Properties

Label 2-381-1.1-c1-0-15
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 $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2.14·2-s + 3-s + 2.61·4-s + 0.492·5-s + 2.14·6-s − 0.251·7-s + 1.32·8-s + 9-s + 1.05·10-s − 3.24·11-s + 2.61·12-s + 4.64·13-s − 0.539·14-s + 0.492·15-s − 2.38·16-s − 3.90·17-s + 2.14·18-s − 1.90·19-s + 1.28·20-s − 0.251·21-s − 6.97·22-s + 8.28·23-s + 1.32·24-s − 4.75·25-s + 9.99·26-s + 27-s − 0.657·28-s + ⋯
L(s)  = 1  + 1.51·2-s + 0.577·3-s + 1.30·4-s + 0.220·5-s + 0.877·6-s − 0.0949·7-s + 0.469·8-s + 0.333·9-s + 0.334·10-s − 0.978·11-s + 0.755·12-s + 1.28·13-s − 0.144·14-s + 0.127·15-s − 0.595·16-s − 0.947·17-s + 0.506·18-s − 0.437·19-s + 0.288·20-s − 0.0548·21-s − 1.48·22-s + 1.72·23-s + 0.271·24-s − 0.951·25-s + 1.95·26-s + 0.192·27-s − 0.124·28-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: \(0\)
Selberg data: \((2,\ 381,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(3.374520288\)
\(L(\frac12)\) \(\approx\) \(3.374520288\)
\(L(\frac{3}{2})\) 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 \( 1 - 2.14T + 2T^{2} \)
5 \( 1 - 0.492T + 5T^{2} \)
7 \( 1 + 0.251T + 7T^{2} \)
11 \( 1 + 3.24T + 11T^{2} \)
13 \( 1 - 4.64T + 13T^{2} \)
17 \( 1 + 3.90T + 17T^{2} \)
19 \( 1 + 1.90T + 19T^{2} \)
23 \( 1 - 8.28T + 23T^{2} \)
29 \( 1 + 9.34T + 29T^{2} \)
31 \( 1 + 0.920T + 31T^{2} \)
37 \( 1 - 8.55T + 37T^{2} \)
41 \( 1 + 2.98T + 41T^{2} \)
43 \( 1 - 1.41T + 43T^{2} \)
47 \( 1 - 7.43T + 47T^{2} \)
53 \( 1 + 1.05T + 53T^{2} \)
59 \( 1 - 6.89T + 59T^{2} \)
61 \( 1 + 5.54T + 61T^{2} \)
67 \( 1 - 9.13T + 67T^{2} \)
71 \( 1 + 4.84T + 71T^{2} \)
73 \( 1 - 8.54T + 73T^{2} \)
79 \( 1 - 2.23T + 79T^{2} \)
83 \( 1 + 10.2T + 83T^{2} \)
89 \( 1 + 3.28T + 89T^{2} \)
97 \( 1 - 4.95T + 97T^{2} \)
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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

−11.33931077486783160899096307794, −10.88743115050040352766973347156, −9.457778550213393612526371250126, −8.571483139430226575536850318508, −7.35643992949541726598146729718, −6.29083556668186871853295422833, −5.40803480449463684867413455758, −4.29470198996041733446677891896, −3.32946799372827516103099625928, −2.20638230963401454952380653548, 2.20638230963401454952380653548, 3.32946799372827516103099625928, 4.29470198996041733446677891896, 5.40803480449463684867413455758, 6.29083556668186871853295422833, 7.35643992949541726598146729718, 8.571483139430226575536850318508, 9.457778550213393612526371250126, 10.88743115050040352766973347156, 11.33931077486783160899096307794

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