Properties

Label 2-688-43.9-c1-0-19
Degree $2$
Conductor $688$
Sign $-0.703 - 0.710i$
Analytic cond. $5.49370$
Root an. cond. $2.34386$
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  + (−2.66 − 0.402i)3-s + (−2.09 − 1.43i)5-s + (1.09 − 1.89i)7-s + (4.09 + 1.26i)9-s + (−0.694 − 3.04i)11-s + (0.257 − 3.43i)13-s + (5.02 + 4.66i)15-s + (−1.92 + 1.31i)17-s + (3.23 − 0.996i)19-s + (−3.68 + 4.61i)21-s + (−4.82 + 4.47i)23-s + (0.529 + 1.34i)25-s + (−3.13 − 1.51i)27-s + (−5.34 + 0.806i)29-s + (−0.778 + 1.98i)31-s + ⋯
L(s)  = 1  + (−1.54 − 0.232i)3-s + (−0.938 − 0.639i)5-s + (0.413 − 0.715i)7-s + (1.36 + 0.421i)9-s + (−0.209 − 0.917i)11-s + (0.0713 − 0.951i)13-s + (1.29 + 1.20i)15-s + (−0.467 + 0.318i)17-s + (0.741 − 0.228i)19-s + (−0.803 + 1.00i)21-s + (−1.00 + 0.933i)23-s + (0.105 + 0.269i)25-s + (−0.603 − 0.290i)27-s + (−0.993 + 0.149i)29-s + (−0.139 + 0.356i)31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 688 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.703 - 0.710i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 688 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.703 - 0.710i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(688\)    =    \(2^{4} \cdot 43\)
Sign: $-0.703 - 0.710i$
Analytic conductor: \(5.49370\)
Root analytic conductor: \(2.34386\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{688} (353, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 688,\ (\ :1/2),\ -0.703 - 0.710i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.0539343 + 0.129255i\)
\(L(\frac12)\) \(\approx\) \(0.0539343 + 0.129255i\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
43 \( 1 + (6.03 - 2.55i)T \)
good3 \( 1 + (2.66 + 0.402i)T + (2.86 + 0.884i)T^{2} \)
5 \( 1 + (2.09 + 1.43i)T + (1.82 + 4.65i)T^{2} \)
7 \( 1 + (-1.09 + 1.89i)T + (-3.5 - 6.06i)T^{2} \)
11 \( 1 + (0.694 + 3.04i)T + (-9.91 + 4.77i)T^{2} \)
13 \( 1 + (-0.257 + 3.43i)T + (-12.8 - 1.93i)T^{2} \)
17 \( 1 + (1.92 - 1.31i)T + (6.21 - 15.8i)T^{2} \)
19 \( 1 + (-3.23 + 0.996i)T + (15.6 - 10.7i)T^{2} \)
23 \( 1 + (4.82 - 4.47i)T + (1.71 - 22.9i)T^{2} \)
29 \( 1 + (5.34 - 0.806i)T + (27.7 - 8.54i)T^{2} \)
31 \( 1 + (0.778 - 1.98i)T + (-22.7 - 21.0i)T^{2} \)
37 \( 1 + (1.73 + 3.01i)T + (-18.5 + 32.0i)T^{2} \)
41 \( 1 + (-1.33 - 1.66i)T + (-9.12 + 39.9i)T^{2} \)
47 \( 1 + (0.260 - 1.14i)T + (-42.3 - 20.3i)T^{2} \)
53 \( 1 + (-0.777 - 10.3i)T + (-52.4 + 7.89i)T^{2} \)
59 \( 1 + (-5.53 - 2.66i)T + (36.7 + 46.1i)T^{2} \)
61 \( 1 + (-0.913 - 2.32i)T + (-44.7 + 41.4i)T^{2} \)
67 \( 1 + (9.87 - 3.04i)T + (55.3 - 37.7i)T^{2} \)
71 \( 1 + (8.30 + 7.70i)T + (5.30 + 70.8i)T^{2} \)
73 \( 1 + (-0.624 + 8.33i)T + (-72.1 - 10.8i)T^{2} \)
79 \( 1 + (-4.90 + 8.50i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 + (-2.83 - 0.427i)T + (79.3 + 24.4i)T^{2} \)
89 \( 1 + (-14.8 - 2.23i)T + (85.0 + 26.2i)T^{2} \)
97 \( 1 + (-0.939 - 4.11i)T + (-87.3 + 42.0i)T^{2} \)
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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

−10.40086732070854297220721488470, −9.013102658814905097243305398762, −7.87178721391184339574705850723, −7.45086125952658243605268433091, −6.14099582952456731704967866024, −5.43385837687216147915955921495, −4.55309567466421633207071232567, −3.53278181521140022369620274660, −1.18745355310808643147228748627, −0.10321322130043380316505516252, 2.07943461660372009211299657696, 3.84242647838753819309402373872, 4.73308689515081347745221306229, 5.56364973607961912705742230750, 6.62513758779362485951012792631, 7.24411423129636244090520136417, 8.317314438396662877841736607065, 9.542618975553228423979327565709, 10.36057518094168824814618410802, 11.23296648695432349844701507453

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