Properties

Label 2-648-24.11-c1-0-34
Degree $2$
Conductor $648$
Sign $-1$
Analytic cond. $5.17430$
Root an. cond. $2.27471$
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  − 1.41i·2-s − 2.00·4-s + 2.82i·8-s − 3.78i·11-s + 4.00·16-s − 8.02i·17-s − 8.34·19-s − 5.34·22-s − 5·25-s − 5.65i·32-s − 11.3·34-s + 11.8i·38-s + 0.460i·41-s − 2.34·43-s + 7.56i·44-s + ⋯
L(s)  = 1  − 0.999i·2-s − 1.00·4-s + 1.00i·8-s − 1.14i·11-s + 1.00·16-s − 1.94i·17-s − 1.91·19-s − 1.14·22-s − 25-s − 1.00i·32-s − 1.94·34-s + 1.91i·38-s + 0.0719i·41-s − 0.358·43-s + 1.14i·44-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 648 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(648\)    =    \(2^{3} \cdot 3^{4}\)
Sign: $-1$
Analytic conductor: \(5.17430\)
Root analytic conductor: \(2.27471\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{648} (323, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 648,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(\approx\) \(-0.824870i\)
\(L(\frac12)\) \(\approx\) \(-0.824870i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + 1.41iT \)
3 \( 1 \)
good5 \( 1 + 5T^{2} \)
7 \( 1 - 7T^{2} \)
11 \( 1 + 3.78iT - 11T^{2} \)
13 \( 1 - 13T^{2} \)
17 \( 1 + 8.02iT - 17T^{2} \)
19 \( 1 + 8.34T + 19T^{2} \)
23 \( 1 + 23T^{2} \)
29 \( 1 + 29T^{2} \)
31 \( 1 - 31T^{2} \)
37 \( 1 - 37T^{2} \)
41 \( 1 - 0.460iT - 41T^{2} \)
43 \( 1 + 2.34T + 43T^{2} \)
47 \( 1 + 47T^{2} \)
53 \( 1 + 53T^{2} \)
59 \( 1 + 12.2iT - 59T^{2} \)
61 \( 1 - 61T^{2} \)
67 \( 1 + 14.3T + 67T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 - 13.6T + 73T^{2} \)
79 \( 1 - 79T^{2} \)
83 \( 1 + 2.82iT - 83T^{2} \)
89 \( 1 - 5.65iT - 89T^{2} \)
97 \( 1 - 19.6T + 97T^{2} \)
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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

−10.25925732113206751279818468607, −9.320229397252411977138110405342, −8.642838249226461144087925557949, −7.74291470598763338407748441240, −6.40152793338085444395816460526, −5.34432275054766543978739586691, −4.33527821899086654859756035047, −3.25221440944269677235185566508, −2.18237577280303330503605838984, −0.43824990547743013496252297095, 1.92210431985025915873400622476, 3.89298545530081624117668937954, 4.51615354657652496836115593356, 5.82310435506547778896802177956, 6.47900419701703289200527048364, 7.46643886160990206359066577902, 8.301192212782763618557322012454, 9.010201116591926500470581077527, 10.11590133203919094166445563662, 10.61341225303751529165671074484

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