Properties

Label 2-1620-15.14-c2-0-26
Degree $2$
Conductor $1620$
Sign $0.924 + 0.381i$
Analytic cond. $44.1418$
Root an. cond. $6.64392$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−1.90 + 4.62i)5-s + 0.764i·7-s − 8.06i·11-s − 2.16i·13-s − 24.9·17-s + 20.7·19-s + 16.8·23-s + (−17.7 − 17.6i)25-s − 11.7i·29-s + 0.669·31-s + (−3.53 − 1.45i)35-s + 48.2i·37-s − 62.5i·41-s − 71.3i·43-s + 20.2·47-s + ⋯
L(s)  = 1  + (−0.381 + 0.924i)5-s + 0.109i·7-s − 0.733i·11-s − 0.166i·13-s − 1.46·17-s + 1.09·19-s + 0.732·23-s + (−0.708 − 0.705i)25-s − 0.404i·29-s + 0.0215·31-s + (−0.100 − 0.0417i)35-s + 1.30i·37-s − 1.52i·41-s − 1.65i·43-s + 0.431·47-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.924 + 0.381i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (0.924 + 0.381i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1620\)    =    \(2^{2} \cdot 3^{4} \cdot 5\)
Sign: $0.924 + 0.381i$
Analytic conductor: \(44.1418\)
Root analytic conductor: \(6.64392\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{1620} (809, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1620,\ (\ :1),\ 0.924 + 0.381i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(1.533325499\)
\(L(\frac12)\) \(\approx\) \(1.533325499\)
\(L(2)\) 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 \( 1 \)
5 \( 1 + (1.90 - 4.62i)T \)
good7 \( 1 - 0.764iT - 49T^{2} \)
11 \( 1 + 8.06iT - 121T^{2} \)
13 \( 1 + 2.16iT - 169T^{2} \)
17 \( 1 + 24.9T + 289T^{2} \)
19 \( 1 - 20.7T + 361T^{2} \)
23 \( 1 - 16.8T + 529T^{2} \)
29 \( 1 + 11.7iT - 841T^{2} \)
31 \( 1 - 0.669T + 961T^{2} \)
37 \( 1 - 48.2iT - 1.36e3T^{2} \)
41 \( 1 + 62.5iT - 1.68e3T^{2} \)
43 \( 1 + 71.3iT - 1.84e3T^{2} \)
47 \( 1 - 20.2T + 2.20e3T^{2} \)
53 \( 1 + 82.8T + 2.80e3T^{2} \)
59 \( 1 - 5.39iT - 3.48e3T^{2} \)
61 \( 1 - 83.2T + 3.72e3T^{2} \)
67 \( 1 + 10.6iT - 4.48e3T^{2} \)
71 \( 1 - 87.9iT - 5.04e3T^{2} \)
73 \( 1 + 15.5iT - 5.32e3T^{2} \)
79 \( 1 - 33.7T + 6.24e3T^{2} \)
83 \( 1 - 55.7T + 6.88e3T^{2} \)
89 \( 1 + 22.3iT - 7.92e3T^{2} \)
97 \( 1 + 68.9iT - 9.40e3T^{2} \)
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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

−9.046197996554900024164846145894, −8.423788221821474476060428238966, −7.42733731803334626772613338331, −6.84428201035480362194176689137, −6.00138764482124780778651509967, −5.06836244435034394452256969501, −3.94023663943922022696603101034, −3.13269195919750757470192471917, −2.20610340794361409810169784686, −0.54380002321230363584664257666, 0.874502141253319876888809222224, 2.03464772638181315690901327153, 3.32855271900513297555256361967, 4.48098427950758860365174352157, 4.86530892304555534002856833970, 5.97770099669830092459449268079, 7.00156731787976703799409371713, 7.64535841365609246717856132670, 8.538908402213741814554264943607, 9.277979564826777646758751063623

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