Properties

Label 2-7840-1.1-c1-0-57
Degree $2$
Conductor $7840$
Sign $1$
Analytic cond. $62.6027$
Root an. cond. $7.91218$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 0.385·3-s − 5-s − 2.85·9-s + 5.19·11-s + 6.04·13-s + 0.385·15-s + 3.19·17-s + 7.52·19-s − 1.70·23-s + 25-s + 2.25·27-s + 7.04·29-s − 6.51·31-s − 2.00·33-s − 2.85·37-s − 2.32·39-s + 41-s + 6.58·43-s + 2.85·45-s + 5.19·47-s − 1.23·51-s − 4.04·53-s − 5.19·55-s − 2.89·57-s − 7.28·59-s − 6.65·61-s − 6.04·65-s + ⋯
L(s)  = 1  − 0.222·3-s − 0.447·5-s − 0.950·9-s + 1.56·11-s + 1.67·13-s + 0.0994·15-s + 0.774·17-s + 1.72·19-s − 0.355·23-s + 0.200·25-s + 0.433·27-s + 1.30·29-s − 1.16·31-s − 0.348·33-s − 0.468·37-s − 0.373·39-s + 0.156·41-s + 1.00·43-s + 0.425·45-s + 0.757·47-s − 0.172·51-s − 0.555·53-s − 0.699·55-s − 0.383·57-s − 0.947·59-s − 0.852·61-s − 0.749·65-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 7840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 7840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(7840\)    =    \(2^{5} \cdot 5 \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(62.6027\)
Root analytic conductor: \(7.91218\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 7840,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.186671794\)
\(L(\frac12)\) \(\approx\) \(2.186671794\)
\(L(\frac{3}{2})\) 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 \( 1 + T \)
7 \( 1 \)
good3 \( 1 + 0.385T + 3T^{2} \)
11 \( 1 - 5.19T + 11T^{2} \)
13 \( 1 - 6.04T + 13T^{2} \)
17 \( 1 - 3.19T + 17T^{2} \)
19 \( 1 - 7.52T + 19T^{2} \)
23 \( 1 + 1.70T + 23T^{2} \)
29 \( 1 - 7.04T + 29T^{2} \)
31 \( 1 + 6.51T + 31T^{2} \)
37 \( 1 + 2.85T + 37T^{2} \)
41 \( 1 - T + 41T^{2} \)
43 \( 1 - 6.58T + 43T^{2} \)
47 \( 1 - 5.19T + 47T^{2} \)
53 \( 1 + 4.04T + 53T^{2} \)
59 \( 1 + 7.28T + 59T^{2} \)
61 \( 1 + 6.65T + 61T^{2} \)
67 \( 1 - 11.5T + 67T^{2} \)
71 \( 1 - 11.9T + 71T^{2} \)
73 \( 1 + 8.89T + 73T^{2} \)
79 \( 1 + 4.64T + 79T^{2} \)
83 \( 1 + 4.56T + 83T^{2} \)
89 \( 1 + 2.14T + 89T^{2} \)
97 \( 1 + 0.389T + 97T^{2} \)
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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

−7.896724444710825035609445603782, −7.14189735931559917085671179920, −6.34856202138187031916834190790, −5.85744198498990919507809101559, −5.18382869625383084525518331726, −4.10428262769573852703206418253, −3.55139697775007564592592829462, −2.94783942382580821961463878813, −1.47102915297273095751824368482, −0.837721657859855491855529389603, 0.837721657859855491855529389603, 1.47102915297273095751824368482, 2.94783942382580821961463878813, 3.55139697775007564592592829462, 4.10428262769573852703206418253, 5.18382869625383084525518331726, 5.85744198498990919507809101559, 6.34856202138187031916834190790, 7.14189735931559917085671179920, 7.896724444710825035609445603782

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