Properties

Label 2-1560-8.5-c1-0-71
Degree $2$
Conductor $1560$
Sign $0.707 + 0.707i$
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  + (−0.366 + 1.36i)2-s + i·3-s + (−1.73 − i)4-s i·5-s + (−1.36 − 0.366i)6-s + 1.26·7-s + (2 − 1.99i)8-s − 9-s + (1.36 + 0.366i)10-s − 1.26i·11-s + (1 − 1.73i)12-s i·13-s + (−0.464 + 1.73i)14-s + 15-s + (1.99 + 3.46i)16-s − 4·17-s + ⋯
L(s)  = 1  + (−0.258 + 0.965i)2-s + 0.577i·3-s + (−0.866 − 0.5i)4-s − 0.447i·5-s + (−0.557 − 0.149i)6-s + 0.479·7-s + (0.707 − 0.707i)8-s − 0.333·9-s + (0.431 + 0.115i)10-s − 0.382i·11-s + (0.288 − 0.499i)12-s − 0.277i·13-s + (−0.124 + 0.462i)14-s + 0.258·15-s + (0.499 + 0.866i)16-s − 0.970·17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1560 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.707 + 0.707i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1560 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.707 + 0.707i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1560\)    =    \(2^{3} \cdot 3 \cdot 5 \cdot 13\)
Sign: $0.707 + 0.707i$
Analytic conductor: \(12.4566\)
Root analytic conductor: \(3.52939\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1560} (781, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1560,\ (\ :1/2),\ 0.707 + 0.707i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.7064844796\)
\(L(\frac12)\) \(\approx\) \(0.7064844796\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (0.366 - 1.36i)T \)
3 \( 1 - iT \)
5 \( 1 + iT \)
13 \( 1 + iT \)
good7 \( 1 - 1.26T + 7T^{2} \)
11 \( 1 + 1.26iT - 11T^{2} \)
17 \( 1 + 4T + 17T^{2} \)
19 \( 1 - 2.73iT - 19T^{2} \)
23 \( 1 + 2T + 23T^{2} \)
29 \( 1 + 8.92iT - 29T^{2} \)
31 \( 1 + 10.1T + 31T^{2} \)
37 \( 1 + 7.46iT - 37T^{2} \)
41 \( 1 - 8.92T + 41T^{2} \)
43 \( 1 + 5.46iT - 43T^{2} \)
47 \( 1 + 5.26T + 47T^{2} \)
53 \( 1 + 8.39iT - 53T^{2} \)
59 \( 1 + 9.66iT - 59T^{2} \)
61 \( 1 - 10.9iT - 61T^{2} \)
67 \( 1 - 1.80iT - 67T^{2} \)
71 \( 1 - 16.7T + 71T^{2} \)
73 \( 1 + 11.8T + 73T^{2} \)
79 \( 1 - 10.5T + 79T^{2} \)
83 \( 1 - 8.73iT - 83T^{2} \)
89 \( 1 + 12.9T + 89T^{2} \)
97 \( 1 + 7.46T + 97T^{2} \)
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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

−9.289059376950692355812803433991, −8.405861184473153393896363682852, −7.954296134868222799170746826946, −6.97066546018841261984810959228, −5.88629558276592332916677587575, −5.41391005453253864284616807636, −4.38831207021029009336823300371, −3.77060443452756139393131604342, −1.98705410388537603673679862340, −0.30578429124910456884843301090, 1.42999794106615314411448265830, 2.29861345109544461781731957654, 3.28479381709122669931245149878, 4.39960246930139254560480992651, 5.19790737021248705523940474248, 6.46385023775830908962635605748, 7.29346529968924520380274813452, 7.999426066761603616713139848055, 8.932184486623529107288205699002, 9.440992468666269743124298656926

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