Properties

Label 2-261-1.1-c3-0-30
Degree $2$
Conductor $261$
Sign $-1$
Analytic cond. $15.3994$
Root an. cond. $3.92421$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2.41·2-s − 2.17·4-s + 10.6·5-s − 22.1·7-s − 24.5·8-s + 25.7·10-s − 39.3·11-s + 23.7·13-s − 53.4·14-s − 41.9·16-s − 4.54·17-s − 155.·19-s − 23.1·20-s − 94.9·22-s + 41.8·23-s − 11.4·25-s + 57.3·26-s + 48.0·28-s − 29·29-s − 57.9·31-s + 95.2·32-s − 10.9·34-s − 235.·35-s + 235.·37-s − 374.·38-s − 261.·40-s + 175.·41-s + ⋯
L(s)  = 1  + 0.853·2-s − 0.271·4-s + 0.953·5-s − 1.19·7-s − 1.08·8-s + 0.813·10-s − 1.07·11-s + 0.507·13-s − 1.02·14-s − 0.654·16-s − 0.0648·17-s − 1.87·19-s − 0.258·20-s − 0.920·22-s + 0.379·23-s − 0.0914·25-s + 0.432·26-s + 0.324·28-s − 0.185·29-s − 0.335·31-s + 0.526·32-s − 0.0553·34-s − 1.13·35-s + 1.04·37-s − 1.60·38-s − 1.03·40-s + 0.667·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 261 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 261 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(261\)    =    \(3^{2} \cdot 29\)
Sign: $-1$
Analytic conductor: \(15.3994\)
Root analytic conductor: \(3.92421\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 261,\ (\ :3/2),\ -1)\)

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)$
bad3 \( 1 \)
29 \( 1 + 29T \)
good2 \( 1 - 2.41T + 8T^{2} \)
5 \( 1 - 10.6T + 125T^{2} \)
7 \( 1 + 22.1T + 343T^{2} \)
11 \( 1 + 39.3T + 1.33e3T^{2} \)
13 \( 1 - 23.7T + 2.19e3T^{2} \)
17 \( 1 + 4.54T + 4.91e3T^{2} \)
19 \( 1 + 155.T + 6.85e3T^{2} \)
23 \( 1 - 41.8T + 1.21e4T^{2} \)
31 \( 1 + 57.9T + 2.97e4T^{2} \)
37 \( 1 - 235.T + 5.06e4T^{2} \)
41 \( 1 - 175.T + 6.89e4T^{2} \)
43 \( 1 + 402.T + 7.95e4T^{2} \)
47 \( 1 + 227.T + 1.03e5T^{2} \)
53 \( 1 + 673.T + 1.48e5T^{2} \)
59 \( 1 - 800.T + 2.05e5T^{2} \)
61 \( 1 + 222.T + 2.26e5T^{2} \)
67 \( 1 + 524.T + 3.00e5T^{2} \)
71 \( 1 - 281.T + 3.57e5T^{2} \)
73 \( 1 - 1.22e3T + 3.89e5T^{2} \)
79 \( 1 - 611.T + 4.93e5T^{2} \)
83 \( 1 + 515.T + 5.71e5T^{2} \)
89 \( 1 - 358.T + 7.04e5T^{2} \)
97 \( 1 - 829.T + 9.12e5T^{2} \)
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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

−11.05330249343104460068820473000, −10.02755383433594352635505502822, −9.308553087093702942066863163329, −8.252881312175006003290966945010, −6.51850845579849506620335615069, −5.96745070307869472414828119554, −4.86688972439925716027236394618, −3.56636673840461775327808862451, −2.39733452292507130240137288298, 0, 2.39733452292507130240137288298, 3.56636673840461775327808862451, 4.86688972439925716027236394618, 5.96745070307869472414828119554, 6.51850845579849506620335615069, 8.252881312175006003290966945010, 9.308553087093702942066863163329, 10.02755383433594352635505502822, 11.05330249343104460068820473000

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