Properties

Label 2-768-8.5-c3-0-27
Degree $2$
Conductor $768$
Sign $0.707 + 0.707i$
Analytic cond. $45.3134$
Root an. cond. $6.73152$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3i·3-s − 6i·5-s − 16·7-s − 9·9-s + 12i·11-s + 38i·13-s + 18·15-s − 126·17-s − 20i·19-s − 48i·21-s + 168·23-s + 89·25-s − 27i·27-s + 30i·29-s + 88·31-s + ⋯
L(s)  = 1  + 0.577i·3-s − 0.536i·5-s − 0.863·7-s − 0.333·9-s + 0.328i·11-s + 0.810i·13-s + 0.309·15-s − 1.79·17-s − 0.241i·19-s − 0.498i·21-s + 1.52·23-s + 0.711·25-s − 0.192i·27-s + 0.192i·29-s + 0.509·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.707 + 0.707i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (0.707 + 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(768\)    =    \(2^{8} \cdot 3\)
Sign: $0.707 + 0.707i$
Analytic conductor: \(45.3134\)
Root analytic conductor: \(6.73152\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{768} (385, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 768,\ (\ :3/2),\ 0.707 + 0.707i)\)

Particular Values

\(L(2)\) \(\approx\) \(1.230811391\)
\(L(\frac12)\) \(\approx\) \(1.230811391\)
\(L(\frac{5}{2})\) 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 \( 1 - 3iT \)
good5 \( 1 + 6iT - 125T^{2} \)
7 \( 1 + 16T + 343T^{2} \)
11 \( 1 - 12iT - 1.33e3T^{2} \)
13 \( 1 - 38iT - 2.19e3T^{2} \)
17 \( 1 + 126T + 4.91e3T^{2} \)
19 \( 1 + 20iT - 6.85e3T^{2} \)
23 \( 1 - 168T + 1.21e4T^{2} \)
29 \( 1 - 30iT - 2.43e4T^{2} \)
31 \( 1 - 88T + 2.97e4T^{2} \)
37 \( 1 + 254iT - 5.06e4T^{2} \)
41 \( 1 + 42T + 6.89e4T^{2} \)
43 \( 1 + 52iT - 7.95e4T^{2} \)
47 \( 1 - 96T + 1.03e5T^{2} \)
53 \( 1 + 198iT - 1.48e5T^{2} \)
59 \( 1 + 660iT - 2.05e5T^{2} \)
61 \( 1 + 538iT - 2.26e5T^{2} \)
67 \( 1 + 884iT - 3.00e5T^{2} \)
71 \( 1 - 792T + 3.57e5T^{2} \)
73 \( 1 + 218T + 3.89e5T^{2} \)
79 \( 1 - 520T + 4.93e5T^{2} \)
83 \( 1 - 492iT - 5.71e5T^{2} \)
89 \( 1 + 810T + 7.04e5T^{2} \)
97 \( 1 - 1.15e3T + 9.12e5T^{2} \)
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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

−9.498111105333350892084779592978, −9.214618776931419988546075362463, −8.398935249589196886577598331979, −6.95812402953738979044416973864, −6.47715174776521429248282211237, −5.08333347813586004880108509639, −4.46602022798765925081095274529, −3.35154868152655505735652216512, −2.13195738594833807605148774066, −0.41852356046069948294231679342, 0.905440116914145266160422663682, 2.56142429047478835611354208653, 3.21528388210715666629842769754, 4.61504904368624792666605264565, 5.84910501489744073833959044720, 6.66585938539681730376616789586, 7.18970957262973087806883537088, 8.398805403693490735520427270585, 9.052093973087600044773336348302, 10.14954254829679674780230747533

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