Properties

Label 2-931-1.1-c1-0-35
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  + 1.13·2-s + 2.19·3-s − 0.711·4-s + 1.83·5-s + 2.49·6-s − 3.07·8-s + 1.81·9-s + 2.07·10-s + 4.13·11-s − 1.56·12-s + 4.73·13-s + 4.01·15-s − 2.07·16-s − 1.16·17-s + 2.06·18-s − 19-s − 1.30·20-s + 4.69·22-s − 0.834·23-s − 6.75·24-s − 1.64·25-s + 5.37·26-s − 2.59·27-s + 3.47·29-s + 4.56·30-s − 7.88·31-s + 3.80·32-s + ⋯
L(s)  = 1  + 0.802·2-s + 1.26·3-s − 0.355·4-s + 0.818·5-s + 1.01·6-s − 1.08·8-s + 0.605·9-s + 0.657·10-s + 1.24·11-s − 0.450·12-s + 1.31·13-s + 1.03·15-s − 0.517·16-s − 0.283·17-s + 0.485·18-s − 0.229·19-s − 0.291·20-s + 1.00·22-s − 0.174·23-s − 1.37·24-s − 0.329·25-s + 1.05·26-s − 0.500·27-s + 0.645·29-s + 0.832·30-s − 1.41·31-s + 0.672·32-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

\(L(1)\) \(\approx\) \(3.603643295\)
\(L(\frac12)\) \(\approx\) \(3.603643295\)
\(L(\frac{3}{2})\) 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 \( 1 - 1.13T + 2T^{2} \)
3 \( 1 - 2.19T + 3T^{2} \)
5 \( 1 - 1.83T + 5T^{2} \)
11 \( 1 - 4.13T + 11T^{2} \)
13 \( 1 - 4.73T + 13T^{2} \)
17 \( 1 + 1.16T + 17T^{2} \)
23 \( 1 + 0.834T + 23T^{2} \)
29 \( 1 - 3.47T + 29T^{2} \)
31 \( 1 + 7.88T + 31T^{2} \)
37 \( 1 - 9.51T + 37T^{2} \)
41 \( 1 - 2.27T + 41T^{2} \)
43 \( 1 - 8.77T + 43T^{2} \)
47 \( 1 + 4.49T + 47T^{2} \)
53 \( 1 + 7.62T + 53T^{2} \)
59 \( 1 + 3.26T + 59T^{2} \)
61 \( 1 + 7.85T + 61T^{2} \)
67 \( 1 + 11.7T + 67T^{2} \)
71 \( 1 + 8.72T + 71T^{2} \)
73 \( 1 + 7.69T + 73T^{2} \)
79 \( 1 + 6.90T + 79T^{2} \)
83 \( 1 - 15.0T + 83T^{2} \)
89 \( 1 + 3.40T + 89T^{2} \)
97 \( 1 + 3.04T + 97T^{2} \)
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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

−9.675030647299919606686203922943, −9.119308766009262918371270032452, −8.707506405586772519438598603672, −7.66239806589596022311389541001, −6.24921241294238134642608629947, −5.90442200757778733544529048911, −4.42742043288674521271924080101, −3.75874129122996296659290809427, −2.85210426903392303817413297017, −1.59209387417379272426075594376, 1.59209387417379272426075594376, 2.85210426903392303817413297017, 3.75874129122996296659290809427, 4.42742043288674521271924080101, 5.90442200757778733544529048911, 6.24921241294238134642608629947, 7.66239806589596022311389541001, 8.707506405586772519438598603672, 9.119308766009262918371270032452, 9.675030647299919606686203922943

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