Properties

Label 2-260-1.1-c1-0-1
Degree $2$
Conductor $260$
Sign $1$
Analytic cond. $2.07611$
Root an. cond. $1.44087$
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  + 2·3-s − 5-s + 2·7-s + 9-s + 4·11-s − 13-s − 2·15-s + 2·17-s + 4·21-s − 6·23-s + 25-s − 4·27-s − 10·29-s + 8·33-s − 2·35-s + 10·37-s − 2·39-s − 2·41-s + 2·43-s − 45-s − 6·47-s − 3·49-s + 4·51-s + 2·53-s − 4·55-s − 8·59-s + 2·61-s + ⋯
L(s)  = 1  + 1.15·3-s − 0.447·5-s + 0.755·7-s + 1/3·9-s + 1.20·11-s − 0.277·13-s − 0.516·15-s + 0.485·17-s + 0.872·21-s − 1.25·23-s + 1/5·25-s − 0.769·27-s − 1.85·29-s + 1.39·33-s − 0.338·35-s + 1.64·37-s − 0.320·39-s − 0.312·41-s + 0.304·43-s − 0.149·45-s − 0.875·47-s − 3/7·49-s + 0.560·51-s + 0.274·53-s − 0.539·55-s − 1.04·59-s + 0.256·61-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 260 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 260 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(260\)    =    \(2^{2} \cdot 5 \cdot 13\)
Sign: $1$
Analytic conductor: \(2.07611\)
Root analytic conductor: \(1.44087\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 260,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.764419164\)
\(L(\frac12)\) \(\approx\) \(1.764419164\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 + T \)
13 \( 1 + T \)
good3 \( 1 - 2 T + p T^{2} \)
7 \( 1 - 2 T + p T^{2} \)
11 \( 1 - 4 T + p T^{2} \)
17 \( 1 - 2 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 + 6 T + p T^{2} \)
29 \( 1 + 10 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 - 10 T + p T^{2} \)
41 \( 1 + 2 T + p T^{2} \)
43 \( 1 - 2 T + p T^{2} \)
47 \( 1 + 6 T + p T^{2} \)
53 \( 1 - 2 T + p T^{2} \)
59 \( 1 + 8 T + p T^{2} \)
61 \( 1 - 2 T + p T^{2} \)
67 \( 1 + 6 T + p T^{2} \)
71 \( 1 + 8 T + p T^{2} \)
73 \( 1 - 10 T + p T^{2} \)
79 \( 1 + 16 T + p T^{2} \)
83 \( 1 - 6 T + p T^{2} \)
89 \( 1 - 10 T + p T^{2} \)
97 \( 1 - 2 T + p T^{2} \)
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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

−11.86211802977140750906415972760, −11.24644254703426645988179324297, −9.804097713553654747996703799713, −9.029007054104177535540216852388, −8.075719677783827392213832045836, −7.44804443925374277002602322353, −5.95797413547964079007979268212, −4.38508404435448495799335874607, −3.41867360196891109068838701089, −1.87254010620899892030103745588, 1.87254010620899892030103745588, 3.41867360196891109068838701089, 4.38508404435448495799335874607, 5.95797413547964079007979268212, 7.44804443925374277002602322353, 8.075719677783827392213832045836, 9.029007054104177535540216852388, 9.804097713553654747996703799713, 11.24644254703426645988179324297, 11.86211802977140750906415972760

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