Properties

Label 2-1840-23.22-c2-0-78
Degree $2$
Conductor $1840$
Sign $-0.691 + 0.722i$
Analytic cond. $50.1363$
Root an. cond. $7.08070$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2.60·3-s − 2.23i·5-s + 8.05i·7-s − 2.22·9-s + 5.14i·11-s − 6.63·13-s − 5.82i·15-s − 10.7i·17-s − 9.70i·19-s + 20.9i·21-s + (−16.6 − 15.9i)23-s − 5.00·25-s − 29.2·27-s − 9.52·29-s + 10.0·31-s + ⋯
L(s)  = 1  + 0.867·3-s − 0.447i·5-s + 1.15i·7-s − 0.247·9-s + 0.468i·11-s − 0.510·13-s − 0.388i·15-s − 0.635i·17-s − 0.510i·19-s + 0.998i·21-s + (−0.722 − 0.691i)23-s − 0.200·25-s − 1.08·27-s − 0.328·29-s + 0.324·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.691 + 0.722i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.691 + 0.722i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $-0.691 + 0.722i$
Analytic conductor: \(50.1363\)
Root analytic conductor: \(7.08070\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{1840} (321, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1840,\ (\ :1),\ -0.691 + 0.722i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.8135708708\)
\(L(\frac12)\) \(\approx\) \(0.8135708708\)
\(L(2)\) 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 \( 1 + 2.23iT \)
23 \( 1 + (16.6 + 15.9i)T \)
good3 \( 1 - 2.60T + 9T^{2} \)
7 \( 1 - 8.05iT - 49T^{2} \)
11 \( 1 - 5.14iT - 121T^{2} \)
13 \( 1 + 6.63T + 169T^{2} \)
17 \( 1 + 10.7iT - 289T^{2} \)
19 \( 1 + 9.70iT - 361T^{2} \)
29 \( 1 + 9.52T + 841T^{2} \)
31 \( 1 - 10.0T + 961T^{2} \)
37 \( 1 + 54.9iT - 1.36e3T^{2} \)
41 \( 1 + 47.4T + 1.68e3T^{2} \)
43 \( 1 - 29.8iT - 1.84e3T^{2} \)
47 \( 1 + 10.2T + 2.20e3T^{2} \)
53 \( 1 + 86.4iT - 2.80e3T^{2} \)
59 \( 1 - 4.11T + 3.48e3T^{2} \)
61 \( 1 + 17.2iT - 3.72e3T^{2} \)
67 \( 1 + 49.4iT - 4.48e3T^{2} \)
71 \( 1 - 42.0T + 5.04e3T^{2} \)
73 \( 1 - 52.2T + 5.32e3T^{2} \)
79 \( 1 + 110. iT - 6.24e3T^{2} \)
83 \( 1 - 138. iT - 6.88e3T^{2} \)
89 \( 1 + 163. iT - 7.92e3T^{2} \)
97 \( 1 + 90.4iT - 9.40e3T^{2} \)
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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

−8.771204974926013551277221689844, −8.194369763635550544800873094896, −7.38862967616775135076682425687, −6.36831329829278363057910822949, −5.41983973826718741092917436609, −4.75155912808179140806546997577, −3.58438527726883109694818500350, −2.55113509426416046864608780393, −2.01041619858425681819887553660, −0.17119675712263131078427052262, 1.41089095484184255939031043728, 2.59180227682824301438941407063, 3.52075866584104621994546246123, 4.07131668718030789782450564991, 5.34340494565392691008750437443, 6.29151951440309525348808023272, 7.14112207849680786154867289613, 7.917584596011711030826361081198, 8.369301653000032104347041155791, 9.394842709602951768578856357850

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