Properties

Label 2-240-1.1-c3-0-9
Degree $2$
Conductor $240$
Sign $-1$
Analytic cond. $14.1604$
Root an. cond. $3.76303$
Motivic weight $3$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3·3-s − 5·5-s − 20·7-s + 9·9-s + 56·11-s − 86·13-s − 15·15-s − 106·17-s − 4·19-s − 60·21-s − 136·23-s + 25·25-s + 27·27-s − 206·29-s + 152·31-s + 168·33-s + 100·35-s + 282·37-s − 258·39-s − 246·41-s − 412·43-s − 45·45-s − 40·47-s + 57·49-s − 318·51-s − 126·53-s − 280·55-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.447·5-s − 1.07·7-s + 1/3·9-s + 1.53·11-s − 1.83·13-s − 0.258·15-s − 1.51·17-s − 0.0482·19-s − 0.623·21-s − 1.23·23-s + 1/5·25-s + 0.192·27-s − 1.31·29-s + 0.880·31-s + 0.886·33-s + 0.482·35-s + 1.25·37-s − 1.05·39-s − 0.937·41-s − 1.46·43-s − 0.149·45-s − 0.124·47-s + 0.166·49-s − 0.873·51-s − 0.326·53-s − 0.686·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(240\)    =    \(2^{4} \cdot 3 \cdot 5\)
Sign: $-1$
Analytic conductor: \(14.1604\)
Root analytic conductor: \(3.76303\)
Motivic weight: \(3\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 240,\ (\ :3/2),\ -1)\)

Particular Values

\(L(2)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - p T \)
5 \( 1 + p T \)
good7 \( 1 + 20 T + p^{3} T^{2} \)
11 \( 1 - 56 T + p^{3} T^{2} \)
13 \( 1 + 86 T + p^{3} T^{2} \)
17 \( 1 + 106 T + p^{3} T^{2} \)
19 \( 1 + 4 T + p^{3} T^{2} \)
23 \( 1 + 136 T + p^{3} T^{2} \)
29 \( 1 + 206 T + p^{3} T^{2} \)
31 \( 1 - 152 T + p^{3} T^{2} \)
37 \( 1 - 282 T + p^{3} T^{2} \)
41 \( 1 + 6 p T + p^{3} T^{2} \)
43 \( 1 + 412 T + p^{3} T^{2} \)
47 \( 1 + 40 T + p^{3} T^{2} \)
53 \( 1 + 126 T + p^{3} T^{2} \)
59 \( 1 + 56 T + p^{3} T^{2} \)
61 \( 1 + 2 T + p^{3} T^{2} \)
67 \( 1 - 388 T + p^{3} T^{2} \)
71 \( 1 - 672 T + p^{3} T^{2} \)
73 \( 1 - 1170 T + p^{3} T^{2} \)
79 \( 1 + 408 T + p^{3} T^{2} \)
83 \( 1 + 668 T + p^{3} T^{2} \)
89 \( 1 - 66 T + p^{3} T^{2} \)
97 \( 1 + 926 T + p^{3} T^{2} \)
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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

−11.38407830755403226410339085814, −9.830634563504035594461470453809, −9.462482636939464055806333241906, −8.304814021308266803639742360743, −7.08679694563712438398862983884, −6.39972992043584706961347465071, −4.58289554825282444053137732009, −3.58718016577581895426907483168, −2.20563464037713717269066569123, 0, 2.20563464037713717269066569123, 3.58718016577581895426907483168, 4.58289554825282444053137732009, 6.39972992043584706961347465071, 7.08679694563712438398862983884, 8.304814021308266803639742360743, 9.462482636939464055806333241906, 9.830634563504035594461470453809, 11.38407830755403226410339085814

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