Properties

Label 2-240-1.1-c5-0-18
Degree $2$
Conductor $240$
Sign $-1$
Analytic cond. $38.4921$
Root an. cond. $6.20420$
Motivic weight $5$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 9·3-s + 25·5-s − 128·7-s + 81·9-s + 308·11-s − 1.05e3·13-s + 225·15-s + 1.58e3·17-s − 2.30e3·19-s − 1.15e3·21-s − 2.65e3·23-s + 625·25-s + 729·27-s + 1.19e3·29-s − 9.52e3·31-s + 2.77e3·33-s − 3.20e3·35-s + 4.47e3·37-s − 9.52e3·39-s − 6.19e3·41-s + 6.33e3·43-s + 2.02e3·45-s − 1.49e4·47-s − 423·49-s + 1.42e4·51-s + 3.83e4·53-s + 7.70e3·55-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447·5-s − 0.987·7-s + 1/3·9-s + 0.767·11-s − 1.73·13-s + 0.258·15-s + 1.33·17-s − 1.46·19-s − 0.570·21-s − 1.04·23-s + 1/5·25-s + 0.192·27-s + 0.264·29-s − 1.77·31-s + 0.443·33-s − 0.441·35-s + 0.536·37-s − 1.00·39-s − 0.575·41-s + 0.522·43-s + 0.149·45-s − 0.985·47-s − 0.0251·49-s + 0.768·51-s + 1.87·53-s + 0.343·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(6-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 240 ^{s/2} \, \Gamma_{\C}(s+5/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(240\)    =    \(2^{4} \cdot 3 \cdot 5\)
Sign: $-1$
Analytic conductor: \(38.4921\)
Root analytic conductor: \(6.20420\)
Motivic weight: \(5\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 240,\ (\ :5/2),\ -1)\)

Particular Values

\(L(3)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{7}{2})\) 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 \( 1 - p^{2} T \)
5 \( 1 - p^{2} T \)
good7 \( 1 + 128 T + p^{5} T^{2} \)
11 \( 1 - 28 p T + p^{5} T^{2} \)
13 \( 1 + 1058 T + p^{5} T^{2} \)
17 \( 1 - 1586 T + p^{5} T^{2} \)
19 \( 1 + 2308 T + p^{5} T^{2} \)
23 \( 1 + 2656 T + p^{5} T^{2} \)
29 \( 1 - 1198 T + p^{5} T^{2} \)
31 \( 1 + 9520 T + p^{5} T^{2} \)
37 \( 1 - 4470 T + p^{5} T^{2} \)
41 \( 1 + 6198 T + p^{5} T^{2} \)
43 \( 1 - 6332 T + p^{5} T^{2} \)
47 \( 1 + 14920 T + p^{5} T^{2} \)
53 \( 1 - 38310 T + p^{5} T^{2} \)
59 \( 1 + 196 p T + p^{5} T^{2} \)
61 \( 1 + 48338 T + p^{5} T^{2} \)
67 \( 1 + 56972 T + p^{5} T^{2} \)
71 \( 1 + 44856 T + p^{5} T^{2} \)
73 \( 1 + 19446 T + p^{5} T^{2} \)
79 \( 1 - 77328 T + p^{5} T^{2} \)
83 \( 1 + 40364 T + p^{5} T^{2} \)
89 \( 1 - 35706 T + p^{5} T^{2} \)
97 \( 1 + 97022 T + p^{5} T^{2} \)
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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

−10.43919944264366929671717721247, −9.749334674666883777118237462515, −9.057313986570085744618334608117, −7.76013281051998384128075926963, −6.79022568638182470435477701747, −5.72959178139775692632875867481, −4.26208040865700683696526503034, −3.04989953045417799470428930496, −1.86436847897045882467438207660, 0, 1.86436847897045882467438207660, 3.04989953045417799470428930496, 4.26208040865700683696526503034, 5.72959178139775692632875867481, 6.79022568638182470435477701747, 7.76013281051998384128075926963, 9.057313986570085744618334608117, 9.749334674666883777118237462515, 10.43919944264366929671717721247

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