Properties

Label 2-381-1.1-c1-0-1
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  − 2.75·2-s + 3-s + 5.60·4-s − 3.68·5-s − 2.75·6-s − 3.98·7-s − 9.95·8-s + 9-s + 10.1·10-s + 3.85·11-s + 5.60·12-s − 0.499·13-s + 10.9·14-s − 3.68·15-s + 16.2·16-s + 2.54·17-s − 2.75·18-s + 4.54·19-s − 20.6·20-s − 3.98·21-s − 10.6·22-s + 0.837·23-s − 9.95·24-s + 8.56·25-s + 1.37·26-s + 27-s − 22.3·28-s + ⋯
L(s)  = 1  − 1.95·2-s + 0.577·3-s + 2.80·4-s − 1.64·5-s − 1.12·6-s − 1.50·7-s − 3.51·8-s + 0.333·9-s + 3.21·10-s + 1.16·11-s + 1.61·12-s − 0.138·13-s + 2.93·14-s − 0.950·15-s + 4.06·16-s + 0.616·17-s − 0.650·18-s + 1.04·19-s − 4.61·20-s − 0.870·21-s − 2.26·22-s + 0.174·23-s − 2.03·24-s + 1.71·25-s + 0.270·26-s + 0.192·27-s − 4.22·28-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

\(L(1)\) \(\approx\) \(0.4452563466\)
\(L(\frac12)\) \(\approx\) \(0.4452563466\)
\(L(\frac{3}{2})\) 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 \( 1 + 2.75T + 2T^{2} \)
5 \( 1 + 3.68T + 5T^{2} \)
7 \( 1 + 3.98T + 7T^{2} \)
11 \( 1 - 3.85T + 11T^{2} \)
13 \( 1 + 0.499T + 13T^{2} \)
17 \( 1 - 2.54T + 17T^{2} \)
19 \( 1 - 4.54T + 19T^{2} \)
23 \( 1 - 0.837T + 23T^{2} \)
29 \( 1 - 4.54T + 29T^{2} \)
31 \( 1 + 2.82T + 31T^{2} \)
37 \( 1 - 4.44T + 37T^{2} \)
41 \( 1 - 1.64T + 41T^{2} \)
43 \( 1 + 2.23T + 43T^{2} \)
47 \( 1 - 13.1T + 47T^{2} \)
53 \( 1 - 5.37T + 53T^{2} \)
59 \( 1 + 10.1T + 59T^{2} \)
61 \( 1 + 12.4T + 61T^{2} \)
67 \( 1 - 7.31T + 67T^{2} \)
71 \( 1 - 9.14T + 71T^{2} \)
73 \( 1 - 6.18T + 73T^{2} \)
79 \( 1 - 1.21T + 79T^{2} \)
83 \( 1 + 10.2T + 83T^{2} \)
89 \( 1 + 6.35T + 89T^{2} \)
97 \( 1 - 16.2T + 97T^{2} \)
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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

−11.16134794260284852311766845046, −10.10328379438241521186056314380, −9.344749107783034103036212877562, −8.745883640674849149057160418779, −7.68353972897907549639440645791, −7.18902525986395319668917173148, −6.27188833454677190683342007579, −3.71030179922367059069892526070, −2.94194100969415276793394948844, −0.830038183447751920181193313898, 0.830038183447751920181193313898, 2.94194100969415276793394948844, 3.71030179922367059069892526070, 6.27188833454677190683342007579, 7.18902525986395319668917173148, 7.68353972897907549639440645791, 8.745883640674849149057160418779, 9.344749107783034103036212877562, 10.10328379438241521186056314380, 11.16134794260284852311766845046

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