Properties

Label 2-931-1.1-c1-0-17
Degree $2$
Conductor $931$
Sign $1$
Analytic cond. $7.43407$
Root an. cond. $2.72654$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·3-s − 2·4-s − 3·5-s + 9-s + 3·11-s − 4·12-s + 4·13-s − 6·15-s + 4·16-s + 3·17-s − 19-s + 6·20-s + 4·25-s − 4·27-s + 6·29-s + 4·31-s + 6·33-s − 2·36-s + 2·37-s + 8·39-s + 6·41-s − 43-s − 6·44-s − 3·45-s + 3·47-s + 8·48-s + 6·51-s + ⋯
L(s)  = 1  + 1.15·3-s − 4-s − 1.34·5-s + 1/3·9-s + 0.904·11-s − 1.15·12-s + 1.10·13-s − 1.54·15-s + 16-s + 0.727·17-s − 0.229·19-s + 1.34·20-s + 4/5·25-s − 0.769·27-s + 1.11·29-s + 0.718·31-s + 1.04·33-s − 1/3·36-s + 0.328·37-s + 1.28·39-s + 0.937·41-s − 0.152·43-s − 0.904·44-s − 0.447·45-s + 0.437·47-s + 1.15·48-s + 0.840·51-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: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 931,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.559894300\)
\(L(\frac12)\) \(\approx\) \(1.559894300\)
\(L(\frac{3}{2})\) 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 \( 1 + p T^{2} \)
3 \( 1 - 2 T + p T^{2} \)
5 \( 1 + 3 T + p T^{2} \)
11 \( 1 - 3 T + p T^{2} \)
13 \( 1 - 4 T + p T^{2} \)
17 \( 1 - 3 T + p T^{2} \)
23 \( 1 + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 - 4 T + p T^{2} \)
37 \( 1 - 2 T + p T^{2} \)
41 \( 1 - 6 T + p T^{2} \)
43 \( 1 + T + p T^{2} \)
47 \( 1 - 3 T + p T^{2} \)
53 \( 1 - 12 T + p T^{2} \)
59 \( 1 - 6 T + p T^{2} \)
61 \( 1 - T + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 - 6 T + p T^{2} \)
73 \( 1 - 7 T + p T^{2} \)
79 \( 1 - 8 T + p T^{2} \)
83 \( 1 + 12 T + p T^{2} \)
89 \( 1 + 12 T + p T^{2} \)
97 \( 1 + 8 T + p T^{2} \)
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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

−9.773454048311221733670015344255, −9.016326316893545637066132714015, −8.263027957978573626933432932127, −8.077715259365695641127152270117, −6.88766610803394496528527618774, −5.63748710284752228673506815622, −4.18976040195982393758597830087, −3.89473302068219023186066736123, −2.94620381926703000046884743581, −0.997604860460902876433339628282, 0.997604860460902876433339628282, 2.94620381926703000046884743581, 3.89473302068219023186066736123, 4.18976040195982393758597830087, 5.63748710284752228673506815622, 6.88766610803394496528527618774, 8.077715259365695641127152270117, 8.263027957978573626933432932127, 9.016326316893545637066132714015, 9.773454048311221733670015344255

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