Properties

Label 2-1840-5.4-c1-0-1
Degree $2$
Conductor $1840$
Sign $0.377 + 0.925i$
Analytic cond. $14.6924$
Root an. cond. $3.83307$
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  + 3.14i·3-s + (−2.07 + 0.844i)5-s + 1.20i·7-s − 6.86·9-s − 3.65·11-s − 0.859i·13-s + (−2.65 − 6.50i)15-s + 6.72i·17-s − 1.51·19-s − 3.78·21-s i·23-s + (3.57 − 3.49i)25-s − 12.1i·27-s − 0.548·29-s + 5.99·31-s + ⋯
L(s)  = 1  + 1.81i·3-s + (−0.925 + 0.377i)5-s + 0.456i·7-s − 2.28·9-s − 1.10·11-s − 0.238i·13-s + (−0.685 − 1.67i)15-s + 1.63i·17-s − 0.348·19-s − 0.826·21-s − 0.208i·23-s + (0.714 − 0.699i)25-s − 2.33i·27-s − 0.101·29-s + 1.07·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.377 + 0.925i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.377 + 0.925i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $0.377 + 0.925i$
Analytic conductor: \(14.6924\)
Root analytic conductor: \(3.83307\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1840} (369, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1840,\ (\ :1/2),\ 0.377 + 0.925i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.2561724765\)
\(L(\frac12)\) \(\approx\) \(0.2561724765\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 + (2.07 - 0.844i)T \)
23 \( 1 + iT \)
good3 \( 1 - 3.14iT - 3T^{2} \)
7 \( 1 - 1.20iT - 7T^{2} \)
11 \( 1 + 3.65T + 11T^{2} \)
13 \( 1 + 0.859iT - 13T^{2} \)
17 \( 1 - 6.72iT - 17T^{2} \)
19 \( 1 + 1.51T + 19T^{2} \)
29 \( 1 + 0.548T + 29T^{2} \)
31 \( 1 - 5.99T + 31T^{2} \)
37 \( 1 - 2.04iT - 37T^{2} \)
41 \( 1 + 7.14T + 41T^{2} \)
43 \( 1 + 10.0iT - 43T^{2} \)
47 \( 1 - 9.17iT - 47T^{2} \)
53 \( 1 + 5.37iT - 53T^{2} \)
59 \( 1 + 0.582T + 59T^{2} \)
61 \( 1 + 8.83T + 61T^{2} \)
67 \( 1 - 3.20iT - 67T^{2} \)
71 \( 1 - 12.5T + 71T^{2} \)
73 \( 1 + 8.62iT - 73T^{2} \)
79 \( 1 - 0.0700T + 79T^{2} \)
83 \( 1 - 6.74iT - 83T^{2} \)
89 \( 1 + 4.96T + 89T^{2} \)
97 \( 1 - 11.3iT - 97T^{2} \)
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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

−10.15494203314246434614183590401, −9.097050008003390296712818737602, −8.334458725442572272805972839680, −7.963909722715058736137369924350, −6.54953822712274605328706840191, −5.63750725135761927495166431320, −4.87090340295424459871274726466, −4.08789794647319528268330710447, −3.38047141408683041205908817689, −2.51134881634361145861186343381, 0.10807177673584569866187233578, 1.05653088922196797732773567156, 2.38139494358282878782700996908, 3.21644645913716264930102700117, 4.61632861642795813487565477385, 5.42116429835884118129460976360, 6.52733016548332903894545437750, 7.21246051020905375314842259488, 7.70062612557075526045967768770, 8.287048738131426165188189341238

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