Properties

Label 2-3840-8.5-c1-0-47
Degree $2$
Conductor $3840$
Sign $-0.707 + 0.707i$
Analytic cond. $30.6625$
Root an. cond. $5.53737$
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 i·5-s − 9-s + 2i·13-s − 15-s + 6·17-s − 4i·19-s − 8·23-s − 25-s + i·27-s − 2i·29-s + 4·31-s − 10i·37-s + 2·39-s − 2·41-s + ⋯
L(s)  = 1  − 0.577i·3-s − 0.447i·5-s − 0.333·9-s + 0.554i·13-s − 0.258·15-s + 1.45·17-s − 0.917i·19-s − 1.66·23-s − 0.200·25-s + 0.192i·27-s − 0.371i·29-s + 0.718·31-s − 1.64i·37-s + 0.320·39-s − 0.312·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 3840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 3840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.707 + 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(3840\)    =    \(2^{8} \cdot 3 \cdot 5\)
Sign: $-0.707 + 0.707i$
Analytic conductor: \(30.6625\)
Root analytic conductor: \(5.53737\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{3840} (1921, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 3840,\ (\ :1/2),\ -0.707 + 0.707i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.341664838\)
\(L(\frac12)\) \(\approx\) \(1.341664838\)
\(L(\frac{3}{2})\) 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 \( 1 + iT \)
5 \( 1 + iT \)
good7 \( 1 + 7T^{2} \)
11 \( 1 - 11T^{2} \)
13 \( 1 - 2iT - 13T^{2} \)
17 \( 1 - 6T + 17T^{2} \)
19 \( 1 + 4iT - 19T^{2} \)
23 \( 1 + 8T + 23T^{2} \)
29 \( 1 + 2iT - 29T^{2} \)
31 \( 1 - 4T + 31T^{2} \)
37 \( 1 + 10iT - 37T^{2} \)
41 \( 1 + 2T + 41T^{2} \)
43 \( 1 - 4iT - 43T^{2} \)
47 \( 1 - 8T + 47T^{2} \)
53 \( 1 - 2iT - 53T^{2} \)
59 \( 1 + 8iT - 59T^{2} \)
61 \( 1 + 2iT - 61T^{2} \)
67 \( 1 + 12iT - 67T^{2} \)
71 \( 1 + 8T + 71T^{2} \)
73 \( 1 - 14T + 73T^{2} \)
79 \( 1 + 12T + 79T^{2} \)
83 \( 1 + 4iT - 83T^{2} \)
89 \( 1 - 14T + 89T^{2} \)
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

−7.965743589608975679233923328142, −7.71604590658453268096394262956, −6.70192636153825363612406782316, −6.02953872046730374709736573289, −5.30441820394794900917805333909, −4.40475011416131343569874803981, −3.55120584020870056508697459347, −2.46609638879247422239295151276, −1.56169011630807567410406283985, −0.40653967383218646315047504887, 1.26802235711140916350607979965, 2.55338153179805031541196666305, 3.41670308392441788508564955804, 4.02502835484179707680358310849, 5.08152324919443367659255227682, 5.78690743690175185560878556349, 6.37962823724393061817821724156, 7.47041099164964697221049263451, 8.035570985380482134476749926426, 8.650999426864013446260208181150

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