Properties

Label 2-381-1.1-c1-0-3
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  − 1.92·2-s + 3-s + 1.71·4-s − 1.15·5-s − 1.92·6-s + 2.35·7-s + 0.546·8-s + 9-s + 2.23·10-s − 3.69·11-s + 1.71·12-s + 1.22·13-s − 4.54·14-s − 1.15·15-s − 4.48·16-s + 4.29·17-s − 1.92·18-s + 6.29·19-s − 1.98·20-s + 2.35·21-s + 7.12·22-s + 0.829·23-s + 0.546·24-s − 3.65·25-s − 2.36·26-s + 27-s + 4.04·28-s + ⋯
L(s)  = 1  − 1.36·2-s + 0.577·3-s + 0.858·4-s − 0.518·5-s − 0.787·6-s + 0.891·7-s + 0.193·8-s + 0.333·9-s + 0.706·10-s − 1.11·11-s + 0.495·12-s + 0.340·13-s − 1.21·14-s − 0.299·15-s − 1.12·16-s + 1.04·17-s − 0.454·18-s + 1.44·19-s − 0.444·20-s + 0.514·21-s + 1.51·22-s + 0.172·23-s + 0.111·24-s − 0.731·25-s − 0.464·26-s + 0.192·27-s + 0.764·28-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

\(L(1)\) \(\approx\) \(0.8341464060\)
\(L(\frac12)\) \(\approx\) \(0.8341464060\)
\(L(\frac{3}{2})\) 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 \( 1 + 1.92T + 2T^{2} \)
5 \( 1 + 1.15T + 5T^{2} \)
7 \( 1 - 2.35T + 7T^{2} \)
11 \( 1 + 3.69T + 11T^{2} \)
13 \( 1 - 1.22T + 13T^{2} \)
17 \( 1 - 4.29T + 17T^{2} \)
19 \( 1 - 6.29T + 19T^{2} \)
23 \( 1 - 0.829T + 23T^{2} \)
29 \( 1 - 0.0257T + 29T^{2} \)
31 \( 1 - 3.97T + 31T^{2} \)
37 \( 1 - 6.32T + 37T^{2} \)
41 \( 1 - 7.01T + 41T^{2} \)
43 \( 1 - 9.18T + 43T^{2} \)
47 \( 1 - 1.73T + 47T^{2} \)
53 \( 1 - 0.855T + 53T^{2} \)
59 \( 1 - 4.83T + 59T^{2} \)
61 \( 1 - 10.6T + 61T^{2} \)
67 \( 1 + 10.8T + 67T^{2} \)
71 \( 1 + 8.30T + 71T^{2} \)
73 \( 1 + 8.90T + 73T^{2} \)
79 \( 1 + 10.2T + 79T^{2} \)
83 \( 1 + 5.80T + 83T^{2} \)
89 \( 1 - 8.02T + 89T^{2} \)
97 \( 1 + 6.48T + 97T^{2} \)
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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

−11.12159271889555851324507399397, −10.21373028932040491683564271617, −9.479859996825634546124439008352, −8.445426444072275856243687150853, −7.74863681525000756330308501124, −7.44275839856663937780346138245, −5.56623288664282397921299935554, −4.29404972032493824816293662661, −2.72762784185457422174073352903, −1.15110226805197926156325425972, 1.15110226805197926156325425972, 2.72762784185457422174073352903, 4.29404972032493824816293662661, 5.56623288664282397921299935554, 7.44275839856663937780346138245, 7.74863681525000756330308501124, 8.445426444072275856243687150853, 9.479859996825634546124439008352, 10.21373028932040491683564271617, 11.12159271889555851324507399397

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