Properties

Label 2-2e3-1.1-c21-0-1
Degree $2$
Conductor $8$
Sign $1$
Analytic cond. $22.3581$
Root an. cond. $4.72844$
Motivic weight $21$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 7.98e3·3-s + 3.09e7·5-s + 9.17e7·7-s − 1.03e10·9-s + 8.72e10·11-s − 2.36e11·13-s − 2.47e11·15-s + 7.42e12·17-s + 4.68e9·19-s − 7.32e11·21-s + 3.33e14·23-s + 4.82e14·25-s + 1.66e14·27-s + 3.23e15·29-s + 6.40e15·31-s − 6.96e14·33-s + 2.84e15·35-s − 1.61e16·37-s + 1.89e15·39-s − 5.77e16·41-s − 2.01e17·43-s − 3.22e17·45-s + 6.62e17·47-s − 5.50e17·49-s − 5.92e16·51-s + 4.62e17·53-s + 2.70e18·55-s + ⋯
L(s)  = 1  − 0.0780·3-s + 1.41·5-s + 0.122·7-s − 0.993·9-s + 1.01·11-s − 0.476·13-s − 0.110·15-s + 0.893·17-s + 0.000175·19-s − 0.00958·21-s + 1.67·23-s + 1.01·25-s + 0.155·27-s + 1.43·29-s + 1.40·31-s − 0.0791·33-s + 0.174·35-s − 0.550·37-s + 0.0371·39-s − 0.671·41-s − 1.42·43-s − 1.40·45-s + 1.83·47-s − 0.984·49-s − 0.0697·51-s + 0.363·53-s + 1.43·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(22-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 8 ^{s/2} \, \Gamma_{\C}(s+21/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(8\)    =    \(2^{3}\)
Sign: $1$
Analytic conductor: \(22.3581\)
Root analytic conductor: \(4.72844\)
Motivic weight: \(21\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 8,\ (\ :21/2),\ 1)\)

Particular Values

\(L(11)\) \(\approx\) \(2.486027196\)
\(L(\frac12)\) \(\approx\) \(2.486027196\)
\(L(\frac{23}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
good3 \( 1 + 7.98e3T + 1.04e10T^{2} \)
5 \( 1 - 3.09e7T + 4.76e14T^{2} \)
7 \( 1 - 9.17e7T + 5.58e17T^{2} \)
11 \( 1 - 8.72e10T + 7.40e21T^{2} \)
13 \( 1 + 2.36e11T + 2.47e23T^{2} \)
17 \( 1 - 7.42e12T + 6.90e25T^{2} \)
19 \( 1 - 4.68e9T + 7.14e26T^{2} \)
23 \( 1 - 3.33e14T + 3.94e28T^{2} \)
29 \( 1 - 3.23e15T + 5.13e30T^{2} \)
31 \( 1 - 6.40e15T + 2.08e31T^{2} \)
37 \( 1 + 1.61e16T + 8.55e32T^{2} \)
41 \( 1 + 5.77e16T + 7.38e33T^{2} \)
43 \( 1 + 2.01e17T + 2.00e34T^{2} \)
47 \( 1 - 6.62e17T + 1.30e35T^{2} \)
53 \( 1 - 4.62e17T + 1.62e36T^{2} \)
59 \( 1 - 7.39e18T + 1.54e37T^{2} \)
61 \( 1 + 5.50e18T + 3.10e37T^{2} \)
67 \( 1 - 6.03e18T + 2.22e38T^{2} \)
71 \( 1 + 4.43e19T + 7.52e38T^{2} \)
73 \( 1 + 2.48e19T + 1.34e39T^{2} \)
79 \( 1 - 5.70e19T + 7.08e39T^{2} \)
83 \( 1 + 1.31e20T + 1.99e40T^{2} \)
89 \( 1 - 3.97e20T + 8.65e40T^{2} \)
97 \( 1 + 9.80e20T + 5.27e41T^{2} \)
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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

−16.91855361760117672963155216361, −14.66075991442602956618065152803, −13.67593589619787191351571327697, −11.90489149447685943208162220395, −10.13960479246338581818465817597, −8.801034249725583513929749864473, −6.53324167243125699533864651688, −5.20068275431334016419524053049, −2.81308616109381687708896673872, −1.17498568958073832019375028017, 1.17498568958073832019375028017, 2.81308616109381687708896673872, 5.20068275431334016419524053049, 6.53324167243125699533864651688, 8.801034249725583513929749864473, 10.13960479246338581818465817597, 11.90489149447685943208162220395, 13.67593589619787191351571327697, 14.66075991442602956618065152803, 16.91855361760117672963155216361

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