Properties

Label 2-3-1.1-c15-0-1
Degree $2$
Conductor $3$
Sign $-1$
Analytic cond. $4.28080$
Root an. cond. $2.06901$
Motivic weight $15$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 72·2-s + 2.18e3·3-s − 2.75e4·4-s − 2.21e5·5-s − 1.57e5·6-s − 2.14e6·7-s + 4.34e6·8-s + 4.78e6·9-s + 1.59e7·10-s + 3.71e7·11-s − 6.03e7·12-s − 2.79e8·13-s + 1.54e8·14-s − 4.84e8·15-s + 5.91e8·16-s + 2.49e9·17-s − 3.44e8·18-s − 4.66e9·19-s + 6.10e9·20-s − 4.69e9·21-s − 2.67e9·22-s − 1.84e10·23-s + 9.50e9·24-s + 1.85e10·25-s + 2.01e10·26-s + 1.04e10·27-s + 5.92e10·28-s + ⋯
L(s)  = 1  − 0.397·2-s + 0.577·3-s − 0.841·4-s − 1.26·5-s − 0.229·6-s − 0.986·7-s + 0.732·8-s + 1/3·9-s + 0.504·10-s + 0.575·11-s − 0.486·12-s − 1.23·13-s + 0.392·14-s − 0.732·15-s + 0.550·16-s + 1.47·17-s − 0.132·18-s − 1.19·19-s + 1.06·20-s − 0.569·21-s − 0.228·22-s − 1.13·23-s + 0.422·24-s + 0.607·25-s + 0.492·26-s + 0.192·27-s + 0.830·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 3 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(16-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 3 ^{s/2} \, \Gamma_{\C}(s+15/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(3\)
Sign: $-1$
Analytic conductor: \(4.28080\)
Root analytic conductor: \(2.06901\)
Motivic weight: \(15\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 3,\ (\ :15/2),\ -1)\)

Particular Values

\(L(8)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{17}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 - p^{7} T \)
good2 \( 1 + 9 p^{3} T + p^{15} T^{2} \)
5 \( 1 + 44298 p T + p^{15} T^{2} \)
7 \( 1 + 307000 p T + p^{15} T^{2} \)
11 \( 1 - 37169316 T + p^{15} T^{2} \)
13 \( 1 + 21536482 p T + p^{15} T^{2} \)
17 \( 1 - 2492912754 T + p^{15} T^{2} \)
19 \( 1 + 4669782244 T + p^{15} T^{2} \)
23 \( 1 + 18467933400 T + p^{15} T^{2} \)
29 \( 1 + 115953449418 T + p^{15} T^{2} \)
31 \( 1 + 56187023200 T + p^{15} T^{2} \)
37 \( 1 - 614764926830 T + p^{15} T^{2} \)
41 \( 1 - 549859792410 T + p^{15} T^{2} \)
43 \( 1 + 982884444028 T + p^{15} T^{2} \)
47 \( 1 - 2076144322896 T + p^{15} T^{2} \)
53 \( 1 + 12048378188130 T + p^{15} T^{2} \)
59 \( 1 - 23087905758324 T + p^{15} T^{2} \)
61 \( 1 + 8505809142442 T + p^{15} T^{2} \)
67 \( 1 + 12331010771476 T + p^{15} T^{2} \)
71 \( 1 - 58989192692472 T + p^{15} T^{2} \)
73 \( 1 + 5609828808070 T + p^{15} T^{2} \)
79 \( 1 - 159918683826800 T + p^{15} T^{2} \)
83 \( 1 - 57675894342876 T + p^{15} T^{2} \)
89 \( 1 + 362287610413974 T + p^{15} T^{2} \)
97 \( 1 + 539786645144926 T + p^{15} T^{2} \)
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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

−22.22709361670372848431172249679, −19.70165338084625248753840444234, −18.96784897446820523487252312872, −16.63595698630902159288238337018, −14.66547827150741435452020518493, −12.53157168558172969261199283440, −9.657989850576913418310834455705, −7.81293689921521718144519552817, −3.86848774218855736996142375930, 0, 3.86848774218855736996142375930, 7.81293689921521718144519552817, 9.657989850576913418310834455705, 12.53157168558172969261199283440, 14.66547827150741435452020518493, 16.63595698630902159288238337018, 18.96784897446820523487252312872, 19.70165338084625248753840444234, 22.22709361670372848431172249679

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