Properties

Label 2-68-68.31-c1-0-4
Degree $2$
Conductor $68$
Sign $0.717 - 0.696i$
Analytic cond. $0.542982$
Root an. cond. $0.736873$
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  + (1.07 + 0.915i)2-s + (−0.935 − 0.186i)3-s + (0.323 + 1.97i)4-s + (0.763 − 0.510i)5-s + (−0.837 − 1.05i)6-s + (0.225 − 0.337i)7-s + (−1.45 + 2.42i)8-s + (−1.93 − 0.799i)9-s + (1.28 + 0.149i)10-s + (−0.892 − 4.48i)11-s + (0.0650 − 1.90i)12-s + (−1.21 − 1.21i)13-s + (0.552 − 0.157i)14-s + (−0.809 + 0.335i)15-s + (−3.79 + 1.27i)16-s + (2.80 + 3.02i)17-s + ⋯
L(s)  = 1  + (0.762 + 0.647i)2-s + (−0.540 − 0.107i)3-s + (0.161 + 0.986i)4-s + (0.341 − 0.228i)5-s + (−0.342 − 0.431i)6-s + (0.0853 − 0.127i)7-s + (−0.515 + 0.856i)8-s + (−0.643 − 0.266i)9-s + (0.407 + 0.0472i)10-s + (−0.269 − 1.35i)11-s + (0.0187 − 0.550i)12-s + (−0.337 − 0.337i)13-s + (0.147 − 0.0420i)14-s + (−0.208 + 0.0865i)15-s + (−0.947 + 0.318i)16-s + (0.679 + 0.733i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 68 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.717 - 0.696i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 68 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.717 - 0.696i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(68\)    =    \(2^{2} \cdot 17\)
Sign: $0.717 - 0.696i$
Analytic conductor: \(0.542982\)
Root analytic conductor: \(0.736873\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{68} (31, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 68,\ (\ :1/2),\ 0.717 - 0.696i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.03684 + 0.420260i\)
\(L(\frac12)\) \(\approx\) \(1.03684 + 0.420260i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (-1.07 - 0.915i)T \)
17 \( 1 + (-2.80 - 3.02i)T \)
good3 \( 1 + (0.935 + 0.186i)T + (2.77 + 1.14i)T^{2} \)
5 \( 1 + (-0.763 + 0.510i)T + (1.91 - 4.61i)T^{2} \)
7 \( 1 + (-0.225 + 0.337i)T + (-2.67 - 6.46i)T^{2} \)
11 \( 1 + (0.892 + 4.48i)T + (-10.1 + 4.20i)T^{2} \)
13 \( 1 + (1.21 + 1.21i)T + 13iT^{2} \)
19 \( 1 + (-1.29 - 3.11i)T + (-13.4 + 13.4i)T^{2} \)
23 \( 1 + (-1.22 + 0.243i)T + (21.2 - 8.80i)T^{2} \)
29 \( 1 + (3.14 + 4.71i)T + (-11.0 + 26.7i)T^{2} \)
31 \( 1 + (1.67 - 8.41i)T + (-28.6 - 11.8i)T^{2} \)
37 \( 1 + (-1.30 + 6.56i)T + (-34.1 - 14.1i)T^{2} \)
41 \( 1 + (-1.11 - 0.743i)T + (15.6 + 37.8i)T^{2} \)
43 \( 1 + (2.03 - 4.91i)T + (-30.4 - 30.4i)T^{2} \)
47 \( 1 + (-9.03 + 9.03i)T - 47iT^{2} \)
53 \( 1 + (-2.36 + 0.977i)T + (37.4 - 37.4i)T^{2} \)
59 \( 1 + (11.1 + 4.62i)T + (41.7 + 41.7i)T^{2} \)
61 \( 1 + (-2.41 + 3.61i)T + (-23.3 - 56.3i)T^{2} \)
67 \( 1 - 8.38T + 67T^{2} \)
71 \( 1 + (13.3 + 2.65i)T + (65.5 + 27.1i)T^{2} \)
73 \( 1 + (5.16 - 3.45i)T + (27.9 - 67.4i)T^{2} \)
79 \( 1 + (1.81 + 9.10i)T + (-72.9 + 30.2i)T^{2} \)
83 \( 1 + (-3.70 + 1.53i)T + (58.6 - 58.6i)T^{2} \)
89 \( 1 + (-6.88 + 6.88i)T - 89iT^{2} \)
97 \( 1 + (-4.91 - 7.35i)T + (-37.1 + 89.6i)T^{2} \)
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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

−14.76146978699801754587452241560, −13.91807446792801025681828547033, −12.84342181109101329451082238735, −11.84363863461642863626380881477, −10.74868023706115923592508180782, −8.876771961293412933223475018443, −7.69840398942336806533636702151, −6.04090121009085861616932792344, −5.41461184107572320938829218188, −3.40076588557386504019815978454, 2.51703631973420564195303060679, 4.65589810529638477591915639243, 5.71718135909961012645058548602, 7.20076641737298713286748032010, 9.386756800666021380051732922778, 10.36905536775962192322507665795, 11.50663328568640580837948975229, 12.28962696374896238876653336159, 13.53212283772859055003157255010, 14.50280550485413133429851315377

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