Properties

Label 2-931-1.1-c1-0-34
Degree $2$
Conductor $931$
Sign $-1$
Analytic cond. $7.43407$
Root an. cond. $2.72654$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 1.41·2-s − 1.41·3-s + 2.82·5-s + 2.00·6-s + 2.82·8-s − 0.999·9-s − 4.00·10-s − 0.171·11-s − 6.24·13-s − 4.00·15-s − 4.00·16-s + 3·17-s + 1.41·18-s − 19-s + 0.242·22-s + 3·23-s − 4·24-s + 3.00·25-s + 8.82·26-s + 5.65·27-s − 3.17·29-s + 5.65·30-s + 2.24·31-s + 0.242·33-s − 4.24·34-s + ⋯
L(s)  = 1  − 1.00·2-s − 0.816·3-s + 1.26·5-s + 0.816·6-s + 0.999·8-s − 0.333·9-s − 1.26·10-s − 0.0517·11-s − 1.73·13-s − 1.03·15-s − 1.00·16-s + 0.727·17-s + 0.333·18-s − 0.229·19-s + 0.0517·22-s + 0.625·23-s − 0.816·24-s + 0.600·25-s + 1.73·26-s + 1.08·27-s − 0.588·29-s + 1.03·30-s + 0.402·31-s + 0.0422·33-s − 0.727·34-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 931 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 931 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(931\)    =    \(7^{2} \cdot 19\)
Sign: $-1$
Analytic conductor: \(7.43407\)
Root analytic conductor: \(2.72654\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 931,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad7 \( 1 \)
19 \( 1 + T \)
good2 \( 1 + 1.41T + 2T^{2} \)
3 \( 1 + 1.41T + 3T^{2} \)
5 \( 1 - 2.82T + 5T^{2} \)
11 \( 1 + 0.171T + 11T^{2} \)
13 \( 1 + 6.24T + 13T^{2} \)
17 \( 1 - 3T + 17T^{2} \)
23 \( 1 - 3T + 23T^{2} \)
29 \( 1 + 3.17T + 29T^{2} \)
31 \( 1 - 2.24T + 31T^{2} \)
37 \( 1 + 4T + 37T^{2} \)
41 \( 1 - 8.82T + 41T^{2} \)
43 \( 1 + 10.4T + 43T^{2} \)
47 \( 1 - 6.17T + 47T^{2} \)
53 \( 1 + 13.4T + 53T^{2} \)
59 \( 1 + 10.2T + 59T^{2} \)
61 \( 1 + 11.4T + 61T^{2} \)
67 \( 1 + 2T + 67T^{2} \)
71 \( 1 + 13.0T + 71T^{2} \)
73 \( 1 - 3T + 73T^{2} \)
79 \( 1 - 3.75T + 79T^{2} \)
83 \( 1 - 5.48T + 83T^{2} \)
89 \( 1 + 6T + 89T^{2} \)
97 \( 1 + 6.24T + 97T^{2} \)
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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

−9.576229216755299219097243294837, −9.174929210387777506839028358619, −8.020440537816109065096975884640, −7.19521945446001374980781331492, −6.18975487041614246394805611945, −5.31088588791832216342589815201, −4.68938215284922988322314899467, −2.77550211802453478616425428304, −1.53966979131045671703248730355, 0, 1.53966979131045671703248730355, 2.77550211802453478616425428304, 4.68938215284922988322314899467, 5.31088588791832216342589815201, 6.18975487041614246394805611945, 7.19521945446001374980781331492, 8.020440537816109065096975884640, 9.174929210387777506839028358619, 9.576229216755299219097243294837

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