Properties

Label 2-768-8.5-c1-0-4
Degree $2$
Conductor $768$
Sign $0.707 - 0.707i$
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  i·3-s + 2i·5-s + 4·7-s − 9-s + 4i·11-s + 2i·13-s + 2·15-s − 6·17-s + 4i·19-s − 4i·21-s + 25-s + i·27-s − 2i·29-s + 4·31-s + 4·33-s + ⋯
L(s)  = 1  − 0.577i·3-s + 0.894i·5-s + 1.51·7-s − 0.333·9-s + 1.20i·11-s + 0.554i·13-s + 0.516·15-s − 1.45·17-s + 0.917i·19-s − 0.872i·21-s + 0.200·25-s + 0.192i·27-s − 0.371i·29-s + 0.718·31-s + 0.696·33-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(768\)    =    \(2^{8} \cdot 3\)
Sign: $0.707 - 0.707i$
Analytic conductor: \(6.13251\)
Root analytic conductor: \(2.47639\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{768} (385, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 768,\ (\ :1/2),\ 0.707 - 0.707i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.53053 + 0.633967i\)
\(L(\frac12)\) \(\approx\) \(1.53053 + 0.633967i\)
\(L(\frac{3}{2})\) 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 \( 1 + iT \)
good5 \( 1 - 2iT - 5T^{2} \)
7 \( 1 - 4T + 7T^{2} \)
11 \( 1 - 4iT - 11T^{2} \)
13 \( 1 - 2iT - 13T^{2} \)
17 \( 1 + 6T + 17T^{2} \)
19 \( 1 - 4iT - 19T^{2} \)
23 \( 1 + 23T^{2} \)
29 \( 1 + 2iT - 29T^{2} \)
31 \( 1 - 4T + 31T^{2} \)
37 \( 1 + 2iT - 37T^{2} \)
41 \( 1 + 2T + 41T^{2} \)
43 \( 1 - 4iT - 43T^{2} \)
47 \( 1 - 8T + 47T^{2} \)
53 \( 1 - 10iT - 53T^{2} \)
59 \( 1 + 4iT - 59T^{2} \)
61 \( 1 + 6iT - 61T^{2} \)
67 \( 1 + 4iT - 67T^{2} \)
71 \( 1 - 16T + 71T^{2} \)
73 \( 1 - 6T + 73T^{2} \)
79 \( 1 - 4T + 79T^{2} \)
83 \( 1 + 12iT - 83T^{2} \)
89 \( 1 + 10T + 89T^{2} \)
97 \( 1 + 14T + 97T^{2} \)
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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

−10.67946436509313668025194157594, −9.593903618034796381942119017535, −8.545381017011757937158500388896, −7.73787552333724693574473136306, −7.02870266290699155267383067121, −6.25607939173399545262595113262, −4.93707917873473456252512421277, −4.14469470417919856951895077712, −2.46312818680148202985242208834, −1.69566073913797812775921081438, 0.898833149425865420910600908462, 2.48635200768358468656017896673, 3.97097804215351266167771249436, 4.90976972841541250032652808862, 5.36826190608927672454462656452, 6.67164596864510079035274307057, 7.999934091137468204418698566077, 8.628872410757519339559271625673, 9.038429883758629860250245227080, 10.37942400124764987371244932936

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