Properties

Label 2-688-43.24-c1-0-4
Degree $2$
Conductor $688$
Sign $-0.322 - 0.946i$
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  + (1.14 − 0.172i)3-s + (−1.45 + 0.993i)5-s + (0.297 + 0.514i)7-s + (−1.59 + 0.490i)9-s + (−0.967 + 4.23i)11-s + (0.242 + 3.23i)13-s + (−1.49 + 1.38i)15-s + (−4.57 − 3.12i)17-s + (−2.59 − 0.801i)19-s + (0.428 + 0.537i)21-s + (3.88 + 3.60i)23-s + (−0.690 + 1.75i)25-s + (−4.85 + 2.33i)27-s + (9.75 + 1.46i)29-s + (−1.36 − 3.47i)31-s + ⋯
L(s)  = 1  + (0.659 − 0.0994i)3-s + (−0.651 + 0.444i)5-s + (0.112 + 0.194i)7-s + (−0.530 + 0.163i)9-s + (−0.291 + 1.27i)11-s + (0.0672 + 0.896i)13-s + (−0.385 + 0.357i)15-s + (−1.11 − 0.757i)17-s + (−0.595 − 0.183i)19-s + (0.0935 + 0.117i)21-s + (0.809 + 0.751i)23-s + (−0.138 + 0.351i)25-s + (−0.934 + 0.450i)27-s + (1.81 + 0.272i)29-s + (−0.244 − 0.623i)31-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 688 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.322 - 0.946i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 688 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.322 - 0.946i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(688\)    =    \(2^{4} \cdot 43\)
Sign: $-0.322 - 0.946i$
Analytic conductor: \(5.49370\)
Root analytic conductor: \(2.34386\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{688} (497, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 688,\ (\ :1/2),\ -0.322 - 0.946i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.668109 + 0.933056i\)
\(L(\frac12)\) \(\approx\) \(0.668109 + 0.933056i\)
\(L(\frac{3}{2})\) 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 \( 1 + (-4.98 + 4.26i)T \)
good3 \( 1 + (-1.14 + 0.172i)T + (2.86 - 0.884i)T^{2} \)
5 \( 1 + (1.45 - 0.993i)T + (1.82 - 4.65i)T^{2} \)
7 \( 1 + (-0.297 - 0.514i)T + (-3.5 + 6.06i)T^{2} \)
11 \( 1 + (0.967 - 4.23i)T + (-9.91 - 4.77i)T^{2} \)
13 \( 1 + (-0.242 - 3.23i)T + (-12.8 + 1.93i)T^{2} \)
17 \( 1 + (4.57 + 3.12i)T + (6.21 + 15.8i)T^{2} \)
19 \( 1 + (2.59 + 0.801i)T + (15.6 + 10.7i)T^{2} \)
23 \( 1 + (-3.88 - 3.60i)T + (1.71 + 22.9i)T^{2} \)
29 \( 1 + (-9.75 - 1.46i)T + (27.7 + 8.54i)T^{2} \)
31 \( 1 + (1.36 + 3.47i)T + (-22.7 + 21.0i)T^{2} \)
37 \( 1 + (0.673 - 1.16i)T + (-18.5 - 32.0i)T^{2} \)
41 \( 1 + (6.99 - 8.76i)T + (-9.12 - 39.9i)T^{2} \)
47 \( 1 + (-0.909 - 3.98i)T + (-42.3 + 20.3i)T^{2} \)
53 \( 1 + (0.180 - 2.40i)T + (-52.4 - 7.89i)T^{2} \)
59 \( 1 + (0.662 - 0.318i)T + (36.7 - 46.1i)T^{2} \)
61 \( 1 + (-1.86 + 4.76i)T + (-44.7 - 41.4i)T^{2} \)
67 \( 1 + (-3.67 - 1.13i)T + (55.3 + 37.7i)T^{2} \)
71 \( 1 + (2.81 - 2.61i)T + (5.30 - 70.8i)T^{2} \)
73 \( 1 + (0.557 + 7.43i)T + (-72.1 + 10.8i)T^{2} \)
79 \( 1 + (-6.69 - 11.5i)T + (-39.5 + 68.4i)T^{2} \)
83 \( 1 + (-7.70 + 1.16i)T + (79.3 - 24.4i)T^{2} \)
89 \( 1 + (4.45 - 0.672i)T + (85.0 - 26.2i)T^{2} \)
97 \( 1 + (0.0411 - 0.180i)T + (-87.3 - 42.0i)T^{2} \)
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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

−10.89150998664907788280215812777, −9.685970388201689524949947496131, −8.977955843848936699849675561597, −8.153021803004452535652301554272, −7.23169767168722786196979163194, −6.63881105557178360417129453388, −5.09623805522268304490393272119, −4.23752723937929358939156764879, −2.96784580553764293867935008444, −2.05967086555247816366077731319, 0.53655241965342491756095537888, 2.56947182024083464747092462068, 3.53154446162449867560893307757, 4.51471532912316553796078872386, 5.71176353244504218643464426341, 6.66124341324781558737178254749, 8.037229739522504117976610543829, 8.474808720758520899574694951622, 8.927135028608471216260056681567, 10.45214957913406567638618043426

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