Properties

Label 2-1785-1.1-c1-0-4
Degree $2$
Conductor $1785$
Sign $1$
Analytic cond. $14.2532$
Root an. cond. $3.77535$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2-s − 3-s − 4-s − 5-s + 6-s + 7-s + 3·8-s + 9-s + 10-s + 12-s − 2·13-s − 14-s + 15-s − 16-s − 17-s − 18-s + 20-s − 21-s + 4·23-s − 3·24-s + 25-s + 2·26-s − 27-s − 28-s − 6·29-s − 30-s − 5·32-s + ⋯
L(s)  = 1  − 0.707·2-s − 0.577·3-s − 1/2·4-s − 0.447·5-s + 0.408·6-s + 0.377·7-s + 1.06·8-s + 1/3·9-s + 0.316·10-s + 0.288·12-s − 0.554·13-s − 0.267·14-s + 0.258·15-s − 1/4·16-s − 0.242·17-s − 0.235·18-s + 0.223·20-s − 0.218·21-s + 0.834·23-s − 0.612·24-s + 1/5·25-s + 0.392·26-s − 0.192·27-s − 0.188·28-s − 1.11·29-s − 0.182·30-s − 0.883·32-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1785 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1785 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1785\)    =    \(3 \cdot 5 \cdot 7 \cdot 17\)
Sign: $1$
Analytic conductor: \(14.2532\)
Root analytic conductor: \(3.77535\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1785,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.6070715547\)
\(L(\frac12)\) \(\approx\) \(0.6070715547\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 + T \)
5 \( 1 + T \)
7 \( 1 - T \)
17 \( 1 + T \)
good2 \( 1 + T + p T^{2} \)
11 \( 1 + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 - 4 T + p T^{2} \)
29 \( 1 + 6 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 + 2 T + p T^{2} \)
41 \( 1 - 6 T + p T^{2} \)
43 \( 1 + 12 T + p T^{2} \)
47 \( 1 - 8 T + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 + 12 T + p T^{2} \)
61 \( 1 - 2 T + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 + 12 T + p T^{2} \)
73 \( 1 + 2 T + p T^{2} \)
79 \( 1 + p T^{2} \)
83 \( 1 - 12 T + p T^{2} \)
89 \( 1 - 14 T + p T^{2} \)
97 \( 1 - 14 T + p T^{2} \)
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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

−9.140578695270388175579151998321, −8.684615318586089138051923847400, −7.56027727991688862934645299344, −7.32556938854746287746667675015, −6.08179977882619530602071693949, −5.04102037535368753973952638358, −4.53446601517680007364682783907, −3.47023547889091835658046374013, −1.89996468146154077929099124513, −0.61796632486503105052239820723, 0.61796632486503105052239820723, 1.89996468146154077929099124513, 3.47023547889091835658046374013, 4.53446601517680007364682783907, 5.04102037535368753973952638358, 6.08179977882619530602071693949, 7.32556938854746287746667675015, 7.56027727991688862934645299344, 8.684615318586089138051923847400, 9.140578695270388175579151998321

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