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Properties

Label 2-768-8.3-c2-0-26
Degree $2$
Conductor $768$
Sign $-0.707 + 0.707i$
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  − 1.73·3-s − 8.29i·5-s − 8.55i·7-s + 2.99·9-s + 13.7·11-s − 17.0i·13-s + 14.3i·15-s + 20.3·17-s + 20.4·19-s + 14.8i·21-s + 5.51i·23-s − 43.7·25-s − 5.19·27-s − 41.0i·29-s + 22.2i·31-s + ⋯
L(s)  = 1  − 0.577·3-s − 1.65i·5-s − 1.22i·7-s + 0.333·9-s + 1.25·11-s − 1.31i·13-s + 0.957i·15-s + 1.19·17-s + 1.07·19-s + 0.705i·21-s + 0.239i·23-s − 1.75·25-s − 0.192·27-s − 1.41i·29-s + 0.719i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(768\)    =    \(2^{8} \cdot 3\)
Sign: $-0.707 + 0.707i$
Analytic conductor: \(20.9264\)
Root analytic conductor: \(4.57454\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{768} (127, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 768,\ (\ :1),\ -0.707 + 0.707i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(1.674245815\)
\(L(\frac12)\) \(\approx\) \(1.674245815\)
\(L(2)\) 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 \( 1 + 1.73T \)
good5 \( 1 + 8.29iT - 25T^{2} \)
7 \( 1 + 8.55iT - 49T^{2} \)
11 \( 1 - 13.7T + 121T^{2} \)
13 \( 1 + 17.0iT - 169T^{2} \)
17 \( 1 - 20.3T + 289T^{2} \)
19 \( 1 - 20.4T + 361T^{2} \)
23 \( 1 - 5.51iT - 529T^{2} \)
29 \( 1 + 41.0iT - 841T^{2} \)
31 \( 1 - 22.2iT - 961T^{2} \)
37 \( 1 + 11.6iT - 1.36e3T^{2} \)
41 \( 1 + 35.9T + 1.68e3T^{2} \)
43 \( 1 - 66.8T + 1.84e3T^{2} \)
47 \( 1 - 19.9iT - 2.20e3T^{2} \)
53 \( 1 - 17.6iT - 2.80e3T^{2} \)
59 \( 1 + 62.1T + 3.48e3T^{2} \)
61 \( 1 - 47.4iT - 3.72e3T^{2} \)
67 \( 1 - 74.8T + 4.48e3T^{2} \)
71 \( 1 + 16.9iT - 5.04e3T^{2} \)
73 \( 1 + 101.T + 5.32e3T^{2} \)
79 \( 1 - 0.879iT - 6.24e3T^{2} \)
83 \( 1 - 23.2T + 6.88e3T^{2} \)
89 \( 1 - 16.3T + 7.92e3T^{2} \)
97 \( 1 - 188.T + 9.40e3T^{2} \)
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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

−9.808319976084943067089546476405, −9.075392274719346743892108805801, −7.943538397599348396427963124460, −7.40173732010301106490350752471, −6.04146910432035488421817453239, −5.29870076223452926650937050569, −4.38687789767394775832288685050, −3.53474641938904486264938306992, −1.19421680390314747396562095121, −0.77825587207793139429770356020, 1.65485461872117369340464436157, 2.91817761448426790363007188672, 3.86356033461693924928385872153, 5.29863543322989477901845956665, 6.21055907043296080067430546852, 6.77853965099789966974335064483, 7.59338022088752839392761629149, 8.984402557914438872650704886766, 9.608881216144149536573244141119, 10.50380262554932540037996724559

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