Properties

Label 2-1638-13.12-c1-0-30
Degree $2$
Conductor $1638$
Sign $-0.987 + 0.155i$
Analytic cond. $13.0794$
Root an. cond. $3.61655$
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·2-s − 4-s − 3.56i·5-s i·7-s + i·8-s − 3.56·10-s − 5.56i·11-s + (3.56 − 0.561i)13-s − 14-s + 16-s + 6.68·17-s − 1.56i·19-s + 3.56i·20-s − 5.56·22-s + 6.68·23-s + ⋯
L(s)  = 1  − 0.707i·2-s − 0.5·4-s − 1.59i·5-s − 0.377i·7-s + 0.353i·8-s − 1.12·10-s − 1.67i·11-s + (0.987 − 0.155i)13-s − 0.267·14-s + 0.250·16-s + 1.62·17-s − 0.358i·19-s + 0.796i·20-s − 1.18·22-s + 1.39·23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1638 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.987 + 0.155i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1638 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.987 + 0.155i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1638\)    =    \(2 \cdot 3^{2} \cdot 7 \cdot 13\)
Sign: $-0.987 + 0.155i$
Analytic conductor: \(13.0794\)
Root analytic conductor: \(3.61655\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1638} (883, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1638,\ (\ :1/2),\ -0.987 + 0.155i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.712294717\)
\(L(\frac12)\) \(\approx\) \(1.712294717\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + iT \)
3 \( 1 \)
7 \( 1 + iT \)
13 \( 1 + (-3.56 + 0.561i)T \)
good5 \( 1 + 3.56iT - 5T^{2} \)
11 \( 1 + 5.56iT - 11T^{2} \)
17 \( 1 - 6.68T + 17T^{2} \)
19 \( 1 + 1.56iT - 19T^{2} \)
23 \( 1 - 6.68T + 23T^{2} \)
29 \( 1 + 1.56T + 29T^{2} \)
31 \( 1 + 6.24iT - 31T^{2} \)
37 \( 1 - 10.6iT - 37T^{2} \)
41 \( 1 + 4iT - 41T^{2} \)
43 \( 1 + 6.43T + 43T^{2} \)
47 \( 1 - 10.2iT - 47T^{2} \)
53 \( 1 + 4.87T + 53T^{2} \)
59 \( 1 + 4.24iT - 59T^{2} \)
61 \( 1 + 1.56T + 61T^{2} \)
67 \( 1 + 1.12iT - 67T^{2} \)
71 \( 1 + 9.36iT - 71T^{2} \)
73 \( 1 - 11.5iT - 73T^{2} \)
79 \( 1 - 16T + 79T^{2} \)
83 \( 1 - 2iT - 83T^{2} \)
89 \( 1 - 8iT - 89T^{2} \)
97 \( 1 - 10iT - 97T^{2} \)
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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

−9.087215346202593666223669527962, −8.266109254897207544455661951689, −7.928263629217223323925607049098, −6.34096176114589322306752118090, −5.48794289661882500812260238102, −4.87276974728336136352407586228, −3.75222765895104211986372594665, −3.09636240823409532044314619111, −1.26616881102446534843715848896, −0.795665259039742726776993912761, 1.71621497689666381853842177433, 3.03367840443466072854087526775, 3.76967506519886699183327857410, 5.01724340342661590528111489322, 5.84198170489369896371537570362, 6.75897295586517752051462585975, 7.19361048267812400131178866690, 7.903424079163973091979333935954, 8.950358820177132473187542115741, 9.796957885979981185360019714641

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