Properties

Label 2-2640-1.1-c1-0-24
Degree $2$
Conductor $2640$
Sign $-1$
Analytic cond. $21.0805$
Root an. cond. $4.59135$
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  − 3-s − 5-s − 2·7-s + 9-s − 11-s + 15-s + 4·17-s + 4·19-s + 2·21-s − 4·23-s + 25-s − 27-s + 6·29-s + 33-s + 2·35-s − 2·37-s + 2·41-s + 2·43-s − 45-s − 12·47-s − 3·49-s − 4·51-s − 2·53-s + 55-s − 4·57-s − 4·59-s + 2·61-s + ⋯
L(s)  = 1  − 0.577·3-s − 0.447·5-s − 0.755·7-s + 1/3·9-s − 0.301·11-s + 0.258·15-s + 0.970·17-s + 0.917·19-s + 0.436·21-s − 0.834·23-s + 1/5·25-s − 0.192·27-s + 1.11·29-s + 0.174·33-s + 0.338·35-s − 0.328·37-s + 0.312·41-s + 0.304·43-s − 0.149·45-s − 1.75·47-s − 3/7·49-s − 0.560·51-s − 0.274·53-s + 0.134·55-s − 0.529·57-s − 0.520·59-s + 0.256·61-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2640 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2640 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2640\)    =    \(2^{4} \cdot 3 \cdot 5 \cdot 11\)
Sign: $-1$
Analytic conductor: \(21.0805\)
Root analytic conductor: \(4.59135\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 2640,\ (\ :1/2),\ -1)\)

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 \( 1 + T \)
5 \( 1 + T \)
11 \( 1 + T \)
good7 \( 1 + 2 T + p T^{2} \)
13 \( 1 + p T^{2} \)
17 \( 1 - 4 T + p T^{2} \)
19 \( 1 - 4 T + p T^{2} \)
23 \( 1 + 4 T + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 + p T^{2} \)
37 \( 1 + 2 T + p T^{2} \)
41 \( 1 - 2 T + p T^{2} \)
43 \( 1 - 2 T + p T^{2} \)
47 \( 1 + 12 T + p T^{2} \)
53 \( 1 + 2 T + p T^{2} \)
59 \( 1 + 4 T + p T^{2} \)
61 \( 1 - 2 T + p T^{2} \)
67 \( 1 + p T^{2} \)
71 \( 1 + 8 T + p T^{2} \)
73 \( 1 + p T^{2} \)
79 \( 1 + 8 T + p T^{2} \)
83 \( 1 + 2 T + p T^{2} \)
89 \( 1 + 2 T + p T^{2} \)
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

−8.327928248082230186328675054526, −7.71628868509994110289646962435, −6.90835470758380687640993102815, −6.16612681967173480463612841510, −5.41528069520776634370515445572, −4.58168632302442688326468148552, −3.57605740507444799325548971772, −2.84175954669628532536409257901, −1.30766337550682033617411731645, 0, 1.30766337550682033617411731645, 2.84175954669628532536409257901, 3.57605740507444799325548971772, 4.58168632302442688326468148552, 5.41528069520776634370515445572, 6.16612681967173480463612841510, 6.90835470758380687640993102815, 7.71628868509994110289646962435, 8.327928248082230186328675054526

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