Properties

Label 2-2640-5.4-c1-0-15
Degree $2$
Conductor $2640$
Sign $-0.391 - 0.920i$
Analytic cond. $21.0805$
Root an. cond. $4.59135$
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 + (2.05 − 0.874i)5-s − 1.46i·7-s − 9-s − 11-s + 5.53i·13-s + (0.874 + 2.05i)15-s + 8.15i·17-s − 2.94·19-s + 1.46·21-s − 2.87i·23-s + (3.47 − 3.59i)25-s i·27-s − 5.70·29-s − 5.49·31-s + ⋯
L(s)  = 1  + 0.577i·3-s + (0.920 − 0.391i)5-s − 0.552i·7-s − 0.333·9-s − 0.301·11-s + 1.53i·13-s + (0.225 + 0.531i)15-s + 1.97i·17-s − 0.674·19-s + 0.319·21-s − 0.600i·23-s + (0.694 − 0.719i)25-s − 0.192i·27-s − 1.05·29-s − 0.987·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2640 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.391 - 0.920i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2640 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.391 - 0.920i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2640\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 11\)
Sign: $-0.391 - 0.920i$
Analytic conductor: \(21.0805\)
Root analytic conductor: \(4.59135\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{2640} (529, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 2640,\ (\ :1/2),\ -0.391 - 0.920i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.486332634\)
\(L(\frac12)\) \(\approx\) \(1.486332634\)
\(L(\frac{3}{2})\) 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 \( 1 + (-2.05 + 0.874i)T \)
11 \( 1 + T \)
good7 \( 1 + 1.46iT - 7T^{2} \)
13 \( 1 - 5.53iT - 13T^{2} \)
17 \( 1 - 8.15iT - 17T^{2} \)
19 \( 1 + 2.94T + 19T^{2} \)
23 \( 1 + 2.87iT - 23T^{2} \)
29 \( 1 + 5.70T + 29T^{2} \)
31 \( 1 + 5.49T + 31T^{2} \)
37 \( 1 - 7.86iT - 37T^{2} \)
41 \( 1 + 0.761T + 41T^{2} \)
43 \( 1 - 0.841iT - 43T^{2} \)
47 \( 1 - 12.1iT - 47T^{2} \)
53 \( 1 + 8.00iT - 53T^{2} \)
59 \( 1 - 6.57T + 59T^{2} \)
61 \( 1 + 8.37T + 61T^{2} \)
67 \( 1 - 1.44iT - 67T^{2} \)
71 \( 1 + 10.1T + 71T^{2} \)
73 \( 1 - 5.07iT - 73T^{2} \)
79 \( 1 - 13.8T + 79T^{2} \)
83 \( 1 - 6.51iT - 83T^{2} \)
89 \( 1 - 14.4T + 89T^{2} \)
97 \( 1 + 0.207iT - 97T^{2} \)
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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

−9.081147459942494909303490448272, −8.588153124729839814509972908225, −7.66908882832736871977178637702, −6.50809950357748206193295869605, −6.15567502335441147352530107679, −5.11353536121034264116555574582, −4.31944811116694726235833539026, −3.70899097570956985620807427857, −2.27264046291933202570993152151, −1.48841551238601574533972574229, 0.45480941520806087025396194952, 1.96308132816294237342821310936, 2.65779321781705540303314056779, 3.48248131124014224548678469650, 5.11913338556362745640295749315, 5.51895905199646307134677766594, 6.19993483679398107505881519510, 7.40262589654332195007549130443, 7.46753597607230656449369466462, 8.819568448837485869362884025376

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