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Properties

Label 2-1568-7.2-c1-0-23
Degree $2$
Conductor $1568$
Sign $0.968 - 0.250i$
Analytic cond. $12.5205$
Root an. cond. $3.53843$
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  + (1 + 1.73i)3-s + (−0.499 + 0.866i)9-s + (−2 − 3.46i)11-s + 4·13-s + (−1 − 1.73i)17-s + (3 − 5.19i)19-s + (4 − 6.92i)23-s + (2.5 + 4.33i)25-s + 4.00·27-s + 2·29-s + (2 + 3.46i)31-s + (3.99 − 6.92i)33-s + (−5 + 8.66i)37-s + (4 + 6.92i)39-s + 10·41-s + ⋯
L(s)  = 1  + (0.577 + 0.999i)3-s + (−0.166 + 0.288i)9-s + (−0.603 − 1.04i)11-s + 1.10·13-s + (−0.242 − 0.420i)17-s + (0.688 − 1.19i)19-s + (0.834 − 1.44i)23-s + (0.5 + 0.866i)25-s + 0.769·27-s + 0.371·29-s + (0.359 + 0.622i)31-s + (0.696 − 1.20i)33-s + (−0.821 + 1.42i)37-s + (0.640 + 1.10i)39-s + 1.56·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1568 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.968 - 0.250i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1568 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.968 - 0.250i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1568\)    =    \(2^{5} \cdot 7^{2}\)
Sign: $0.968 - 0.250i$
Analytic conductor: \(12.5205\)
Root analytic conductor: \(3.53843\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{1568} (961, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 1568,\ (\ :1/2),\ 0.968 - 0.250i)\)

Particular Values

\(L(1)\) \(\approx\) \(2.196487341\)
\(L(\frac12)\) \(\approx\) \(2.196487341\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 \)
good3 \( 1 + (-1 - 1.73i)T + (-1.5 + 2.59i)T^{2} \)
5 \( 1 + (-2.5 - 4.33i)T^{2} \)
11 \( 1 + (2 + 3.46i)T + (-5.5 + 9.52i)T^{2} \)
13 \( 1 - 4T + 13T^{2} \)
17 \( 1 + (1 + 1.73i)T + (-8.5 + 14.7i)T^{2} \)
19 \( 1 + (-3 + 5.19i)T + (-9.5 - 16.4i)T^{2} \)
23 \( 1 + (-4 + 6.92i)T + (-11.5 - 19.9i)T^{2} \)
29 \( 1 - 2T + 29T^{2} \)
31 \( 1 + (-2 - 3.46i)T + (-15.5 + 26.8i)T^{2} \)
37 \( 1 + (5 - 8.66i)T + (-18.5 - 32.0i)T^{2} \)
41 \( 1 - 10T + 41T^{2} \)
43 \( 1 + 4T + 43T^{2} \)
47 \( 1 + (2 - 3.46i)T + (-23.5 - 40.7i)T^{2} \)
53 \( 1 + (-1 - 1.73i)T + (-26.5 + 45.8i)T^{2} \)
59 \( 1 + (5 + 8.66i)T + (-29.5 + 51.0i)T^{2} \)
61 \( 1 + (4 - 6.92i)T + (-30.5 - 52.8i)T^{2} \)
67 \( 1 + (4 + 6.92i)T + (-33.5 + 58.0i)T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 + (3 + 5.19i)T + (-36.5 + 63.2i)T^{2} \)
79 \( 1 + (8 - 13.8i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 - 2T + 83T^{2} \)
89 \( 1 + (-9 + 15.5i)T + (-44.5 - 77.0i)T^{2} \)
97 \( 1 - 2T + 97T^{2} \)
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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

−9.246205449077501590188122054628, −8.819973047647685276071369880335, −8.209874330285570595765247364988, −7.01645411014812653776639112092, −6.22241341672656942791455858847, −5.06795835343994657195890386585, −4.49721812670018748879816353296, −3.17651384761456609021637342785, −2.96262410821103398149558108502, −0.956967959102428931238239117976, 1.25896718840293221643814796880, 2.12008480082472896061689294030, 3.20726947103440371066715122845, 4.26128872814453802511607629672, 5.40926782008359877060516321657, 6.27309481496124583338405877261, 7.24464315879427908437754913567, 7.70303083894424157131300750651, 8.445606938009543694679778250481, 9.247356259630485687235143637566

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