Properties

Label 2-1560-13.12-c1-0-7
Degree $2$
Conductor $1560$
Sign $-0.155 - 0.987i$
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 + 3.56i·7-s + 9-s + 1.56i·11-s + (−0.561 − 3.56i)13-s + i·15-s + 0.438·17-s + 5.12i·19-s + 3.56i·21-s + 1.56·23-s − 25-s + 27-s − 2·29-s + 2i·31-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447i·5-s + 1.34i·7-s + 0.333·9-s + 0.470i·11-s + (−0.155 − 0.987i)13-s + 0.258i·15-s + 0.106·17-s + 1.17i·19-s + 0.777i·21-s + 0.325·23-s − 0.200·25-s + 0.192·27-s − 0.371·29-s + 0.359i·31-s + ⋯

Functional equation

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

Invariants

Degree: \(2\)
Conductor: \(1560\)    =    \(2^{3} \cdot 3 \cdot 5 \cdot 13\)
Sign: $-0.155 - 0.987i$
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: \((2,\ 1560,\ (\ :1/2),\ -0.155 - 0.987i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.823537717\)
\(L(\frac12)\) \(\approx\) \(1.823537717\)
\(L(\frac{3}{2})\) 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 \( 1 + (0.561 + 3.56i)T \)
good7 \( 1 - 3.56iT - 7T^{2} \)
11 \( 1 - 1.56iT - 11T^{2} \)
17 \( 1 - 0.438T + 17T^{2} \)
19 \( 1 - 5.12iT - 19T^{2} \)
23 \( 1 - 1.56T + 23T^{2} \)
29 \( 1 + 2T + 29T^{2} \)
31 \( 1 - 2iT - 31T^{2} \)
37 \( 1 - 5.56iT - 37T^{2} \)
41 \( 1 - 6.68iT - 41T^{2} \)
43 \( 1 - 0.876T + 43T^{2} \)
47 \( 1 - 47T^{2} \)
53 \( 1 + 6.68T + 53T^{2} \)
59 \( 1 + 6.24iT - 59T^{2} \)
61 \( 1 + 6.68T + 61T^{2} \)
67 \( 1 - 15.3iT - 67T^{2} \)
71 \( 1 + 9.56iT - 71T^{2} \)
73 \( 1 - 0.876iT - 73T^{2} \)
79 \( 1 + 8.68T + 79T^{2} \)
83 \( 1 - 3.12iT - 83T^{2} \)
89 \( 1 - 0.438iT - 89T^{2} \)
97 \( 1 - 1.56iT - 97T^{2} \)
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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

−9.699929991186183363254118588917, −8.788613863846994526816513929325, −8.114776353564899500432182220599, −7.43621512714403794527015445611, −6.34472503543136095429871376847, −5.62568690436271476179538796313, −4.70572209915381456133256806865, −3.39819438303702252786460812972, −2.73534645922557208625237661024, −1.68717261065427266987828045144, 0.65794469129480809042476282555, 1.94587392207633936538331016138, 3.25388519388819585016307901428, 4.16286404355042877168338383969, 4.78368970292020282905180182126, 6.03098227173383583197813891799, 7.12151633480150168634057872694, 7.44477906900694500475519734528, 8.550089373838776699232118267137, 9.161924582195718882628434774511

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