Properties

Label 2-768-3.2-c2-0-1
Degree $2$
Conductor $768$
Sign $-0.942 - 0.333i$
Analytic cond. $20.9264$
Root an. cond. $4.57454$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−2.82 − i)3-s + (7.00 + 5.65i)9-s + 14i·11-s − 33.9i·17-s − 16.9·19-s + 25·25-s + (−14.1 − 23.0i)27-s + (14 − 39.5i)33-s + 67.8i·41-s − 84.8·43-s − 49·49-s + (−33.9 + 96i)51-s + (48 + 16.9i)57-s + 82i·59-s − 118.·67-s + ⋯
L(s)  = 1  + (−0.942 − 0.333i)3-s + (0.777 + 0.628i)9-s + 1.27i·11-s − 1.99i·17-s − 0.893·19-s + 25-s + (−0.523 − 0.851i)27-s + (0.424 − 1.19i)33-s + 1.65i·41-s − 1.97·43-s − 0.999·49-s + (−0.665 + 1.88i)51-s + (0.842 + 0.297i)57-s + 1.38i·59-s − 1.77·67-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.942 - 0.333i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.942 - 0.333i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(768\)    =    \(2^{8} \cdot 3\)
Sign: $-0.942 - 0.333i$
Analytic conductor: \(20.9264\)
Root analytic conductor: \(4.57454\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{768} (257, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 768,\ (\ :1),\ -0.942 - 0.333i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.1139276225\)
\(L(\frac12)\) \(\approx\) \(0.1139276225\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 + (2.82 + i)T \)
good5 \( 1 - 25T^{2} \)
7 \( 1 + 49T^{2} \)
11 \( 1 - 14iT - 121T^{2} \)
13 \( 1 + 169T^{2} \)
17 \( 1 + 33.9iT - 289T^{2} \)
19 \( 1 + 16.9T + 361T^{2} \)
23 \( 1 - 529T^{2} \)
29 \( 1 - 841T^{2} \)
31 \( 1 + 961T^{2} \)
37 \( 1 + 1.36e3T^{2} \)
41 \( 1 - 67.8iT - 1.68e3T^{2} \)
43 \( 1 + 84.8T + 1.84e3T^{2} \)
47 \( 1 - 2.20e3T^{2} \)
53 \( 1 - 2.80e3T^{2} \)
59 \( 1 - 82iT - 3.48e3T^{2} \)
61 \( 1 + 3.72e3T^{2} \)
67 \( 1 + 118.T + 4.48e3T^{2} \)
71 \( 1 - 5.04e3T^{2} \)
73 \( 1 + 142T + 5.32e3T^{2} \)
79 \( 1 + 6.24e3T^{2} \)
83 \( 1 + 158iT - 6.88e3T^{2} \)
89 \( 1 + 101. iT - 7.92e3T^{2} \)
97 \( 1 + 94T + 9.40e3T^{2} \)
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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

−10.44174469627434646853694748610, −9.865067662805300368201728009483, −8.877081744942437491707895978961, −7.61332373380343448830432751761, −7.00879917454896232851109247840, −6.23181953872864823937099783579, −4.93195712800416955711357331986, −4.58995259995305007823911337123, −2.80728873216392143731892900783, −1.48952268650664630491492644701, 0.04569525081837175703058432778, 1.54805795712717115100405820466, 3.35805764807088626954579788717, 4.24717716778894650797233325681, 5.38126678357049588843816289882, 6.15659636866224041290773310214, 6.80992643578864394722428814452, 8.225621436517591061926294574118, 8.790313956913252331520393516660, 10.00888202454243871328464342123

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