Properties

Label 2-2-1.1-c15-0-0
Degree $2$
Conductor $2$
Sign $1$
Analytic cond. $2.85387$
Root an. cond. $1.68934$
Motivic weight $15$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 128·2-s + 6.25e3·3-s + 1.63e4·4-s + 9.05e4·5-s − 8.00e5·6-s + 56·7-s − 2.09e6·8-s + 2.47e7·9-s − 1.15e7·10-s − 9.58e7·11-s + 1.02e8·12-s − 5.97e7·13-s − 7.16e3·14-s + 5.65e8·15-s + 2.68e8·16-s − 1.35e9·17-s − 3.16e9·18-s + 3.78e9·19-s + 1.48e9·20-s + 3.50e5·21-s + 1.22e10·22-s − 1.16e10·23-s − 1.31e10·24-s − 2.23e10·25-s + 7.65e9·26-s + 6.49e10·27-s + 9.17e5·28-s + ⋯
L(s)  = 1  − 0.707·2-s + 1.65·3-s + 1/2·4-s + 0.518·5-s − 1.16·6-s + 2.57e−5·7-s − 0.353·8-s + 1.72·9-s − 0.366·10-s − 1.48·11-s + 0.825·12-s − 0.264·13-s − 1.81e − 5·14-s + 0.855·15-s + 1/4·16-s − 0.801·17-s − 1.21·18-s + 0.971·19-s + 0.259·20-s + 4.24e−5·21-s + 1.04·22-s − 0.710·23-s − 0.583·24-s − 0.731·25-s + 0.186·26-s + 1.19·27-s + 1.28e−5·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(16-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2 ^{s/2} \, \Gamma_{\C}(s+15/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2\)
Sign: $1$
Analytic conductor: \(2.85387\)
Root analytic conductor: \(1.68934\)
Motivic weight: \(15\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 2,\ (\ :15/2),\ 1)\)

Particular Values

\(L(8)\) \(\approx\) \(1.587012327\)
\(L(\frac12)\) \(\approx\) \(1.587012327\)
\(L(\frac{17}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 + p^{7} T \)
good3 \( 1 - 2084 p T + p^{15} T^{2} \)
5 \( 1 - 18102 p T + p^{15} T^{2} \)
7 \( 1 - 8 p T + p^{15} T^{2} \)
11 \( 1 + 8717268 p T + p^{15} T^{2} \)
13 \( 1 + 4598626 p T + p^{15} T^{2} \)
17 \( 1 + 1355814414 T + p^{15} T^{2} \)
19 \( 1 - 3783593180 T + p^{15} T^{2} \)
23 \( 1 + 11608845528 T + p^{15} T^{2} \)
29 \( 1 + 28959105930 T + p^{15} T^{2} \)
31 \( 1 - 253685353952 T + p^{15} T^{2} \)
37 \( 1 - 817641294446 T + p^{15} T^{2} \)
41 \( 1 + 682333284198 T + p^{15} T^{2} \)
43 \( 1 - 366945604292 T + p^{15} T^{2} \)
47 \( 1 - 695741581776 T + p^{15} T^{2} \)
53 \( 1 - 12993372468702 T + p^{15} T^{2} \)
59 \( 1 - 9209035340340 T + p^{15} T^{2} \)
61 \( 1 + 42338641200298 T + p^{15} T^{2} \)
67 \( 1 - 448205790308 p T + p^{15} T^{2} \)
71 \( 1 - 115328696975352 T + p^{15} T^{2} \)
73 \( 1 - 43787346432122 T + p^{15} T^{2} \)
79 \( 1 - 79603813043120 T + p^{15} T^{2} \)
83 \( 1 + 41169504396 p T + p^{15} T^{2} \)
89 \( 1 + 377306179184790 T + p^{15} T^{2} \)
97 \( 1 + 166982186657374 T + p^{15} T^{2} \)
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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

−25.83117149990681454559790334407, −24.48097473478529413706471604294, −21.17191688047427193508206393055, −19.90062779532852423845568969370, −18.24844284306451722015219223173, −15.53026690553986756643815908766, −13.57061987223004458172056352561, −9.784836001229647868060622000318, −7.968200627961192223323030297538, −2.45695551072562092773549895952, 2.45695551072562092773549895952, 7.968200627961192223323030297538, 9.784836001229647868060622000318, 13.57061987223004458172056352561, 15.53026690553986756643815908766, 18.24844284306451722015219223173, 19.90062779532852423845568969370, 21.17191688047427193508206393055, 24.48097473478529413706471604294, 25.83117149990681454559790334407

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