Properties

Label 2-980-1.1-c1-0-1
Degree $2$
Conductor $980$
Sign $1$
Analytic cond. $7.82533$
Root an. cond. $2.79738$
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  − 3·3-s + 5-s + 6·9-s − 5·11-s + 3·13-s − 3·15-s + 17-s − 6·19-s + 6·23-s + 25-s − 9·27-s − 9·29-s + 4·31-s + 15·33-s + 2·37-s − 9·39-s + 4·41-s + 10·43-s + 6·45-s + 47-s − 3·51-s + 4·53-s − 5·55-s + 18·57-s + 8·59-s + 8·61-s + 3·65-s + ⋯
L(s)  = 1  − 1.73·3-s + 0.447·5-s + 2·9-s − 1.50·11-s + 0.832·13-s − 0.774·15-s + 0.242·17-s − 1.37·19-s + 1.25·23-s + 1/5·25-s − 1.73·27-s − 1.67·29-s + 0.718·31-s + 2.61·33-s + 0.328·37-s − 1.44·39-s + 0.624·41-s + 1.52·43-s + 0.894·45-s + 0.145·47-s − 0.420·51-s + 0.549·53-s − 0.674·55-s + 2.38·57-s + 1.04·59-s + 1.02·61-s + 0.372·65-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 980 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 980 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(980\)    =    \(2^{2} \cdot 5 \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(7.82533\)
Root analytic conductor: \(2.79738\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 980,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.8135631627\)
\(L(\frac12)\) \(\approx\) \(0.8135631627\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
7 \( 1 \)
good3 \( 1 + p T + p T^{2} \)
11 \( 1 + 5 T + p T^{2} \)
13 \( 1 - 3 T + p T^{2} \)
17 \( 1 - T + p T^{2} \)
19 \( 1 + 6 T + p T^{2} \)
23 \( 1 - 6 T + p T^{2} \)
29 \( 1 + 9 T + p T^{2} \)
31 \( 1 - 4 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 - 4 T + p T^{2} \)
43 \( 1 - 10 T + p T^{2} \)
47 \( 1 - T + p T^{2} \)
53 \( 1 - 4 T + p T^{2} \)
59 \( 1 - 8 T + p T^{2} \)
61 \( 1 - 8 T + p T^{2} \)
67 \( 1 - 12 T + p T^{2} \)
71 \( 1 - 8 T + p T^{2} \)
73 \( 1 + 2 T + p T^{2} \)
79 \( 1 - 13 T + p T^{2} \)
83 \( 1 - 4 T + p T^{2} \)
89 \( 1 + 4 T + p T^{2} \)
97 \( 1 - 13 T + p T^{2} \)
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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

−10.33581669335433942997606841478, −9.399157544602484082257478460833, −8.254601233250958389865237776453, −7.23579943557103217993182216757, −6.38103485258561037052446742413, −5.62823751414852416971700636779, −5.09318860647436101841510990708, −4.00033630632803641873619633981, −2.33062913295078547814440271884, −0.76376003838796265827370008029, 0.76376003838796265827370008029, 2.33062913295078547814440271884, 4.00033630632803641873619633981, 5.09318860647436101841510990708, 5.62823751414852416971700636779, 6.38103485258561037052446742413, 7.23579943557103217993182216757, 8.254601233250958389865237776453, 9.399157544602484082257478460833, 10.33581669335433942997606841478

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