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Properties

Label 2-840-105.104-c1-0-20
Degree $2$
Conductor $840$
Sign $0.988 + 0.147i$
Analytic cond. $6.70743$
Root an. cond. $2.58987$
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  + (−1.37 − 1.04i)3-s + (1.84 − 1.26i)5-s + (2.63 + 0.269i)7-s + (0.801 + 2.89i)9-s + 3.01i·11-s + 4.39·13-s + (−3.86 − 0.180i)15-s + 2.71i·17-s + 8.23i·19-s + (−3.34 − 3.13i)21-s − 3.81·23-s + (1.77 − 4.67i)25-s + (1.92 − 4.82i)27-s − 1.17i·29-s − 1.73i·31-s + ⋯
L(s)  = 1  + (−0.796 − 0.605i)3-s + (0.823 − 0.567i)5-s + (0.994 + 0.101i)7-s + (0.267 + 0.963i)9-s + 0.908i·11-s + 1.21·13-s + (−0.998 − 0.0465i)15-s + 0.657i·17-s + 1.88i·19-s + (−0.730 − 0.683i)21-s − 0.796·23-s + (0.355 − 0.934i)25-s + (0.370 − 0.928i)27-s − 0.217i·29-s − 0.311i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.988 + 0.147i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.988 + 0.147i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(840\)    =    \(2^{3} \cdot 3 \cdot 5 \cdot 7\)
Sign: $0.988 + 0.147i$
Analytic conductor: \(6.70743\)
Root analytic conductor: \(2.58987\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{840} (209, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 840,\ (\ :1/2),\ 0.988 + 0.147i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.60405 - 0.119335i\)
\(L(\frac12)\) \(\approx\) \(1.60405 - 0.119335i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + (1.37 + 1.04i)T \)
5 \( 1 + (-1.84 + 1.26i)T \)
7 \( 1 + (-2.63 - 0.269i)T \)
good11 \( 1 - 3.01iT - 11T^{2} \)
13 \( 1 - 4.39T + 13T^{2} \)
17 \( 1 - 2.71iT - 17T^{2} \)
19 \( 1 - 8.23iT - 19T^{2} \)
23 \( 1 + 3.81T + 23T^{2} \)
29 \( 1 + 1.17iT - 29T^{2} \)
31 \( 1 + 1.73iT - 31T^{2} \)
37 \( 1 - 4.60iT - 37T^{2} \)
41 \( 1 - 10.6T + 41T^{2} \)
43 \( 1 - 9.18iT - 43T^{2} \)
47 \( 1 + 12.0iT - 47T^{2} \)
53 \( 1 + 7.14T + 53T^{2} \)
59 \( 1 + 9.11T + 59T^{2} \)
61 \( 1 + 13.5iT - 61T^{2} \)
67 \( 1 - 0.494iT - 67T^{2} \)
71 \( 1 + 5.15iT - 71T^{2} \)
73 \( 1 - 4.76T + 73T^{2} \)
79 \( 1 - 12.1T + 79T^{2} \)
83 \( 1 + 8.16iT - 83T^{2} \)
89 \( 1 - 2.26T + 89T^{2} \)
97 \( 1 - 2.92T + 97T^{2} \)
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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

−10.31963893662486122965858199327, −9.439703779958683951274026317066, −8.117503488548110026148465728405, −7.927405174439317531560060322014, −6.37843904973845356856109836049, −5.93024033606109886407191303132, −5.00002415688926045760669542794, −4.07403975175403529306029857837, −1.95834392838596182335081563989, −1.40843318152234158714390859554, 1.05081114701054797334599831026, 2.70014062898935119003880464941, 3.96112611112404232851578566006, 5.02220679690607351791989538080, 5.80636791438051368113662384606, 6.51886315215911106931402105498, 7.54651808584900235911626286803, 8.859647469167176167519247740265, 9.315046852310517249044894078500, 10.54221137263759219229033033724

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