Properties

Label 2-68-68.31-c1-0-2
Degree $2$
Conductor $68$
Sign $0.752 - 0.659i$
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  + (−1.01 + 0.982i)2-s + (1.51 + 0.301i)3-s + (0.0705 − 1.99i)4-s + (1.90 − 1.27i)5-s + (−1.83 + 1.18i)6-s + (−2.53 + 3.79i)7-s + (1.89 + 2.10i)8-s + (−0.571 − 0.236i)9-s + (−0.689 + 3.17i)10-s + (−0.737 − 3.70i)11-s + (0.708 − 3.00i)12-s + (1.06 + 1.06i)13-s + (−1.14 − 6.34i)14-s + (3.27 − 1.35i)15-s + (−3.99 − 0.282i)16-s + (−3.21 − 2.58i)17-s + ⋯
L(s)  = 1  + (−0.719 + 0.694i)2-s + (0.873 + 0.173i)3-s + (0.0352 − 0.999i)4-s + (0.853 − 0.570i)5-s + (−0.749 + 0.481i)6-s + (−0.957 + 1.43i)7-s + (0.668 + 0.743i)8-s + (−0.190 − 0.0789i)9-s + (−0.218 + 1.00i)10-s + (−0.222 − 1.11i)11-s + (0.204 − 0.867i)12-s + (0.296 + 0.296i)13-s + (−0.306 − 1.69i)14-s + (0.845 − 0.350i)15-s + (−0.997 − 0.0705i)16-s + (−0.779 − 0.625i)17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 68 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.752 - 0.659i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 68 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.752 - 0.659i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(68\)    =    \(2^{2} \cdot 17\)
Sign: $0.752 - 0.659i$
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: \((2,\ 68,\ (\ :1/2),\ 0.752 - 0.659i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.783262 + 0.294622i\)
\(L(\frac12)\) \(\approx\) \(0.783262 + 0.294622i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + (1.01 - 0.982i)T \)
17 \( 1 + (3.21 + 2.58i)T \)
good3 \( 1 + (-1.51 - 0.301i)T + (2.77 + 1.14i)T^{2} \)
5 \( 1 + (-1.90 + 1.27i)T + (1.91 - 4.61i)T^{2} \)
7 \( 1 + (2.53 - 3.79i)T + (-2.67 - 6.46i)T^{2} \)
11 \( 1 + (0.737 + 3.70i)T + (-10.1 + 4.20i)T^{2} \)
13 \( 1 + (-1.06 - 1.06i)T + 13iT^{2} \)
19 \( 1 + (0.308 + 0.745i)T + (-13.4 + 13.4i)T^{2} \)
23 \( 1 + (-1.55 + 0.310i)T + (21.2 - 8.80i)T^{2} \)
29 \( 1 + (-1.05 - 1.58i)T + (-11.0 + 26.7i)T^{2} \)
31 \( 1 + (-0.416 + 2.09i)T + (-28.6 - 11.8i)T^{2} \)
37 \( 1 + (1.44 - 7.27i)T + (-34.1 - 14.1i)T^{2} \)
41 \( 1 + (-6.06 - 4.05i)T + (15.6 + 37.8i)T^{2} \)
43 \( 1 + (0.146 - 0.352i)T + (-30.4 - 30.4i)T^{2} \)
47 \( 1 + (-0.465 + 0.465i)T - 47iT^{2} \)
53 \( 1 + (-2.45 + 1.01i)T + (37.4 - 37.4i)T^{2} \)
59 \( 1 + (-5.44 - 2.25i)T + (41.7 + 41.7i)T^{2} \)
61 \( 1 + (3.92 - 5.87i)T + (-23.3 - 56.3i)T^{2} \)
67 \( 1 - 16.2T + 67T^{2} \)
71 \( 1 + (7.36 + 1.46i)T + (65.5 + 27.1i)T^{2} \)
73 \( 1 + (-5.84 + 3.90i)T + (27.9 - 67.4i)T^{2} \)
79 \( 1 + (-2.33 - 11.7i)T + (-72.9 + 30.2i)T^{2} \)
83 \( 1 + (6.25 - 2.58i)T + (58.6 - 58.6i)T^{2} \)
89 \( 1 + (-5.52 + 5.52i)T - 89iT^{2} \)
97 \( 1 + (-3.39 - 5.07i)T + (-37.1 + 89.6i)T^{2} \)
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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

−15.15602755843806298462023623060, −13.92996871455399447788309353191, −13.15784017080941074260902739306, −11.42147554574582289046471744816, −9.693593848062389524257271820775, −9.015712601775120761678046807818, −8.457059779558212008793689279349, −6.39435195782667405972823200368, −5.47175352167542833464378305312, −2.64062117840057742364345377636, 2.33133479002557189803400117521, 3.79822225264583379940443334894, 6.69400101880404687249979070462, 7.71789660855638907039435682246, 9.172648371318575948651031395260, 10.14012947285744422669486568101, 10.81365029477986660760911497812, 12.74826016291041813357225824269, 13.42269788038736604425815219282, 14.33031182266599449096949098373

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