Properties

Label 2-1840-5.4-c1-0-18
Degree $2$
Conductor $1840$
Sign $-0.574 - 0.818i$
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  + 2.40i·3-s + (1.83 − 1.28i)5-s + 0.706i·7-s − 2.79·9-s − 0.747·11-s + 1.29i·13-s + (3.09 + 4.40i)15-s + 5.50i·17-s + 2.44·19-s − 1.70·21-s i·23-s + (1.70 − 4.70i)25-s + 0.483i·27-s − 5.72·29-s − 7.52·31-s + ⋯
L(s)  = 1  + 1.39i·3-s + (0.818 − 0.574i)5-s + 0.267i·7-s − 0.933·9-s − 0.225·11-s + 0.358i·13-s + (0.798 + 1.13i)15-s + 1.33i·17-s + 0.561·19-s − 0.371·21-s − 0.208i·23-s + (0.340 − 0.940i)25-s + 0.0930i·27-s − 1.06·29-s − 1.35·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.574 - 0.818i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.574 - 0.818i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1840\)    =    \(2^{4} \cdot 5 \cdot 23\)
Sign: $-0.574 - 0.818i$
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: \((2,\ 1840,\ (\ :1/2),\ -0.574 - 0.818i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.778010797\)
\(L(\frac12)\) \(\approx\) \(1.778010797\)
\(L(\frac{3}{2})\) 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 \( 1 + (-1.83 + 1.28i)T \)
23 \( 1 + iT \)
good3 \( 1 - 2.40iT - 3T^{2} \)
7 \( 1 - 0.706iT - 7T^{2} \)
11 \( 1 + 0.747T + 11T^{2} \)
13 \( 1 - 1.29iT - 13T^{2} \)
17 \( 1 - 5.50iT - 17T^{2} \)
19 \( 1 - 2.44T + 19T^{2} \)
29 \( 1 + 5.72T + 29T^{2} \)
31 \( 1 + 7.52T + 31T^{2} \)
37 \( 1 - 5.07iT - 37T^{2} \)
41 \( 1 - 10.0T + 41T^{2} \)
43 \( 1 - 5.34iT - 43T^{2} \)
47 \( 1 - 7.90iT - 47T^{2} \)
53 \( 1 - 5.84iT - 53T^{2} \)
59 \( 1 - 12.4T + 59T^{2} \)
61 \( 1 - 1.57T + 61T^{2} \)
67 \( 1 - 5.25iT - 67T^{2} \)
71 \( 1 + 2.68T + 71T^{2} \)
73 \( 1 - 10.4iT - 73T^{2} \)
79 \( 1 + 6.55T + 79T^{2} \)
83 \( 1 + 12.7iT - 83T^{2} \)
89 \( 1 + 13.6T + 89T^{2} \)
97 \( 1 + 1.50iT - 97T^{2} \)
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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

−9.527779190838386259318446460293, −8.992494278058320480770321803370, −8.278065603966166418616594337519, −7.15512149383742875481040194339, −5.83828941517399836083308428636, −5.59074543650840547832592385818, −4.51365545197555594245959122036, −3.94103318616754138541135936276, −2.75474079422005080693226161935, −1.52482652232490779202594214871, 0.65438480873931064870453112590, 1.91305495953829818186867156487, 2.62269364485462266410545050575, 3.73990982730062571433652153136, 5.36019271202944019830766408326, 5.73410997131736588997955363065, 6.95392261519260550973779354748, 7.17166259807410657685913352797, 7.87715931988137355999723678574, 9.038202109769047832017966680785

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