Properties

Label 2-26-1.1-c5-0-3
Degree $2$
Conductor $26$
Sign $1$
Analytic cond. $4.16997$
Root an. cond. $2.04205$
Motivic weight $5$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 4·2-s + 19.0·3-s + 16·4-s − 7.20·5-s + 76.2·6-s − 53.6·7-s + 64·8-s + 120.·9-s − 28.8·10-s + 239.·11-s + 305.·12-s − 169·13-s − 214.·14-s − 137.·15-s + 256·16-s − 1.97e3·17-s + 482.·18-s − 373.·19-s − 115.·20-s − 1.02e3·21-s + 958.·22-s + 51.4·23-s + 1.22e3·24-s − 3.07e3·25-s − 676·26-s − 2.33e3·27-s − 857.·28-s + ⋯
L(s)  = 1  + 0.707·2-s + 1.22·3-s + 0.5·4-s − 0.128·5-s + 0.864·6-s − 0.413·7-s + 0.353·8-s + 0.496·9-s − 0.0911·10-s + 0.597·11-s + 0.611·12-s − 0.277·13-s − 0.292·14-s − 0.157·15-s + 0.250·16-s − 1.65·17-s + 0.350·18-s − 0.237·19-s − 0.0644·20-s − 0.505·21-s + 0.422·22-s + 0.0202·23-s + 0.432·24-s − 0.983·25-s − 0.196·26-s − 0.616·27-s − 0.206·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 26 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(6-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 26 ^{s/2} \, \Gamma_{\C}(s+5/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(26\)    =    \(2 \cdot 13\)
Sign: $1$
Analytic conductor: \(4.16997\)
Root analytic conductor: \(2.04205\)
Motivic weight: \(5\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 26,\ (\ :5/2),\ 1)\)

Particular Values

\(L(3)\) \(\approx\) \(2.774880167\)
\(L(\frac12)\) \(\approx\) \(2.774880167\)
\(L(\frac{7}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - 4T \)
13 \( 1 + 169T \)
good3 \( 1 - 19.0T + 243T^{2} \)
5 \( 1 + 7.20T + 3.12e3T^{2} \)
7 \( 1 + 53.6T + 1.68e4T^{2} \)
11 \( 1 - 239.T + 1.61e5T^{2} \)
17 \( 1 + 1.97e3T + 1.41e6T^{2} \)
19 \( 1 + 373.T + 2.47e6T^{2} \)
23 \( 1 - 51.4T + 6.43e6T^{2} \)
29 \( 1 - 4.79e3T + 2.05e7T^{2} \)
31 \( 1 - 6.90e3T + 2.86e7T^{2} \)
37 \( 1 - 1.14e4T + 6.93e7T^{2} \)
41 \( 1 - 1.25e4T + 1.15e8T^{2} \)
43 \( 1 - 1.15e3T + 1.47e8T^{2} \)
47 \( 1 + 1.86e4T + 2.29e8T^{2} \)
53 \( 1 - 9.31e3T + 4.18e8T^{2} \)
59 \( 1 + 5.06e3T + 7.14e8T^{2} \)
61 \( 1 - 5.42e4T + 8.44e8T^{2} \)
67 \( 1 - 4.02e4T + 1.35e9T^{2} \)
71 \( 1 + 6.52e4T + 1.80e9T^{2} \)
73 \( 1 - 6.85e4T + 2.07e9T^{2} \)
79 \( 1 - 1.06e4T + 3.07e9T^{2} \)
83 \( 1 + 2.35e3T + 3.93e9T^{2} \)
89 \( 1 + 9.36e4T + 5.58e9T^{2} \)
97 \( 1 + 3.11e4T + 8.58e9T^{2} \)
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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

−15.95103027360583875772429883497, −14.96625483007129307391014044730, −13.94072404089799965739505584817, −12.99139502186376200844389745737, −11.46156167152171366789830604601, −9.610055249400192744031544780096, −8.229247391209956270999781472236, −6.54440263614700288038264891485, −4.18187615851047687427026452248, −2.55064058072973037014890620831, 2.55064058072973037014890620831, 4.18187615851047687427026452248, 6.54440263614700288038264891485, 8.229247391209956270999781472236, 9.610055249400192744031544780096, 11.46156167152171366789830604601, 12.99139502186376200844389745737, 13.94072404089799965739505584817, 14.96625483007129307391014044730, 15.95103027360583875772429883497

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