Properties

Label 2-20-20.19-c6-0-1
Degree $2$
Conductor $20$
Sign $-0.935 + 0.351i$
Analytic cond. $4.60108$
Root an. cond. $2.14501$
Motivic weight $6$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 8i·2-s − 64·4-s + (−117 + 44i)5-s − 512i·8-s − 729·9-s + (−352 − 936i)10-s + 1.65e3i·13-s + 4.09e3·16-s + 9.77e3i·17-s − 5.83e3i·18-s + (7.48e3 − 2.81e3i)20-s + (1.17e4 − 1.02e4i)25-s − 1.32e4·26-s − 3.18e4·29-s + 3.27e4i·32-s + ⋯
L(s)  = 1  + i·2-s − 4-s + (−0.936 + 0.351i)5-s i·8-s − 0.999·9-s + (−0.351 − 0.936i)10-s + 0.753i·13-s + 16-s + 1.98i·17-s − 0.999i·18-s + (0.936 − 0.351i)20-s + (0.752 − 0.658i)25-s − 0.753·26-s − 1.30·29-s + i·32-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 20 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.935 + 0.351i)\, \overline{\Lambda}(7-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 20 ^{s/2} \, \Gamma_{\C}(s+3) \, L(s)\cr =\mathstrut & (-0.935 + 0.351i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(20\)    =    \(2^{2} \cdot 5\)
Sign: $-0.935 + 0.351i$
Analytic conductor: \(4.60108\)
Root analytic conductor: \(2.14501\)
Motivic weight: \(6\)
Rational: no
Arithmetic: yes
Character: $\chi_{20} (19, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 20,\ (\ :3),\ -0.935 + 0.351i)\)

Particular Values

\(L(\frac{7}{2})\) \(\approx\) \(0.0958016 - 0.526908i\)
\(L(\frac12)\) \(\approx\) \(0.0958016 - 0.526908i\)
\(L(4)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - 8iT \)
5 \( 1 + (117 - 44i)T \)
good3 \( 1 + 729T^{2} \)
7 \( 1 + 1.17e5T^{2} \)
11 \( 1 - 1.77e6T^{2} \)
13 \( 1 - 1.65e3iT - 4.82e6T^{2} \)
17 \( 1 - 9.77e3iT - 2.41e7T^{2} \)
19 \( 1 - 4.70e7T^{2} \)
23 \( 1 + 1.48e8T^{2} \)
29 \( 1 + 3.18e4T + 5.94e8T^{2} \)
31 \( 1 - 8.87e8T^{2} \)
37 \( 1 + 8.47e4iT - 2.56e9T^{2} \)
41 \( 1 - 8.49e4T + 4.75e9T^{2} \)
43 \( 1 + 6.32e9T^{2} \)
47 \( 1 + 1.07e10T^{2} \)
53 \( 1 - 2.96e5iT - 2.21e10T^{2} \)
59 \( 1 - 4.21e10T^{2} \)
61 \( 1 + 2.34e5T + 5.15e10T^{2} \)
67 \( 1 + 9.04e10T^{2} \)
71 \( 1 - 1.28e11T^{2} \)
73 \( 1 - 6.50e5iT - 1.51e11T^{2} \)
79 \( 1 - 2.43e11T^{2} \)
83 \( 1 + 3.26e11T^{2} \)
89 \( 1 - 1.37e6T + 4.96e11T^{2} \)
97 \( 1 + 1.07e6iT - 8.32e11T^{2} \)
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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

−17.41723559617896442678016846889, −16.40356207080895231034368450412, −15.09591761582450050167333685427, −14.28557198809953293571831263674, −12.58984944327641074052177113615, −10.95791470246594444668912161362, −8.908335115506101954978497364641, −7.67376229366375732381050568330, −6.04677659334590292656429319984, −3.95243560446106331565838514303, 0.34536965349166450433700440595, 3.12628350211487746483549995409, 5.05351961884906686195943630547, 7.949767478799850753433924681023, 9.324844945340345586630063871331, 11.13675731107761517343218195826, 11.97476393214418913467627506173, 13.38409120183690448888657989000, 14.79672026095810305901821197090, 16.41309310941420722358276692430

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