Properties

Label 2-1840-92.91-c1-0-28
Degree $2$
Conductor $1840$
Sign $0.550 - 0.834i$
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  + 3.11i·3-s i·5-s − 1.38·7-s − 6.71·9-s + 5.13·11-s + 5.71·13-s + 3.11·15-s − 4.71i·17-s + 8.44·19-s − 4.31i·21-s + (0.287 − 4.78i)23-s − 25-s − 11.5i·27-s − 4.10·29-s − 6.74i·31-s + ⋯
L(s)  = 1  + 1.79i·3-s − 0.447i·5-s − 0.523·7-s − 2.23·9-s + 1.54·11-s + 1.58·13-s + 0.804·15-s − 1.14i·17-s + 1.93·19-s − 0.941i·21-s + (0.0598 − 0.998i)23-s − 0.200·25-s − 2.22i·27-s − 0.762·29-s − 1.21i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.550 - 0.834i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.550 - 0.834i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $0.550 - 0.834i$
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: \((2,\ 1840,\ (\ :1/2),\ 0.550 - 0.834i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.910710861\)
\(L(\frac12)\) \(\approx\) \(1.910710861\)
\(L(\frac{3}{2})\) 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 \( 1 + (-0.287 + 4.78i)T \)
good3 \( 1 - 3.11iT - 3T^{2} \)
7 \( 1 + 1.38T + 7T^{2} \)
11 \( 1 - 5.13T + 11T^{2} \)
13 \( 1 - 5.71T + 13T^{2} \)
17 \( 1 + 4.71iT - 17T^{2} \)
19 \( 1 - 8.44T + 19T^{2} \)
29 \( 1 + 4.10T + 29T^{2} \)
31 \( 1 + 6.74iT - 31T^{2} \)
37 \( 1 + 1.81iT - 37T^{2} \)
41 \( 1 - 4.20T + 41T^{2} \)
43 \( 1 - 2.76T + 43T^{2} \)
47 \( 1 - 1.44iT - 47T^{2} \)
53 \( 1 + 9.60iT - 53T^{2} \)
59 \( 1 - 13.9iT - 59T^{2} \)
61 \( 1 - 5.90iT - 61T^{2} \)
67 \( 1 - 13.4T + 67T^{2} \)
71 \( 1 - 3.94iT - 71T^{2} \)
73 \( 1 + 3.12T + 73T^{2} \)
79 \( 1 - 9.45T + 79T^{2} \)
83 \( 1 + 13.4T + 83T^{2} \)
89 \( 1 - 13.4iT - 89T^{2} \)
97 \( 1 - 4.26iT - 97T^{2} \)
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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

−9.364055040017680601529749746639, −9.043696982747150487056203327278, −8.116443960904071618241196484747, −6.85051191295519304180526983008, −5.88925811462112785876490579094, −5.28911304776937106997607700498, −4.17015839001006255939740805920, −3.79834015763227467531550931564, −2.88469034148644926339123177944, −0.927847206142963891319202277853, 1.14703374595006478265068685893, 1.66049255822749892677399638866, 3.21806032235909069981864215656, 3.68097009294845128441890699673, 5.55511690513652883760946437743, 6.21959545639337976622341646043, 6.69268431791645554210655268622, 7.42710337264400166958279892442, 8.180499870418989230513514320410, 8.985221589638271113425924250921

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