Properties

Label 2-80-1.1-c3-0-1
Degree $2$
Conductor $80$
Sign $1$
Analytic cond. $4.72015$
Root an. cond. $2.17259$
Motivic weight $3$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 4·3-s + 5·5-s + 16·7-s − 11·9-s + 60·11-s + 86·13-s − 20·15-s + 18·17-s − 44·19-s − 64·21-s − 48·23-s + 25·25-s + 152·27-s − 186·29-s − 176·31-s − 240·33-s + 80·35-s + 254·37-s − 344·39-s + 186·41-s + 100·43-s − 55·45-s − 168·47-s − 87·49-s − 72·51-s − 498·53-s + 300·55-s + ⋯
L(s)  = 1  − 0.769·3-s + 0.447·5-s + 0.863·7-s − 0.407·9-s + 1.64·11-s + 1.83·13-s − 0.344·15-s + 0.256·17-s − 0.531·19-s − 0.665·21-s − 0.435·23-s + 1/5·25-s + 1.08·27-s − 1.19·29-s − 1.01·31-s − 1.26·33-s + 0.386·35-s + 1.12·37-s − 1.41·39-s + 0.708·41-s + 0.354·43-s − 0.182·45-s − 0.521·47-s − 0.253·49-s − 0.197·51-s − 1.29·53-s + 0.735·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 80 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(80\)    =    \(2^{4} \cdot 5\)
Sign: $1$
Analytic conductor: \(4.72015\)
Root analytic conductor: \(2.17259\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 80,\ (\ :3/2),\ 1)\)

Particular Values

\(L(2)\) \(\approx\) \(1.434346803\)
\(L(\frac12)\) \(\approx\) \(1.434346803\)
\(L(\frac{5}{2})\) 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 \( 1 - p T \)
good3 \( 1 + 4 T + p^{3} T^{2} \)
7 \( 1 - 16 T + p^{3} T^{2} \)
11 \( 1 - 60 T + p^{3} T^{2} \)
13 \( 1 - 86 T + p^{3} T^{2} \)
17 \( 1 - 18 T + p^{3} T^{2} \)
19 \( 1 + 44 T + p^{3} T^{2} \)
23 \( 1 + 48 T + p^{3} T^{2} \)
29 \( 1 + 186 T + p^{3} T^{2} \)
31 \( 1 + 176 T + p^{3} T^{2} \)
37 \( 1 - 254 T + p^{3} T^{2} \)
41 \( 1 - 186 T + p^{3} T^{2} \)
43 \( 1 - 100 T + p^{3} T^{2} \)
47 \( 1 + 168 T + p^{3} T^{2} \)
53 \( 1 + 498 T + p^{3} T^{2} \)
59 \( 1 - 252 T + p^{3} T^{2} \)
61 \( 1 + 58 T + p^{3} T^{2} \)
67 \( 1 - 1036 T + p^{3} T^{2} \)
71 \( 1 + 168 T + p^{3} T^{2} \)
73 \( 1 - 506 T + p^{3} T^{2} \)
79 \( 1 + 272 T + p^{3} T^{2} \)
83 \( 1 + 948 T + p^{3} T^{2} \)
89 \( 1 + 1014 T + p^{3} T^{2} \)
97 \( 1 + 766 T + p^{3} T^{2} \)
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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

−14.04656784550659714323108922361, −12.71800659171987311889898318556, −11.31909417005542478259427299338, −11.11086455008068731849367021414, −9.352877487338035620296674767825, −8.297480444908584132058943782254, −6.48907515930837872263663484701, −5.65264268034534292440925281895, −3.97608150101440958440402189292, −1.40292465776468605849893086210, 1.40292465776468605849893086210, 3.97608150101440958440402189292, 5.65264268034534292440925281895, 6.48907515930837872263663484701, 8.297480444908584132058943782254, 9.352877487338035620296674767825, 11.11086455008068731849367021414, 11.31909417005542478259427299338, 12.71800659171987311889898318556, 14.04656784550659714323108922361

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