Properties

Label 2-28e2-4.3-c2-0-13
Degree $2$
Conductor $784$
Sign $1$
Analytic cond. $21.3624$
Root an. cond. $4.62195$
Motivic weight $2$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 8·5-s + 9·9-s − 24·13-s + 16·17-s + 39·25-s − 42·29-s + 70·37-s + 80·41-s − 72·45-s + 90·53-s + 120·61-s + 192·65-s + 96·73-s + 81·81-s − 128·85-s − 160·89-s − 144·97-s − 40·101-s + 182·109-s − 30·113-s − 216·117-s + ⋯
L(s)  = 1  − 8/5·5-s + 9-s − 1.84·13-s + 0.941·17-s + 1.55·25-s − 1.44·29-s + 1.89·37-s + 1.95·41-s − 8/5·45-s + 1.69·53-s + 1.96·61-s + 2.95·65-s + 1.31·73-s + 81-s − 1.50·85-s − 1.79·89-s − 1.48·97-s − 0.396·101-s + 1.66·109-s − 0.265·113-s − 1.84·117-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(784\)    =    \(2^{4} \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(21.3624\)
Root analytic conductor: \(4.62195\)
Motivic weight: \(2\)
Rational: yes
Arithmetic: yes
Character: $\chi_{784} (687, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 784,\ (\ :1),\ 1)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(1.189337803\)
\(L(\frac12)\) \(\approx\) \(1.189337803\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 \)
good3 \( ( 1 - p T )( 1 + p T ) \)
5 \( 1 + 8 T + p^{2} T^{2} \)
11 \( ( 1 - p T )( 1 + p T ) \)
13 \( 1 + 24 T + p^{2} T^{2} \)
17 \( 1 - 16 T + p^{2} T^{2} \)
19 \( ( 1 - p T )( 1 + p T ) \)
23 \( ( 1 - p T )( 1 + p T ) \)
29 \( 1 + 42 T + p^{2} T^{2} \)
31 \( ( 1 - p T )( 1 + p T ) \)
37 \( 1 - 70 T + p^{2} T^{2} \)
41 \( 1 - 80 T + p^{2} T^{2} \)
43 \( ( 1 - p T )( 1 + p T ) \)
47 \( ( 1 - p T )( 1 + p T ) \)
53 \( 1 - 90 T + p^{2} T^{2} \)
59 \( ( 1 - p T )( 1 + p T ) \)
61 \( 1 - 120 T + p^{2} T^{2} \)
67 \( ( 1 - p T )( 1 + p T ) \)
71 \( ( 1 - p T )( 1 + p T ) \)
73 \( 1 - 96 T + p^{2} T^{2} \)
79 \( ( 1 - p T )( 1 + p T ) \)
83 \( ( 1 - p T )( 1 + p T ) \)
89 \( 1 + 160 T + p^{2} T^{2} \)
97 \( 1 + 144 T + p^{2} T^{2} \)
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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

−9.984585550284548620294217065085, −9.408881604044397990361414200344, −8.072805259291288642002801669653, −7.49971647495760473194397247034, −7.04361025266016698311353104785, −5.49904266786644395095889145941, −4.44187173240799979717417199936, −3.82857336544422424437801668356, −2.50767016193967557090823352671, −0.70796620604602728574649380204, 0.70796620604602728574649380204, 2.50767016193967557090823352671, 3.82857336544422424437801668356, 4.44187173240799979717417199936, 5.49904266786644395095889145941, 7.04361025266016698311353104785, 7.49971647495760473194397247034, 8.072805259291288642002801669653, 9.408881604044397990361414200344, 9.984585550284548620294217065085

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