Properties

Label 2-84-1.1-c1-0-1
Degree $2$
Conductor $84$
Sign $1$
Analytic cond. $0.670743$
Root an. cond. $0.818989$
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-s + 7-s + 9-s − 6·11-s + 2·13-s − 4·19-s + 21-s − 6·23-s − 5·25-s + 27-s + 6·29-s + 8·31-s − 6·33-s + 2·37-s + 2·39-s + 12·41-s − 4·43-s + 12·47-s + 49-s − 6·53-s − 4·57-s − 10·61-s + 63-s + 8·67-s − 6·69-s + 6·71-s − 10·73-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.377·7-s + 1/3·9-s − 1.80·11-s + 0.554·13-s − 0.917·19-s + 0.218·21-s − 1.25·23-s − 25-s + 0.192·27-s + 1.11·29-s + 1.43·31-s − 1.04·33-s + 0.328·37-s + 0.320·39-s + 1.87·41-s − 0.609·43-s + 1.75·47-s + 1/7·49-s − 0.824·53-s − 0.529·57-s − 1.28·61-s + 0.125·63-s + 0.977·67-s − 0.722·69-s + 0.712·71-s − 1.17·73-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 84 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 84 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(84\)    =    \(2^{2} \cdot 3 \cdot 7\)
Sign: $1$
Analytic conductor: \(0.670743\)
Root analytic conductor: \(0.818989\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 84,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.095158554\)
\(L(\frac12)\) \(\approx\) \(1.095158554\)
\(L(\frac{3}{2})\) 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 \( 1 - T \)
7 \( 1 - T \)
good5 \( 1 + p T^{2} \)
11 \( 1 + 6 T + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 + p T^{2} \)
19 \( 1 + 4 T + p T^{2} \)
23 \( 1 + 6 T + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 - 8 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 - 12 T + p T^{2} \)
43 \( 1 + 4 T + p T^{2} \)
47 \( 1 - 12 T + p T^{2} \)
53 \( 1 + 6 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 + 10 T + p T^{2} \)
67 \( 1 - 8 T + p T^{2} \)
71 \( 1 - 6 T + p T^{2} \)
73 \( 1 + 10 T + p T^{2} \)
79 \( 1 + 4 T + p T^{2} \)
83 \( 1 + 12 T + p T^{2} \)
89 \( 1 - 12 T + p T^{2} \)
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

−14.14038347866147288374447261491, −13.36862682940518904032262150100, −12.28788103948781459752618808920, −10.85008427837924164556556041776, −9.963412816934859098438744607306, −8.418500928498397092746321719715, −7.74489471466623660805940258686, −5.98540521798352690518559815387, −4.39050801784138122129668187119, −2.51752502799515976298852414682, 2.51752502799515976298852414682, 4.39050801784138122129668187119, 5.98540521798352690518559815387, 7.74489471466623660805940258686, 8.418500928498397092746321719715, 9.963412816934859098438744607306, 10.85008427837924164556556041776, 12.28788103948781459752618808920, 13.36862682940518904032262150100, 14.14038347866147288374447261491

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