Properties

Label 2-21780-1.1-c1-0-19
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

−15.77520486044845, −15.19456706423662, −14.63614107787269, −14.36427463311601, −13.57025532189280, −13.22260707133271, −12.42418753840507, −12.21544336528580, −11.32161229860587, −10.85587034116314, −10.44481959755627, −9.524696175575973, −9.341781420855724, −8.618219850963325, −7.874772563932360, −7.462201722196920, −6.716360800910322, −6.146017895892479, −5.362501897359892, −5.022741926423458, −4.109693558703558, −3.570450408315346, −2.520756543858095, −2.059413484816205, −1.149055069014068, 0, 1.149055069014068, 2.059413484816205, 2.520756543858095, 3.570450408315346, 4.109693558703558, 5.022741926423458, 5.362501897359892, 6.146017895892479, 6.716360800910322, 7.462201722196920, 7.874772563932360, 8.618219850963325, 9.341781420855724, 9.524696175575973, 10.44481959755627, 10.85587034116314, 11.32161229860587, 12.21544336528580, 12.42418753840507, 13.22260707133271, 13.57025532189280, 14.36427463311601, 14.63614107787269, 15.19456706423662, 15.77520486044845

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