Properties

Label 2-1840-92.91-c1-0-18
Degree $2$
Conductor $1840$
Sign $0.688 + 0.725i$
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  − 1.32i·3-s + i·5-s − 3.37·7-s + 1.23·9-s + 1.86·11-s − 4.25·13-s + 1.32·15-s + 3.38i·17-s + 4.52·19-s + 4.48i·21-s + (3.47 − 3.30i)23-s − 25-s − 5.62i·27-s + 3.15·29-s − 2.04i·31-s + ⋯
L(s)  = 1  − 0.767i·3-s + 0.447i·5-s − 1.27·7-s + 0.411·9-s + 0.563·11-s − 1.17·13-s + 0.343·15-s + 0.821i·17-s + 1.03·19-s + 0.978i·21-s + (0.725 − 0.688i)23-s − 0.200·25-s − 1.08i·27-s + 0.585·29-s − 0.367i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.688 + 0.725i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.688 + 0.725i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $0.688 + 0.725i$
Analytic conductor: \(14.6924\)
Root analytic conductor: \(3.83307\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1840} (1471, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1840,\ (\ :1/2),\ 0.688 + 0.725i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.503406441\)
\(L(\frac12)\) \(\approx\) \(1.503406441\)
\(L(\frac{3}{2})\) 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 \( 1 - iT \)
23 \( 1 + (-3.47 + 3.30i)T \)
good3 \( 1 + 1.32iT - 3T^{2} \)
7 \( 1 + 3.37T + 7T^{2} \)
11 \( 1 - 1.86T + 11T^{2} \)
13 \( 1 + 4.25T + 13T^{2} \)
17 \( 1 - 3.38iT - 17T^{2} \)
19 \( 1 - 4.52T + 19T^{2} \)
29 \( 1 - 3.15T + 29T^{2} \)
31 \( 1 + 2.04iT - 31T^{2} \)
37 \( 1 - 5.40iT - 37T^{2} \)
41 \( 1 - 10.1T + 41T^{2} \)
43 \( 1 - 2.07T + 43T^{2} \)
47 \( 1 + 5.06iT - 47T^{2} \)
53 \( 1 + 11.8iT - 53T^{2} \)
59 \( 1 + 11.1iT - 59T^{2} \)
61 \( 1 - 4.01iT - 61T^{2} \)
67 \( 1 - 5.68T + 67T^{2} \)
71 \( 1 - 1.69iT - 71T^{2} \)
73 \( 1 - 7.02T + 73T^{2} \)
79 \( 1 - 4.52T + 79T^{2} \)
83 \( 1 - 3.81T + 83T^{2} \)
89 \( 1 - 4.32iT - 89T^{2} \)
97 \( 1 - 8.95iT - 97T^{2} \)
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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

−9.374034487824078928130986538936, −8.190430010733782781985006355758, −7.40821954511336955740502216351, −6.67243721522829603832257079241, −6.38023852593951602279808858576, −5.16651295350270188253664172776, −4.02952270219281773979966307038, −3.08365226954376290819779885649, −2.16286175633634530613644135248, −0.74250232209659705950779014255, 0.949643055646868203443891474862, 2.66889363989104940296149110249, 3.50712978963432914048657722243, 4.44555166490867254624717196294, 5.15307441392370737110294399586, 6.07732064234619970283956098694, 7.15879830875309780675122337999, 7.52225696260751754844620985853, 9.104064405996316975975563035588, 9.346807338610881487993654974680

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