Properties

Label 2-28e2-1.1-c1-0-10
Degree $2$
Conductor $784$
Sign $1$
Analytic cond. $6.26027$
Root an. cond. $2.50205$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3·3-s + 5-s + 6·9-s + 11-s − 2·13-s + 3·15-s − 3·17-s + 5·19-s + 3·23-s − 4·25-s + 9·27-s − 6·29-s − 31-s + 3·33-s − 5·37-s − 6·39-s + 10·41-s + 4·43-s + 6·45-s + 47-s − 9·51-s − 9·53-s + 55-s + 15·57-s + 3·59-s − 3·61-s − 2·65-s + ⋯
L(s)  = 1  + 1.73·3-s + 0.447·5-s + 2·9-s + 0.301·11-s − 0.554·13-s + 0.774·15-s − 0.727·17-s + 1.14·19-s + 0.625·23-s − 4/5·25-s + 1.73·27-s − 1.11·29-s − 0.179·31-s + 0.522·33-s − 0.821·37-s − 0.960·39-s + 1.56·41-s + 0.609·43-s + 0.894·45-s + 0.145·47-s − 1.26·51-s − 1.23·53-s + 0.134·55-s + 1.98·57-s + 0.390·59-s − 0.384·61-s − 0.248·65-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(784\)    =    \(2^{4} \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(6.26027\)
Root analytic conductor: \(2.50205\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: $\chi_{784} (1, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 784,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.938805148\)
\(L(\frac12)\) \(\approx\) \(2.938805148\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 \)
good3 \( 1 - p T + p T^{2} \)
5 \( 1 - T + p T^{2} \)
11 \( 1 - T + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
17 \( 1 + 3 T + p T^{2} \)
19 \( 1 - 5 T + p T^{2} \)
23 \( 1 - 3 T + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + T + p T^{2} \)
37 \( 1 + 5 T + p T^{2} \)
41 \( 1 - 10 T + p T^{2} \)
43 \( 1 - 4 T + p T^{2} \)
47 \( 1 - T + p T^{2} \)
53 \( 1 + 9 T + p T^{2} \)
59 \( 1 - 3 T + p T^{2} \)
61 \( 1 + 3 T + p T^{2} \)
67 \( 1 + 11 T + p T^{2} \)
71 \( 1 + 16 T + p T^{2} \)
73 \( 1 + 7 T + p T^{2} \)
79 \( 1 - 11 T + p T^{2} \)
83 \( 1 + 4 T + p T^{2} \)
89 \( 1 - 9 T + p T^{2} \)
97 \( 1 + 6 T + p T^{2} \)
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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

−9.909934185067456468681392565173, −9.287262093819373491188835101633, −8.834897152421966708934214741373, −7.64209225546588621077680033121, −7.26679637140838061473697520358, −5.93137139427462572617317343004, −4.64642458837335514011656102062, −3.60825384437311163852849219399, −2.66681820396833997806059796550, −1.67920345541699519630742216151, 1.67920345541699519630742216151, 2.66681820396833997806059796550, 3.60825384437311163852849219399, 4.64642458837335514011656102062, 5.93137139427462572617317343004, 7.26679637140838061473697520358, 7.64209225546588621077680033121, 8.834897152421966708934214741373, 9.287262093819373491188835101633, 9.909934185067456468681392565173

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