4-s + (−0.0772 − 0.196i)5-s + (−0.560 − 0.703i)6-s + (−0.220 + 0.276i)8-s + (0.590 + 0.182i)9-s + (0.0546 − 0.139i)10-s + (0.136 − 0.0420i)11-s + (0.0475 − 0.634i)12-s + (0.00869 − 0.0380i)13-s + (0.0598 + 0.262i)15-s + (−0.247 + 0.0372i)16-s + (−1.35 − 0.924i)17-s + (0.218 + 0.378i)18-s + (0.533 − 0.923i)19-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 686 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.470 + 0.882i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 686 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.470 + 0.882i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(686\)    =    \(2 \cdot 7^{3}\)
Sign: $0.470 + 0.882i$
Analytic conductor: \(5.47773\)
Root analytic conductor: \(2.34045\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{686} (177, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 686,\ (\ :1/2),\ 0.470 + 0.882i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.764654 - 0.458826i\)
\(L(\frac12)\) \(\approx\) \(0.764654 - 0.458826i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-0.733 - 0.680i)T \)
7 \( 1 \)
good3 \( 1 + (2.17 + 0.328i)T + (2.86 + 0.884i)T^{2} \)
5 \( 1 + (0.172 + 0.440i)T + (-3.66 + 3.40i)T^{2} \)
11 \( 1 + (-0.452 + 0.139i)T + (9.08 - 6.19i)T^{2} \)
13 \( 1 + (-0.0313 + 0.137i)T + (-11.7 - 5.64i)T^{2} \)
17 \( 1 + (5.59 + 3.81i)T + (6.21 + 15.8i)T^{2} \)
19 \( 1 + (-2.32 + 4.02i)T + (-9.5 - 16.4i)T^{2} \)
23 \( 1 + (-3.42 + 2.33i)T + (8.40 - 21.4i)T^{2} \)
29 \( 1 + (4.42 - 2.12i)T + (18.0 - 22.6i)T^{2} \)
31 \( 1 + (0.190 + 0.330i)T + (-15.5 + 26.8i)T^{2} \)
37 \( 1 + (-0.807 + 10.7i)T + (-36.5 - 5.51i)T^{2} \)
41 \( 1 + (-6.40 + 8.03i)T + (-9.12 - 39.9i)T^{2} \)
43 \( 1 + (4.50 + 5.64i)T + (-9.56 + 41.9i)T^{2} \)
47 \( 1 + (-2.05 - 1.90i)T + (3.51 + 46.8i)T^{2} \)
53 \( 1 + (0.937 + 12.5i)T + (-52.4 + 7.89i)T^{2} \)
59 \( 1 + (4.59 - 11.7i)T + (-43.2 - 40.1i)T^{2} \)
61 \( 1 + (0.290 - 3.87i)T + (-60.3 - 9.09i)T^{2} \)
67 \( 1 + (-4.31 - 7.47i)T + (-33.5 + 58.0i)T^{2} \)
71 \( 1 + (2.99 + 1.44i)T + (44.2 + 55.5i)T^{2} \)
73 \( 1 + (-4.65 + 4.32i)T + (5.45 - 72.7i)T^{2} \)
79 \( 1 + (4.99 - 8.65i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 + (-2.43 - 10.6i)T + (-74.7 + 36.0i)T^{2} \)
89 \( 1 + (2.90 + 0.896i)T + (73.5 + 50.1i)T^{2} \)
97 \( 1 + 3.36T + 97T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−10.81449575556280870846557177918, −9.297850331275556267588843033257, −8.638920660177023414623363156464, −7.10924493483732373922182549396, −6.88648015483758893861523941817, −5.69740607089766168531395216821, −5.06949045577237709084445983636, −4.16867305928970993852625522015, −2.59333601922153807197097906793, −0.48773241578035376109140736764, 1.45035105445617340668893827675, 3.10404792841011138462292981505, 4.31740468481342146021239711306, 5.11036505518120137583282045399, 6.08432037003916981023145568452, 6.65763791724359578466553441395, 7.939169306592309078040956930634, 9.193972898758475767145431169167, 10.06949163724963703037735958253, 11.05858663064962177982492291043

Graph of the $Z$-function along the critical line