Properties

Label 2-768-12.11-c1-0-0
Degree $2$
Conductor $768$
Sign $-1$
Analytic cond. $6.13251$
Root an. cond. $2.47639$
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  − 1.73·3-s + 2.82i·5-s + 4.89i·7-s + 2.99·9-s − 3.46·11-s − 4.89i·15-s − 8.48i·21-s − 3.00·25-s − 5.19·27-s − 2.82i·29-s − 4.89i·31-s + 5.99·33-s − 13.8·35-s + 8.48i·45-s − 16.9·49-s + ⋯
L(s)  = 1  − 1.00·3-s + 1.26i·5-s + 1.85i·7-s + 0.999·9-s − 1.04·11-s − 1.26i·15-s − 1.85i·21-s − 0.600·25-s − 1.00·27-s − 0.525i·29-s − 0.879i·31-s + 1.04·33-s − 2.34·35-s + 1.26i·45-s − 2.42·49-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(768\)    =    \(2^{8} \cdot 3\)
Sign: $-1$
Analytic conductor: \(6.13251\)
Root analytic conductor: \(2.47639\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{768} (767, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 768,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(\approx\) \(-0.621190i\)
\(L(\frac12)\) \(\approx\) \(-0.621190i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + 1.73T \)
good5 \( 1 - 2.82iT - 5T^{2} \)
7 \( 1 - 4.89iT - 7T^{2} \)
11 \( 1 + 3.46T + 11T^{2} \)
13 \( 1 + 13T^{2} \)
17 \( 1 - 17T^{2} \)
19 \( 1 - 19T^{2} \)
23 \( 1 + 23T^{2} \)
29 \( 1 + 2.82iT - 29T^{2} \)
31 \( 1 + 4.89iT - 31T^{2} \)
37 \( 1 + 37T^{2} \)
41 \( 1 - 41T^{2} \)
43 \( 1 - 43T^{2} \)
47 \( 1 + 47T^{2} \)
53 \( 1 - 14.1iT - 53T^{2} \)
59 \( 1 + 10.3T + 59T^{2} \)
61 \( 1 + 61T^{2} \)
67 \( 1 - 67T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 + 14T + 73T^{2} \)
79 \( 1 - 14.6iT - 79T^{2} \)
83 \( 1 - 17.3T + 83T^{2} \)
89 \( 1 - 89T^{2} \)
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

−10.85706137974362881450179570029, −10.07119714270436799817653315049, −9.217481215712470752668141570010, −8.042184436513925800335542659949, −7.16711275172875094805076375514, −6.07465737404072177471866593433, −5.74305601871394028333282368187, −4.64500702455603336864548345378, −3.03813145797375299224413978357, −2.18484952672149358638869733291, 0.36826834496503402790335027340, 1.42884296640537046417987972835, 3.64304143512017664889994801086, 4.72500145604183245889614597180, 5.09143092347430032188987251817, 6.37453156957916658313728768998, 7.32570669545723150595181355179, 7.981567038197500530863098914061, 9.144678046671892915320435899698, 10.26417275964654300059175735370

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