Properties

Label 2-80-5.4-c3-0-5
Degree $2$
Conductor $80$
Sign $0.447 + 0.894i$
Analytic cond. $4.72015$
Root an. cond. $2.17259$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2i·3-s + (−5 − 10i)5-s − 26i·7-s + 23·9-s + 28·11-s − 12i·13-s + (20 − 10i)15-s − 64i·17-s − 60·19-s + 52·21-s − 58i·23-s + (−75 + 100i)25-s + 100i·27-s − 90·29-s + 128·31-s + ⋯
L(s)  = 1  + 0.384i·3-s + (−0.447 − 0.894i)5-s − 1.40i·7-s + 0.851·9-s + 0.767·11-s − 0.256i·13-s + (0.344 − 0.172i)15-s − 0.913i·17-s − 0.724·19-s + 0.540·21-s − 0.525i·23-s + (−0.599 + 0.800i)25-s + 0.712i·27-s − 0.576·29-s + 0.741·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.447 + 0.894i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (0.447 + 0.894i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(80\)    =    \(2^{4} \cdot 5\)
Sign: $0.447 + 0.894i$
Analytic conductor: \(4.72015\)
Root analytic conductor: \(2.17259\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{80} (49, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 80,\ (\ :3/2),\ 0.447 + 0.894i)\)

Particular Values

\(L(2)\) \(\approx\) \(1.18198 - 0.730504i\)
\(L(\frac12)\) \(\approx\) \(1.18198 - 0.730504i\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 + (5 + 10i)T \)
good3 \( 1 - 2iT - 27T^{2} \)
7 \( 1 + 26iT - 343T^{2} \)
11 \( 1 - 28T + 1.33e3T^{2} \)
13 \( 1 + 12iT - 2.19e3T^{2} \)
17 \( 1 + 64iT - 4.91e3T^{2} \)
19 \( 1 + 60T + 6.85e3T^{2} \)
23 \( 1 + 58iT - 1.21e4T^{2} \)
29 \( 1 + 90T + 2.43e4T^{2} \)
31 \( 1 - 128T + 2.97e4T^{2} \)
37 \( 1 - 236iT - 5.06e4T^{2} \)
41 \( 1 - 242T + 6.89e4T^{2} \)
43 \( 1 - 362iT - 7.95e4T^{2} \)
47 \( 1 + 226iT - 1.03e5T^{2} \)
53 \( 1 - 108iT - 1.48e5T^{2} \)
59 \( 1 + 20T + 2.05e5T^{2} \)
61 \( 1 - 542T + 2.26e5T^{2} \)
67 \( 1 - 434iT - 3.00e5T^{2} \)
71 \( 1 - 1.12e3T + 3.57e5T^{2} \)
73 \( 1 + 632iT - 3.89e5T^{2} \)
79 \( 1 + 720T + 4.93e5T^{2} \)
83 \( 1 + 478iT - 5.71e5T^{2} \)
89 \( 1 - 490T + 7.04e5T^{2} \)
97 \( 1 - 1.45e3iT - 9.12e5T^{2} \)
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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

−13.58321738757912432576907864682, −12.73159405039226637921851587056, −11.48707051583408906738104714388, −10.30645565126906576086136323070, −9.313257126789916623075637991462, −7.920207403941555692963667016788, −6.78583866459021974187339627800, −4.73074108874878233178853455269, −3.91516621417826761121525157483, −0.957836559168743372744539639026, 2.13212273937316211592754290477, 3.95713950107976570085892972117, 5.97011712467024798075455849164, 7.00360623711879877267743546589, 8.330440342658319081820298780338, 9.581523675084277520018602528974, 10.94615263446431194212458318343, 12.00601385006042567280648410426, 12.78109113831846301638774414288, 14.24871770551616562608790852176

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