Properties

Label 2-931-1.1-c1-0-53
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 − 5.82·11-s − 2.24·13-s − 4.00·15-s − 4.00·16-s − 3·17-s − 1.41·18-s + 19-s − 8.24·22-s + 3·23-s + 4·24-s + 3.00·25-s − 3.17·26-s + 5.65·27-s − 8.82·29-s − 5.65·30-s + 6.24·31-s + 8.24·33-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 − 1.75·11-s − 0.621·13-s − 1.03·15-s − 1.00·16-s − 0.727·17-s − 0.333·18-s + 0.229·19-s − 1.75·22-s + 0.625·23-s + 0.816·24-s + 0.600·25-s − 0.621·26-s + 1.08·27-s − 1.63·29-s − 1.03·30-s + 1.12·31-s + 1.43·33-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 \( 1 + 5.82T + 11T^{2} \)
13 \( 1 + 2.24T + 13T^{2} \)
17 \( 1 + 3T + 17T^{2} \)
23 \( 1 - 3T + 23T^{2} \)
29 \( 1 + 8.82T + 29T^{2} \)
31 \( 1 - 6.24T + 31T^{2} \)
37 \( 1 + 4T + 37T^{2} \)
41 \( 1 + 3.17T + 41T^{2} \)
43 \( 1 - 6.48T + 43T^{2} \)
47 \( 1 + 11.8T + 47T^{2} \)
53 \( 1 + 10.5T + 53T^{2} \)
59 \( 1 - 1.75T + 59T^{2} \)
61 \( 1 + 5.48T + 61T^{2} \)
67 \( 1 + 2T + 67T^{2} \)
71 \( 1 - 1.07T + 71T^{2} \)
73 \( 1 + 3T + 73T^{2} \)
79 \( 1 - 12.2T + 79T^{2} \)
83 \( 1 - 11.4T + 83T^{2} \)
89 \( 1 - 6T + 89T^{2} \)
97 \( 1 + 2.24T + 97T^{2} \)
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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

−9.758929877765288341925996942468, −9.002707024834097428696745095338, −7.86969706655354315578557191424, −6.59506173922157937819078387832, −5.88710793671535595941116620584, −5.16501181690527693982270012059, −4.82863110571686897825261355820, −3.13808389595294556486862177065, −2.25339600898672862161937561938, 0, 2.25339600898672862161937561938, 3.13808389595294556486862177065, 4.82863110571686897825261355820, 5.16501181690527693982270012059, 5.88710793671535595941116620584, 6.59506173922157937819078387832, 7.86969706655354315578557191424, 9.002707024834097428696745095338, 9.758929877765288341925996942468

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