Properties

Label 2-1840-5.4-c1-0-57
Degree $2$
Conductor $1840$
Sign $-0.843 + 0.536i$
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  + 1.39i·3-s + (−1.19 − 1.88i)5-s − 4.60i·7-s + 1.04·9-s − 1.56·11-s − 2.60i·13-s + (2.64 − 1.67i)15-s + 0.559i·17-s − 1.16·19-s + 6.44·21-s i·23-s + (−2.12 + 4.52i)25-s + 5.65i·27-s + 3.17·29-s − 10.0·31-s + ⋯
L(s)  = 1  + 0.807i·3-s + (−0.536 − 0.843i)5-s − 1.74i·7-s + 0.347·9-s − 0.472·11-s − 0.721i·13-s + (0.681 − 0.433i)15-s + 0.135i·17-s − 0.267·19-s + 1.40·21-s − 0.208i·23-s + (−0.424 + 0.905i)25-s + 1.08i·27-s + 0.589·29-s − 1.80·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.843 + 0.536i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.843 + 0.536i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $-0.843 + 0.536i$
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: \((2,\ 1840,\ (\ :1/2),\ -0.843 + 0.536i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.7181762655\)
\(L(\frac12)\) \(\approx\) \(0.7181762655\)
\(L(\frac{3}{2})\) 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 \( 1 + (1.19 + 1.88i)T \)
23 \( 1 + iT \)
good3 \( 1 - 1.39iT - 3T^{2} \)
7 \( 1 + 4.60iT - 7T^{2} \)
11 \( 1 + 1.56T + 11T^{2} \)
13 \( 1 + 2.60iT - 13T^{2} \)
17 \( 1 - 0.559iT - 17T^{2} \)
19 \( 1 + 1.16T + 19T^{2} \)
29 \( 1 - 3.17T + 29T^{2} \)
31 \( 1 + 10.0T + 31T^{2} \)
37 \( 1 - 5.07iT - 37T^{2} \)
41 \( 1 + 11.8T + 41T^{2} \)
43 \( 1 + 2.76iT - 43T^{2} \)
47 \( 1 + 9.32iT - 47T^{2} \)
53 \( 1 - 5.54iT - 53T^{2} \)
59 \( 1 - 3.84T + 59T^{2} \)
61 \( 1 + 4.29T + 61T^{2} \)
67 \( 1 + 2.60iT - 67T^{2} \)
71 \( 1 + 7.89T + 71T^{2} \)
73 \( 1 + 9.90iT - 73T^{2} \)
79 \( 1 - 12.0T + 79T^{2} \)
83 \( 1 - 13.3iT - 83T^{2} \)
89 \( 1 - 7.71T + 89T^{2} \)
97 \( 1 + 2.62iT - 97T^{2} \)
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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

−8.954478775367390916036475533844, −8.108530246152222744470515285482, −7.45956319629399072991543525317, −6.73616996183397989959744380645, −5.30721558893018936454661774595, −4.74854351960243023315157578176, −3.92454908603904624365931328644, −3.40998760491534980879845964493, −1.49331525996767358119624954116, −0.26186588378419312036299519379, 1.82760732286332101745162688280, 2.50882715273053985334232942987, 3.53367275987610326336762585147, 4.75312715731865548401248437228, 5.75533643186258221886099362815, 6.48996138755531424476649557166, 7.18156521897863206510654813042, 7.922214679205574072728820905247, 8.689280547611171568657164633632, 9.444245080725279045060008974281

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