Properties

Label 2-21780-1.1-c1-0-21
Degree $2$
Conductor $21780$
Sign $-1$
Analytic cond. $173.914$
Root an. cond. $13.1876$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 5-s − 7-s + 2·13-s + 2·19-s + 25-s + 6·29-s − 4·31-s − 35-s − 4·37-s − 9·41-s − 43-s + 3·47-s − 6·49-s + 6·53-s − 61-s + 2·65-s − 13·67-s + 12·71-s − 16·73-s − 10·79-s − 12·83-s + 3·89-s − 2·91-s + 2·95-s − 10·97-s + 101-s + 103-s + ⋯
L(s)  = 1  + 0.447·5-s − 0.377·7-s + 0.554·13-s + 0.458·19-s + 1/5·25-s + 1.11·29-s − 0.718·31-s − 0.169·35-s − 0.657·37-s − 1.40·41-s − 0.152·43-s + 0.437·47-s − 6/7·49-s + 0.824·53-s − 0.128·61-s + 0.248·65-s − 1.58·67-s + 1.42·71-s − 1.87·73-s − 1.12·79-s − 1.31·83-s + 0.317·89-s − 0.209·91-s + 0.205·95-s − 1.01·97-s + 0.0995·101-s + 0.0985·103-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 21780 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 21780 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(21780\)    =    \(2^{2} \cdot 3^{2} \cdot 5 \cdot 11^{2}\)
Sign: $-1$
Analytic conductor: \(173.914\)
Root analytic conductor: \(13.1876\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 21780,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
11 \( 1 \)
good7 \( 1 + T + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 + p T^{2} \)
19 \( 1 - 2 T + p T^{2} \)
23 \( 1 + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 + 4 T + p T^{2} \)
37 \( 1 + 4 T + p T^{2} \)
41 \( 1 + 9 T + p T^{2} \)
43 \( 1 + T + p T^{2} \)
47 \( 1 - 3 T + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 + T + p T^{2} \)
67 \( 1 + 13 T + p T^{2} \)
71 \( 1 - 12 T + p T^{2} \)
73 \( 1 + 16 T + p T^{2} \)
79 \( 1 + 10 T + p T^{2} \)
83 \( 1 + 12 T + p T^{2} \)
89 \( 1 - 3 T + p T^{2} \)
97 \( 1 + 10 T + p T^{2} \)
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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

−15.93545586618011, −15.29683733110204, −14.72827447992851, −14.11717160686752, −13.61660674242144, −13.21981679641475, −12.59987414196933, −11.97822112200753, −11.54441913803194, −10.74196402514580, −10.32646209949514, −9.774626558755615, −9.173615882861238, −8.568176726358413, −8.130955777689162, −7.128475757041908, −6.878700948915784, −6.038575944326981, −5.604046512703937, −4.876849429568776, −4.169314453510117, −3.338993738383419, −2.861196409852831, −1.862365947715089, −1.176527112536176, 0, 1.176527112536176, 1.862365947715089, 2.861196409852831, 3.338993738383419, 4.169314453510117, 4.876849429568776, 5.604046512703937, 6.038575944326981, 6.878700948915784, 7.128475757041908, 8.130955777689162, 8.568176726358413, 9.173615882861238, 9.774626558755615, 10.32646209949514, 10.74196402514580, 11.54441913803194, 11.97822112200753, 12.59987414196933, 13.21981679641475, 13.61660674242144, 14.11717160686752, 14.72827447992851, 15.29683733110204, 15.93545586618011

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