Properties

Label 2-381-1.1-c1-0-20
Degree $2$
Conductor $381$
Sign $-1$
Analytic cond. $3.04230$
Root an. cond. $1.74421$
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  + 1.71·2-s − 3-s + 0.936·4-s − 4.13·5-s − 1.71·6-s + 0.967·7-s − 1.82·8-s + 9-s − 7.08·10-s − 6.54·11-s − 0.936·12-s + 2.28·13-s + 1.65·14-s + 4.13·15-s − 4.99·16-s − 2.37·17-s + 1.71·18-s + 2.94·19-s − 3.87·20-s − 0.967·21-s − 11.2·22-s − 1.52·23-s + 1.82·24-s + 12.0·25-s + 3.91·26-s − 27-s + 0.906·28-s + ⋯
L(s)  = 1  + 1.21·2-s − 0.577·3-s + 0.468·4-s − 1.84·5-s − 0.699·6-s + 0.365·7-s − 0.644·8-s + 0.333·9-s − 2.24·10-s − 1.97·11-s − 0.270·12-s + 0.632·13-s + 0.443·14-s + 1.06·15-s − 1.24·16-s − 0.576·17-s + 0.403·18-s + 0.674·19-s − 0.866·20-s − 0.211·21-s − 2.39·22-s − 0.317·23-s + 0.371·24-s + 2.41·25-s + 0.767·26-s − 0.192·27-s + 0.171·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 381 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 381 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(381\)    =    \(3 \cdot 127\)
Sign: $-1$
Analytic conductor: \(3.04230\)
Root analytic conductor: \(1.74421\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 381,\ (\ :1/2),\ -1)\)

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)$
bad3 \( 1 + T \)
127 \( 1 + T \)
good2 \( 1 - 1.71T + 2T^{2} \)
5 \( 1 + 4.13T + 5T^{2} \)
7 \( 1 - 0.967T + 7T^{2} \)
11 \( 1 + 6.54T + 11T^{2} \)
13 \( 1 - 2.28T + 13T^{2} \)
17 \( 1 + 2.37T + 17T^{2} \)
19 \( 1 - 2.94T + 19T^{2} \)
23 \( 1 + 1.52T + 23T^{2} \)
29 \( 1 - 2.59T + 29T^{2} \)
31 \( 1 + 4.67T + 31T^{2} \)
37 \( 1 + 9.81T + 37T^{2} \)
41 \( 1 - 4.37T + 41T^{2} \)
43 \( 1 - 1.55T + 43T^{2} \)
47 \( 1 - 11.3T + 47T^{2} \)
53 \( 1 + 4.24T + 53T^{2} \)
59 \( 1 - 3.66T + 59T^{2} \)
61 \( 1 + 0.791T + 61T^{2} \)
67 \( 1 + 14.3T + 67T^{2} \)
71 \( 1 - 6.43T + 71T^{2} \)
73 \( 1 + 3.78T + 73T^{2} \)
79 \( 1 + 14.7T + 79T^{2} \)
83 \( 1 + 3.28T + 83T^{2} \)
89 \( 1 + 7.18T + 89T^{2} \)
97 \( 1 - 12.1T + 97T^{2} \)
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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

−11.16180428303573038224507577517, −10.55377371901416929093408841397, −8.789666520429239281463038806206, −7.87961542583986394501519462937, −7.07187014920186412227047950691, −5.64916929760519503679072174404, −4.85681173389904397463110875212, −4.02655611392867995851540816621, −2.96600652691672338147029552614, 0, 2.96600652691672338147029552614, 4.02655611392867995851540816621, 4.85681173389904397463110875212, 5.64916929760519503679072174404, 7.07187014920186412227047950691, 7.87961542583986394501519462937, 8.789666520429239281463038806206, 10.55377371901416929093408841397, 11.16180428303573038224507577517

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