Properties

Label 2-690-3.2-c2-0-44
Degree $2$
Conductor $690$
Sign $-0.285 + 0.958i$
Analytic cond. $18.8011$
Root an. cond. $4.33602$
Motivic weight $2$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 1.41i·2-s + (−2.87 − 0.857i)3-s − 2.00·4-s − 2.23i·5-s + (1.21 − 4.06i)6-s + 5.06·7-s − 2.82i·8-s + (7.52 + 4.93i)9-s + 3.16·10-s − 18.8i·11-s + (5.74 + 1.71i)12-s − 3.24·13-s + 7.16i·14-s + (−1.91 + 6.42i)15-s + 4.00·16-s + 19.0i·17-s + ⋯
L(s)  = 1  + 0.707i·2-s + (−0.958 − 0.285i)3-s − 0.500·4-s − 0.447i·5-s + (0.202 − 0.677i)6-s + 0.723·7-s − 0.353i·8-s + (0.836 + 0.547i)9-s + 0.316·10-s − 1.71i·11-s + (0.479 + 0.142i)12-s − 0.249·13-s + 0.511i·14-s + (−0.127 + 0.428i)15-s + 0.250·16-s + 1.12i·17-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 690 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.285 + 0.958i)\, \overline{\Lambda}(3-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 690 ^{s/2} \, \Gamma_{\C}(s+1) \, L(s)\cr =\mathstrut & (-0.285 + 0.958i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(690\)    =    \(2 \cdot 3 \cdot 5 \cdot 23\)
Sign: $-0.285 + 0.958i$
Analytic conductor: \(18.8011\)
Root analytic conductor: \(4.33602\)
Motivic weight: \(2\)
Rational: no
Arithmetic: yes
Character: $\chi_{690} (461, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 690,\ (\ :1),\ -0.285 + 0.958i)\)

Particular Values

\(L(\frac{3}{2})\) \(\approx\) \(0.6475654268\)
\(L(\frac12)\) \(\approx\) \(0.6475654268\)
\(L(2)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - 1.41iT \)
3 \( 1 + (2.87 + 0.857i)T \)
5 \( 1 + 2.23iT \)
23 \( 1 - 4.79iT \)
good7 \( 1 - 5.06T + 49T^{2} \)
11 \( 1 + 18.8iT - 121T^{2} \)
13 \( 1 + 3.24T + 169T^{2} \)
17 \( 1 - 19.0iT - 289T^{2} \)
19 \( 1 + 8.49T + 361T^{2} \)
29 \( 1 - 18.1iT - 841T^{2} \)
31 \( 1 + 7.67T + 961T^{2} \)
37 \( 1 - 5.74T + 1.36e3T^{2} \)
41 \( 1 + 48.7iT - 1.68e3T^{2} \)
43 \( 1 - 9.50T + 1.84e3T^{2} \)
47 \( 1 + 52.9iT - 2.20e3T^{2} \)
53 \( 1 + 89.4iT - 2.80e3T^{2} \)
59 \( 1 + 58.9iT - 3.48e3T^{2} \)
61 \( 1 + 94.2T + 3.72e3T^{2} \)
67 \( 1 + 4.76T + 4.48e3T^{2} \)
71 \( 1 - 16.3iT - 5.04e3T^{2} \)
73 \( 1 + 91.7T + 5.32e3T^{2} \)
79 \( 1 + 110.T + 6.24e3T^{2} \)
83 \( 1 + 15.5iT - 6.88e3T^{2} \)
89 \( 1 + 98.9iT - 7.92e3T^{2} \)
97 \( 1 + 41.8T + 9.40e3T^{2} \)
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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

−10.14581195538442719012161156256, −8.783220810269019232850477081227, −8.276973421413125609419155576469, −7.32842833146107395609324210144, −6.25267238205481207871060248546, −5.63040697423908197795553123202, −4.82685037798491354370400368383, −3.70132112289767794537452127703, −1.61239188684320441027215965731, −0.27756445167948019142033776915, 1.45946770930429348046528211197, 2.70209840842500690065616689733, 4.41117527435355670007370010751, 4.67263556142184353620717370438, 5.90668115528540431822452991326, 7.05858283911829122442098578721, 7.74659917828863059330075434487, 9.252042164539841981193001625513, 9.846281291795940629177693328089, 10.62056224921191142467765540717

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