Properties

Label 2-1560-13.12-c1-0-17
Degree $2$
Conductor $1560$
Sign $0.987 + 0.155i$
Analytic cond. $12.4566$
Root an. cond. $3.52939$
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 + i·5-s − 0.561i·7-s + 9-s − 2.56i·11-s + (3.56 + 0.561i)13-s + i·15-s + 4.56·17-s − 3.12i·19-s − 0.561i·21-s − 2.56·23-s − 25-s + 27-s − 2·29-s + 2i·31-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447i·5-s − 0.212i·7-s + 0.333·9-s − 0.772i·11-s + (0.987 + 0.155i)13-s + 0.258i·15-s + 1.10·17-s − 0.716i·19-s − 0.122i·21-s − 0.534·23-s − 0.200·25-s + 0.192·27-s − 0.371·29-s + 0.359i·31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1560 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.987 + 0.155i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1560 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.987 + 0.155i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1560\)    =    \(2^{3} \cdot 3 \cdot 5 \cdot 13\)
Sign: $0.987 + 0.155i$
Analytic conductor: \(12.4566\)
Root analytic conductor: \(3.52939\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1560} (961, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1560,\ (\ :1/2),\ 0.987 + 0.155i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.260354762\)
\(L(\frac12)\) \(\approx\) \(2.260354762\)
\(L(\frac{3}{2})\) 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 \( 1 - iT \)
13 \( 1 + (-3.56 - 0.561i)T \)
good7 \( 1 + 0.561iT - 7T^{2} \)
11 \( 1 + 2.56iT - 11T^{2} \)
17 \( 1 - 4.56T + 17T^{2} \)
19 \( 1 + 3.12iT - 19T^{2} \)
23 \( 1 + 2.56T + 23T^{2} \)
29 \( 1 + 2T + 29T^{2} \)
31 \( 1 - 2iT - 31T^{2} \)
37 \( 1 - 1.43iT - 37T^{2} \)
41 \( 1 + 5.68iT - 41T^{2} \)
43 \( 1 - 9.12T + 43T^{2} \)
47 \( 1 - 47T^{2} \)
53 \( 1 - 5.68T + 53T^{2} \)
59 \( 1 - 10.2iT - 59T^{2} \)
61 \( 1 - 5.68T + 61T^{2} \)
67 \( 1 + 9.36iT - 67T^{2} \)
71 \( 1 + 5.43iT - 71T^{2} \)
73 \( 1 - 9.12iT - 73T^{2} \)
79 \( 1 - 3.68T + 79T^{2} \)
83 \( 1 + 5.12iT - 83T^{2} \)
89 \( 1 - 4.56iT - 89T^{2} \)
97 \( 1 + 2.56iT - 97T^{2} \)
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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

−9.268922052228342259344893963105, −8.667302676797166024800687122601, −7.83527024934782872373596927476, −7.12899607361731709700934418837, −6.17514903232155148876978524905, −5.42388169299074363350989532818, −4.06618285793661004751734627016, −3.43460018745110648319519130188, −2.44039755837552907615156142815, −1.03117964914297343101637268739, 1.20585832586164213704937753322, 2.30508140081603299010927607797, 3.54739189761823707952537163069, 4.24191734411024862170000301152, 5.40906282116556334276272930331, 6.09563594177782928929689385451, 7.25807193045122496517272603936, 7.970446879081797592781873438295, 8.587605900111751774025351639427, 9.488829431378352702321983265395

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