Properties

Label 2-931-1.1-c1-0-41
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  + 1.94·2-s + 2.74·3-s + 1.76·4-s − 0.683·5-s + 5.32·6-s − 0.456·8-s + 4.52·9-s − 1.32·10-s + 0.192·11-s + 4.83·12-s + 6.05·13-s − 1.87·15-s − 4.41·16-s − 1.81·17-s + 8.77·18-s + 19-s − 1.20·20-s + 0.373·22-s + 2.34·23-s − 1.25·24-s − 4.53·25-s + 11.7·26-s + 4.17·27-s − 4.90·29-s − 3.63·30-s + 4.62·31-s − 7.65·32-s + ⋯
L(s)  = 1  + 1.37·2-s + 1.58·3-s + 0.882·4-s − 0.305·5-s + 2.17·6-s − 0.161·8-s + 1.50·9-s − 0.419·10-s + 0.0580·11-s + 1.39·12-s + 1.67·13-s − 0.483·15-s − 1.10·16-s − 0.439·17-s + 2.06·18-s + 0.229·19-s − 0.269·20-s + 0.0795·22-s + 0.487·23-s − 0.255·24-s − 0.906·25-s + 2.30·26-s + 0.802·27-s − 0.910·29-s − 0.664·30-s + 0.830·31-s − 1.35·32-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

\(L(1)\) \(\approx\) \(4.930536059\)
\(L(\frac12)\) \(\approx\) \(4.930536059\)
\(L(\frac{3}{2})\) 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 \( 1 - 1.94T + 2T^{2} \)
3 \( 1 - 2.74T + 3T^{2} \)
5 \( 1 + 0.683T + 5T^{2} \)
11 \( 1 - 0.192T + 11T^{2} \)
13 \( 1 - 6.05T + 13T^{2} \)
17 \( 1 + 1.81T + 17T^{2} \)
23 \( 1 - 2.34T + 23T^{2} \)
29 \( 1 + 4.90T + 29T^{2} \)
31 \( 1 - 4.62T + 31T^{2} \)
37 \( 1 + 11.2T + 37T^{2} \)
41 \( 1 - 8.35T + 41T^{2} \)
43 \( 1 + 4.32T + 43T^{2} \)
47 \( 1 + 12.3T + 47T^{2} \)
53 \( 1 - 10.1T + 53T^{2} \)
59 \( 1 - 8.32T + 59T^{2} \)
61 \( 1 + 6.04T + 61T^{2} \)
67 \( 1 + 9.96T + 67T^{2} \)
71 \( 1 - 4.43T + 71T^{2} \)
73 \( 1 + 3.53T + 73T^{2} \)
79 \( 1 + 3.94T + 79T^{2} \)
83 \( 1 + 8.38T + 83T^{2} \)
89 \( 1 + 5.73T + 89T^{2} \)
97 \( 1 - 5.29T + 97T^{2} \)
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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

−9.971799897355650938172332487739, −8.907313800821028682934263661796, −8.555987068956880583473467785606, −7.51380352192144952120662203020, −6.56070253766898962171587268970, −5.59034743623176139552298543931, −4.36123191404854325742700046879, −3.66279171638060080550719821702, −3.07765492475641199939382969365, −1.84345601469911651156686421691, 1.84345601469911651156686421691, 3.07765492475641199939382969365, 3.66279171638060080550719821702, 4.36123191404854325742700046879, 5.59034743623176139552298543931, 6.56070253766898962171587268970, 7.51380352192144952120662203020, 8.555987068956880583473467785606, 8.907313800821028682934263661796, 9.971799897355650938172332487739

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