Properties

Label 2-28e2-1.1-c3-0-50
Degree $2$
Conductor $784$
Sign $-1$
Analytic cond. $46.2574$
Root an. cond. $6.80128$
Motivic weight $3$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 6·3-s − 8·5-s + 9·9-s − 56·11-s + 28·13-s − 48·15-s + 90·17-s + 74·19-s + 96·23-s − 61·25-s − 108·27-s − 222·29-s − 100·31-s − 336·33-s + 58·37-s + 168·39-s − 422·41-s − 512·43-s − 72·45-s + 148·47-s + 540·51-s − 642·53-s + 448·55-s + 444·57-s − 318·59-s − 720·61-s − 224·65-s + ⋯
L(s)  = 1  + 1.15·3-s − 0.715·5-s + 1/3·9-s − 1.53·11-s + 0.597·13-s − 0.826·15-s + 1.28·17-s + 0.893·19-s + 0.870·23-s − 0.487·25-s − 0.769·27-s − 1.42·29-s − 0.579·31-s − 1.77·33-s + 0.257·37-s + 0.689·39-s − 1.60·41-s − 1.81·43-s − 0.238·45-s + 0.459·47-s + 1.48·51-s − 1.66·53-s + 1.09·55-s + 1.03·57-s − 0.701·59-s − 1.51·61-s − 0.427·65-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(784\)    =    \(2^{4} \cdot 7^{2}\)
Sign: $-1$
Analytic conductor: \(46.2574\)
Root analytic conductor: \(6.80128\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 784,\ (\ :3/2),\ -1)\)

Particular Values

\(L(2)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 \)
good3 \( 1 - 2 p T + p^{3} T^{2} \)
5 \( 1 + 8 T + p^{3} T^{2} \)
11 \( 1 + 56 T + p^{3} T^{2} \)
13 \( 1 - 28 T + p^{3} T^{2} \)
17 \( 1 - 90 T + p^{3} T^{2} \)
19 \( 1 - 74 T + p^{3} T^{2} \)
23 \( 1 - 96 T + p^{3} T^{2} \)
29 \( 1 + 222 T + p^{3} T^{2} \)
31 \( 1 + 100 T + p^{3} T^{2} \)
37 \( 1 - 58 T + p^{3} T^{2} \)
41 \( 1 + 422 T + p^{3} T^{2} \)
43 \( 1 + 512 T + p^{3} T^{2} \)
47 \( 1 - 148 T + p^{3} T^{2} \)
53 \( 1 + 642 T + p^{3} T^{2} \)
59 \( 1 + 318 T + p^{3} T^{2} \)
61 \( 1 + 720 T + p^{3} T^{2} \)
67 \( 1 - 412 T + p^{3} T^{2} \)
71 \( 1 + 448 T + p^{3} T^{2} \)
73 \( 1 + 994 T + p^{3} T^{2} \)
79 \( 1 - 296 T + p^{3} T^{2} \)
83 \( 1 - 386 T + p^{3} T^{2} \)
89 \( 1 - 6 T + p^{3} T^{2} \)
97 \( 1 - 138 T + p^{3} T^{2} \)
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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

−9.379280704228272106499040754305, −8.473115963865702257903450793502, −7.76453072727515427067824410587, −7.40109030284861566637131544576, −5.80224917138952816022061552195, −4.93066755587831069603466742386, −3.42279428186260198787099823150, −3.17434245525254923117420114742, −1.71537766719769320310941150989, 0, 1.71537766719769320310941150989, 3.17434245525254923117420114742, 3.42279428186260198787099823150, 4.93066755587831069603466742386, 5.80224917138952816022061552195, 7.40109030284861566637131544576, 7.76453072727515427067824410587, 8.473115963865702257903450793502, 9.379280704228272106499040754305

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