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Properties

Label 2-688-43.36-c1-0-6
Degree $2$
Conductor $688$
Sign $0.819 - 0.572i$
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  + (−0.190 − 0.330i)3-s + (1.61 + 2.80i)5-s + (0.118 − 0.204i)7-s + (1.42 − 2.47i)9-s + 1.38·11-s + (−1.80 + 3.13i)13-s + (0.618 − 1.07i)15-s + (2.54 − 4.40i)17-s + (1.61 + 2.80i)19-s − 0.0901·21-s + (3.30 + 5.73i)23-s + (−2.73 + 4.73i)25-s − 2.23·27-s + (−1.5 + 2.59i)29-s + (−0.263 − 0.457i)33-s + ⋯
L(s)  = 1  + (−0.110 − 0.190i)3-s + (0.723 + 1.25i)5-s + (0.0446 − 0.0772i)7-s + (0.475 − 0.823i)9-s + 0.416·11-s + (−0.501 + 0.869i)13-s + (0.159 − 0.276i)15-s + (0.617 − 1.06i)17-s + (0.371 + 0.642i)19-s − 0.0196·21-s + (0.689 + 1.19i)23-s + (−0.547 + 0.947i)25-s − 0.430·27-s + (−0.278 + 0.482i)29-s + (−0.0459 − 0.0795i)33-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 688 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.819 - 0.572i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 688 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (0.819 - 0.572i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(688\)    =    \(2^{4} \cdot 43\)
Sign: $0.819 - 0.572i$
Analytic conductor: \(5.49370\)
Root analytic conductor: \(2.34386\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{688} (337, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 688,\ (\ :1/2),\ 0.819 - 0.572i)\)

Particular Values

\(L(1)\) \(\approx\) \(1.65531 + 0.520974i\)
\(L(\frac12)\) \(\approx\) \(1.65531 + 0.520974i\)
\(L(\frac{3}{2})\) 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 \( 1 + (-6.5 - 0.866i)T \)
good3 \( 1 + (0.190 + 0.330i)T + (-1.5 + 2.59i)T^{2} \)
5 \( 1 + (-1.61 - 2.80i)T + (-2.5 + 4.33i)T^{2} \)
7 \( 1 + (-0.118 + 0.204i)T + (-3.5 - 6.06i)T^{2} \)
11 \( 1 - 1.38T + 11T^{2} \)
13 \( 1 + (1.80 - 3.13i)T + (-6.5 - 11.2i)T^{2} \)
17 \( 1 + (-2.54 + 4.40i)T + (-8.5 - 14.7i)T^{2} \)
19 \( 1 + (-1.61 - 2.80i)T + (-9.5 + 16.4i)T^{2} \)
23 \( 1 + (-3.30 - 5.73i)T + (-11.5 + 19.9i)T^{2} \)
29 \( 1 + (1.5 - 2.59i)T + (-14.5 - 25.1i)T^{2} \)
31 \( 1 + (-15.5 + 26.8i)T^{2} \)
37 \( 1 + (0.927 + 1.60i)T + (-18.5 + 32.0i)T^{2} \)
41 \( 1 - 0.527T + 41T^{2} \)
47 \( 1 + 7.85T + 47T^{2} \)
53 \( 1 + (-1.80 - 3.13i)T + (-26.5 + 45.8i)T^{2} \)
59 \( 1 - 6.09T + 59T^{2} \)
61 \( 1 + (-1.92 + 3.33i)T + (-30.5 - 52.8i)T^{2} \)
67 \( 1 + (-1.42 - 2.47i)T + (-33.5 + 58.0i)T^{2} \)
71 \( 1 + (-6.89 + 11.9i)T + (-35.5 - 61.4i)T^{2} \)
73 \( 1 + (-2.42 + 4.20i)T + (-36.5 - 63.2i)T^{2} \)
79 \( 1 + (1.80 - 3.13i)T + (-39.5 - 68.4i)T^{2} \)
83 \( 1 + (6.51 + 11.2i)T + (-41.5 + 71.8i)T^{2} \)
89 \( 1 + (2.42 + 4.20i)T + (-44.5 + 77.0i)T^{2} \)
97 \( 1 + 4.76T + 97T^{2} \)
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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

−10.49513866887602080179352574302, −9.539874404944044806954878278269, −9.312272202013618493701678330298, −7.55878603661399128159210029820, −7.01813724930605880428625763430, −6.28381117976259863957200415080, −5.28389221529602260715502623056, −3.84481178045795871696941462992, −2.86527865341171090174916327002, −1.49855150716976584606688419146, 1.10196448655760376159716388555, 2.40833198999483307811145547683, 4.07103866708086323633214627811, 5.08136394797352630081162618916, 5.56505670930235103691182477619, 6.82682395476057793983019899233, 8.004956536925701137209806495492, 8.643743749014261947212206554463, 9.639809406109778922914826254467, 10.21197798556443017749219806996

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