Properties

Label 2-15-1.1-c11-0-4
Degree $2$
Conductor $15$
Sign $-1$
Analytic cond. $11.5251$
Root an. cond. $3.39487$
Motivic weight $11$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 56·2-s − 243·3-s + 1.08e3·4-s + 3.12e3·5-s + 1.36e4·6-s + 2.79e4·7-s + 5.37e4·8-s + 5.90e4·9-s − 1.75e5·10-s − 1.12e5·11-s − 2.64e5·12-s − 1.09e6·13-s − 1.56e6·14-s − 7.59e5·15-s − 5.23e6·16-s − 2.49e5·17-s − 3.30e6·18-s − 1.37e7·19-s + 3.40e6·20-s − 6.80e6·21-s + 6.27e6·22-s + 4.13e7·23-s − 1.30e7·24-s + 9.76e6·25-s + 6.14e7·26-s − 1.43e7·27-s + 3.04e7·28-s + ⋯
L(s)  = 1  − 1.23·2-s − 0.577·3-s + 0.531·4-s + 0.447·5-s + 0.714·6-s + 0.629·7-s + 0.580·8-s + 1/3·9-s − 0.553·10-s − 0.209·11-s − 0.306·12-s − 0.819·13-s − 0.778·14-s − 0.258·15-s − 1.24·16-s − 0.0426·17-s − 0.412·18-s − 1.27·19-s + 0.237·20-s − 0.363·21-s + 0.259·22-s + 1.34·23-s − 0.334·24-s + 1/5·25-s + 1.01·26-s − 0.192·27-s + 0.334·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 15 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(12-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 15 ^{s/2} \, \Gamma_{\C}(s+11/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(15\)    =    \(3 \cdot 5\)
Sign: $-1$
Analytic conductor: \(11.5251\)
Root analytic conductor: \(3.39487\)
Motivic weight: \(11\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 15,\ (\ :11/2),\ -1)\)

Particular Values

\(L(6)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{13}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 + p^{5} T \)
5 \( 1 - p^{5} T \)
good2 \( 1 + 7 p^{3} T + p^{11} T^{2} \)
7 \( 1 - 27984 T + p^{11} T^{2} \)
11 \( 1 + 112028 T + p^{11} T^{2} \)
13 \( 1 + 1096922 T + p^{11} T^{2} \)
17 \( 1 + 249566 T + p^{11} T^{2} \)
19 \( 1 + 13712420 T + p^{11} T^{2} \)
23 \( 1 - 41395728 T + p^{11} T^{2} \)
29 \( 1 + 4533850 T + p^{11} T^{2} \)
31 \( 1 + 265339008 T + p^{11} T^{2} \)
37 \( 1 + 212136946 T + p^{11} T^{2} \)
41 \( 1 + 1266969958 T + p^{11} T^{2} \)
43 \( 1 - 14129548 T + p^{11} T^{2} \)
47 \( 1 + 2657273336 T + p^{11} T^{2} \)
53 \( 1 - 2402699278 T + p^{11} T^{2} \)
59 \( 1 - 7498737220 T + p^{11} T^{2} \)
61 \( 1 + 4064828858 T + p^{11} T^{2} \)
67 \( 1 - 6871514244 T + p^{11} T^{2} \)
71 \( 1 + 13283734648 T + p^{11} T^{2} \)
73 \( 1 + 28875844262 T + p^{11} T^{2} \)
79 \( 1 - 27100302240 T + p^{11} T^{2} \)
83 \( 1 + 34365255132 T + p^{11} T^{2} \)
89 \( 1 + 63500412630 T + p^{11} T^{2} \)
97 \( 1 - 19634495234 T + p^{11} T^{2} \)
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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

−16.63182495259775246427154168707, −14.82166084129453650647384718757, −13.02286657349237733147212992755, −11.19569489652602879008610450418, −10.08917067549954039747178841948, −8.659063713795335150329635271913, −7.07544833509577549079444966194, −4.96727937920632166045052817687, −1.74079702699032931824273264204, 0, 1.74079702699032931824273264204, 4.96727937920632166045052817687, 7.07544833509577549079444966194, 8.659063713795335150329635271913, 10.08917067549954039747178841948, 11.19569489652602879008610450418, 13.02286657349237733147212992755, 14.82166084129453650647384718757, 16.63182495259775246427154168707

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