Properties

Label 2-931-1.1-c1-0-32
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 $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 0.751·2-s + 2.33·3-s − 1.43·4-s + 4.26·5-s − 1.75·6-s + 2.58·8-s + 2.43·9-s − 3.20·10-s + 4.09·11-s − 3.34·12-s − 2.18·13-s + 9.94·15-s + 0.933·16-s + 0.590·17-s − 1.82·18-s − 19-s − 6.12·20-s − 3.07·22-s − 4.36·23-s + 6.01·24-s + 13.1·25-s + 1.64·26-s − 1.31·27-s − 7.36·29-s − 7.46·30-s + 4.51·31-s − 5.86·32-s + ⋯
L(s)  = 1  − 0.531·2-s + 1.34·3-s − 0.717·4-s + 1.90·5-s − 0.714·6-s + 0.912·8-s + 0.811·9-s − 1.01·10-s + 1.23·11-s − 0.966·12-s − 0.606·13-s + 2.56·15-s + 0.233·16-s + 0.143·17-s − 0.431·18-s − 0.229·19-s − 1.36·20-s − 0.656·22-s − 0.911·23-s + 1.22·24-s + 2.63·25-s + 0.322·26-s − 0.253·27-s − 1.36·29-s − 1.36·30-s + 0.811·31-s − 1.03·32-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: \(0\)
Selberg data: \((2,\ 931,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.279112326\)
\(L(\frac12)\) \(\approx\) \(2.279112326\)
\(L(\frac{3}{2})\) 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 \( 1 + 0.751T + 2T^{2} \)
3 \( 1 - 2.33T + 3T^{2} \)
5 \( 1 - 4.26T + 5T^{2} \)
11 \( 1 - 4.09T + 11T^{2} \)
13 \( 1 + 2.18T + 13T^{2} \)
17 \( 1 - 0.590T + 17T^{2} \)
23 \( 1 + 4.36T + 23T^{2} \)
29 \( 1 + 7.36T + 29T^{2} \)
31 \( 1 - 4.51T + 31T^{2} \)
37 \( 1 - 8.95T + 37T^{2} \)
41 \( 1 + 2.17T + 41T^{2} \)
43 \( 1 + 8.69T + 43T^{2} \)
47 \( 1 + 11.8T + 47T^{2} \)
53 \( 1 - 4.40T + 53T^{2} \)
59 \( 1 - 10.7T + 59T^{2} \)
61 \( 1 + 2.43T + 61T^{2} \)
67 \( 1 + 5.65T + 67T^{2} \)
71 \( 1 - 8.32T + 71T^{2} \)
73 \( 1 + 10.6T + 73T^{2} \)
79 \( 1 - 8.56T + 79T^{2} \)
83 \( 1 + 4.25T + 83T^{2} \)
89 \( 1 - 3.79T + 89T^{2} \)
97 \( 1 - 2.11T + 97T^{2} \)
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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

−9.771347311326652050871311684902, −9.299279976632720186461755706697, −8.684865800503177075821312143817, −7.88041095356055227509387985460, −6.73981821717403209949099307269, −5.79424059970107611880871651829, −4.70027749766782318089513678246, −3.56846096220388024907985869952, −2.28848590950889300415816273341, −1.48991594971378200226454616630, 1.48991594971378200226454616630, 2.28848590950889300415816273341, 3.56846096220388024907985869952, 4.70027749766782318089513678246, 5.79424059970107611880871651829, 6.73981821717403209949099307269, 7.88041095356055227509387985460, 8.684865800503177075821312143817, 9.299279976632720186461755706697, 9.771347311326652050871311684902

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