Properties

Label 2-3840-40.29-c1-0-39
Degree $2$
Conductor $3840$
Sign $0.316 - 0.948i$
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  + 3-s + (1 + 2i)5-s + 9-s + 4i·11-s + 2·13-s + (1 + 2i)15-s − 2i·17-s − 2i·19-s − 6i·23-s + (−3 + 4i)25-s + 27-s + 8i·29-s + 8·31-s + 4i·33-s + 6·37-s + ⋯
L(s)  = 1  + 0.577·3-s + (0.447 + 0.894i)5-s + 0.333·9-s + 1.20i·11-s + 0.554·13-s + (0.258 + 0.516i)15-s − 0.485i·17-s − 0.458i·19-s − 1.25i·23-s + (−0.600 + 0.800i)25-s + 0.192·27-s + 1.48i·29-s + 1.43·31-s + 0.696i·33-s + 0.986·37-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 3840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.316 - 0.948i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 3840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.316 - 0.948i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(3840\)    =    \(2^{8} \cdot 3 \cdot 5\)
Sign: $0.316 - 0.948i$
Analytic conductor: \(30.6625\)
Root analytic conductor: \(5.53737\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{3840} (2689, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 3840,\ (\ :1/2),\ 0.316 - 0.948i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.659212618\)
\(L(\frac12)\) \(\approx\) \(2.659212618\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
5 \( 1 + (-1 - 2i)T \)
good7 \( 1 - 7T^{2} \)
11 \( 1 - 4iT - 11T^{2} \)
13 \( 1 - 2T + 13T^{2} \)
17 \( 1 + 2iT - 17T^{2} \)
19 \( 1 + 2iT - 19T^{2} \)
23 \( 1 + 6iT - 23T^{2} \)
29 \( 1 - 8iT - 29T^{2} \)
31 \( 1 - 8T + 31T^{2} \)
37 \( 1 - 6T + 37T^{2} \)
41 \( 1 + 2T + 41T^{2} \)
43 \( 1 + 4T + 43T^{2} \)
47 \( 1 - 6iT - 47T^{2} \)
53 \( 1 - 10T + 53T^{2} \)
59 \( 1 - 8iT - 59T^{2} \)
61 \( 1 - 2iT - 61T^{2} \)
67 \( 1 - 4T + 67T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 + 4iT - 73T^{2} \)
79 \( 1 + 4T + 79T^{2} \)
83 \( 1 + 16T + 83T^{2} \)
89 \( 1 + 18T + 89T^{2} \)
97 \( 1 - 16iT - 97T^{2} \)
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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

−8.700382686020305581566614467706, −7.86250809047460709688331463688, −6.97277078847425855413410134123, −6.74952239572403085484279716981, −5.72884876311585925854257164913, −4.73537110943838174246563630263, −4.03028866975095719117720014891, −2.87159732436951834497185665119, −2.45831178234769708689973395773, −1.28157948058322940001445269669, 0.76668829466505336779209408003, 1.71410433396475413249449058911, 2.78219898644770170930627616998, 3.75945022253446010858029934728, 4.37332572668820143007912395186, 5.58968782373938515454911508644, 5.88224850424786620632070811355, 6.84296105568389350330122129598, 8.007644658493753919732255863642, 8.320907708272620910301135254215

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