Properties

Label 2-28e2-16.5-c1-0-32
Degree $2$
Conductor $784$
Sign $0.923 + 0.382i$
Analytic cond. $6.26027$
Root an. cond. $2.50205$
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  + (−1 + i)2-s − 2i·4-s + (−2 − 2i)5-s + (2 + 2i)8-s + 3i·9-s + 4·10-s + (1 + i)11-s − 4·16-s + 2·17-s + (−3 − 3i)18-s + (−2 + 2i)19-s + (−4 + 4i)20-s − 2·22-s − 6i·23-s + 3i·25-s + ⋯
L(s)  = 1  + (−0.707 + 0.707i)2-s i·4-s + (−0.894 − 0.894i)5-s + (0.707 + 0.707i)8-s + i·9-s + 1.26·10-s + (0.301 + 0.301i)11-s − 16-s + 0.485·17-s + (−0.707 − 0.707i)18-s + (−0.458 + 0.458i)19-s + (−0.894 + 0.894i)20-s − 0.426·22-s − 1.25i·23-s + 0.600i·25-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.923 + 0.382i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.923 + 0.382i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(784\)    =    \(2^{4} \cdot 7^{2}\)
Sign: $0.923 + 0.382i$
Analytic conductor: \(6.26027\)
Root analytic conductor: \(2.50205\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{784} (197, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 784,\ (\ :1/2),\ 0.923 + 0.382i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.798004 - 0.158733i\)
\(L(\frac12)\) \(\approx\) \(0.798004 - 0.158733i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (1 - i)T \)
7 \( 1 \)
good3 \( 1 - 3iT^{2} \)
5 \( 1 + (2 + 2i)T + 5iT^{2} \)
11 \( 1 + (-1 - i)T + 11iT^{2} \)
13 \( 1 - 13iT^{2} \)
17 \( 1 - 2T + 17T^{2} \)
19 \( 1 + (2 - 2i)T - 19iT^{2} \)
23 \( 1 + 6iT - 23T^{2} \)
29 \( 1 + (-7 + 7i)T - 29iT^{2} \)
31 \( 1 - 8T + 31T^{2} \)
37 \( 1 + (5 + 5i)T + 37iT^{2} \)
41 \( 1 + 10iT - 41T^{2} \)
43 \( 1 + (1 + i)T + 43iT^{2} \)
47 \( 1 - 12T + 47T^{2} \)
53 \( 1 + (1 + i)T + 53iT^{2} \)
59 \( 1 + (8 + 8i)T + 59iT^{2} \)
61 \( 1 + (6 - 6i)T - 61iT^{2} \)
67 \( 1 + (-3 + 3i)T - 67iT^{2} \)
71 \( 1 - 71T^{2} \)
73 \( 1 - 6iT - 73T^{2} \)
79 \( 1 - 10T + 79T^{2} \)
83 \( 1 + (-10 + 10i)T - 83iT^{2} \)
89 \( 1 - 14iT - 89T^{2} \)
97 \( 1 - 2T + 97T^{2} \)
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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

−10.25659233632624403058140503210, −9.136509592257109452326992971534, −8.292922770104392256645978453947, −7.971842557862310803922103731323, −6.96382996137667195536448325336, −5.91864304319347871997126854932, −4.83270976941007915784579483180, −4.22729191304944437007389581291, −2.21925090854364058198112603049, −0.64909663662900655600071297757, 1.10861372974426628568882498339, 2.97820188139708549960425720950, 3.45090509881951208464321337002, 4.57010123587605586027017564728, 6.34127366071256277371655773187, 7.02703721455337747646231827117, 7.897046213596400062573097288406, 8.729460618470114343075716107426, 9.558580908218755588735998872242, 10.44111012520458151237336616860

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