Properties

Label 2-1560-5.4-c1-0-25
Degree $2$
Conductor $1560$
Sign $0.987 + 0.158i$
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  + i·3-s + (−0.353 + 2.20i)5-s − 3.09i·7-s − 9-s + 5.51·11-s i·13-s + (−2.20 − 0.353i)15-s − 6.21i·17-s + 3.09·21-s − 4.21i·23-s + (−4.74 − 1.56i)25-s i·27-s + 1.70·29-s + 5.51i·33-s + (6.83 + 1.09i)35-s + ⋯
L(s)  = 1  + 0.577i·3-s + (−0.158 + 0.987i)5-s − 1.16i·7-s − 0.333·9-s + 1.66·11-s − 0.277i·13-s + (−0.570 − 0.0913i)15-s − 1.50i·17-s + 0.675·21-s − 0.879i·23-s + (−0.949 − 0.312i)25-s − 0.192i·27-s + 0.317·29-s + 0.959i·33-s + (1.15 + 0.184i)35-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1560 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.987 + 0.158i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1560 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.987 + 0.158i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1560\)    =    \(2^{3} \cdot 3 \cdot 5 \cdot 13\)
Sign: $0.987 + 0.158i$
Analytic conductor: \(12.4566\)
Root analytic conductor: \(3.52939\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1560} (1249, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1560,\ (\ :1/2),\ 0.987 + 0.158i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.701894338\)
\(L(\frac12)\) \(\approx\) \(1.701894338\)
\(L(\frac{3}{2})\) 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 \( 1 + (0.353 - 2.20i)T \)
13 \( 1 + iT \)
good7 \( 1 + 3.09iT - 7T^{2} \)
11 \( 1 - 5.51T + 11T^{2} \)
17 \( 1 + 6.21iT - 17T^{2} \)
19 \( 1 + 19T^{2} \)
23 \( 1 + 4.21iT - 23T^{2} \)
29 \( 1 - 1.70T + 29T^{2} \)
31 \( 1 + 31T^{2} \)
37 \( 1 + 4.02iT - 37T^{2} \)
41 \( 1 - 0.198T + 41T^{2} \)
43 \( 1 - 5.70iT - 43T^{2} \)
47 \( 1 + 6.41iT - 47T^{2} \)
53 \( 1 + 4.02iT - 53T^{2} \)
59 \( 1 - 7.53T + 59T^{2} \)
61 \( 1 - 11.9T + 61T^{2} \)
67 \( 1 - 4.83iT - 67T^{2} \)
71 \( 1 - 7.98T + 71T^{2} \)
73 \( 1 + 9.31iT - 73T^{2} \)
79 \( 1 + 8.51T + 79T^{2} \)
83 \( 1 - 14.7iT - 83T^{2} \)
89 \( 1 - 9.40T + 89T^{2} \)
97 \( 1 - 14.3iT - 97T^{2} \)
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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

−9.625854010483260752631334663528, −8.729258311305567762786716661888, −7.68251383408134281119923043187, −6.87335999721942848984820318009, −6.47791381763125457734911678478, −5.16445476879973813592626677767, −4.10802809226224230498329811639, −3.63020131342820948667985916823, −2.51223279918598086314823092119, −0.77535726508738285965449334217, 1.24421097952707926905615816444, 2.02844075721500231574512186600, 3.53822848536653462182597746547, 4.39303345259182666235874214740, 5.55465025012056404273194880529, 6.10773160957121925130823421425, 6.97271836101376287501848565498, 8.099482553472625764396436084101, 8.708296404523131894209151111794, 9.157454578737704674146628985372

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