Properties

Label 2-1620-1.1-c1-0-4
Degree $2$
Conductor $1620$
Sign $1$
Analytic cond. $12.9357$
Root an. cond. $3.59663$
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  − 5-s + 2·7-s + 3·11-s − 4·13-s + 6·17-s − 7·19-s + 6·23-s + 25-s + 3·29-s + 5·31-s − 2·35-s − 4·37-s + 3·41-s + 8·43-s − 3·49-s − 6·53-s − 3·55-s − 3·59-s + 14·61-s + 4·65-s + 2·67-s + 15·71-s − 10·73-s + 6·77-s + 8·79-s − 6·85-s + 15·89-s + ⋯
L(s)  = 1  − 0.447·5-s + 0.755·7-s + 0.904·11-s − 1.10·13-s + 1.45·17-s − 1.60·19-s + 1.25·23-s + 1/5·25-s + 0.557·29-s + 0.898·31-s − 0.338·35-s − 0.657·37-s + 0.468·41-s + 1.21·43-s − 3/7·49-s − 0.824·53-s − 0.404·55-s − 0.390·59-s + 1.79·61-s + 0.496·65-s + 0.244·67-s + 1.78·71-s − 1.17·73-s + 0.683·77-s + 0.900·79-s − 0.650·85-s + 1.58·89-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1620 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1620\)    =    \(2^{2} \cdot 3^{4} \cdot 5\)
Sign: $1$
Analytic conductor: \(12.9357\)
Root analytic conductor: \(3.59663\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1620,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.768309550\)
\(L(\frac12)\) \(\approx\) \(1.768309550\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 \)
5 \( 1 + T \)
good7 \( 1 - 2 T + p T^{2} \)
11 \( 1 - 3 T + p T^{2} \)
13 \( 1 + 4 T + p T^{2} \)
17 \( 1 - 6 T + p T^{2} \)
19 \( 1 + 7 T + p T^{2} \)
23 \( 1 - 6 T + p T^{2} \)
29 \( 1 - 3 T + p T^{2} \)
31 \( 1 - 5 T + p T^{2} \)
37 \( 1 + 4 T + p T^{2} \)
41 \( 1 - 3 T + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 + 6 T + p T^{2} \)
59 \( 1 + 3 T + p T^{2} \)
61 \( 1 - 14 T + p T^{2} \)
67 \( 1 - 2 T + p T^{2} \)
71 \( 1 - 15 T + p T^{2} \)
73 \( 1 + 10 T + p T^{2} \)
79 \( 1 - 8 T + p T^{2} \)
83 \( 1 + p T^{2} \)
89 \( 1 - 15 T + p T^{2} \)
97 \( 1 - 8 T + p T^{2} \)
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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

−9.350008191557247201713592421654, −8.520132265520441292568641061144, −7.84879369492728211171406800969, −7.06428783817257455778777253391, −6.24494495927416800929137563864, −5.08640238806783911224564983974, −4.48129377232232771916919304117, −3.45873666927766689129502793121, −2.28999144936657413232719811197, −0.971842681152646156105123228115, 0.971842681152646156105123228115, 2.28999144936657413232719811197, 3.45873666927766689129502793121, 4.48129377232232771916919304117, 5.08640238806783911224564983974, 6.24494495927416800929137563864, 7.06428783817257455778777253391, 7.84879369492728211171406800969, 8.520132265520441292568641061144, 9.350008191557247201713592421654

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