Properties

Label 4-15680-1.1-c1e2-0-1
Degree $4$
Conductor $15680$
Sign $1$
Analytic cond. $0.999770$
Root an. cond. $0.999942$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2-s − 4-s + 2·5-s + 3·7-s − 3·8-s − 3·9-s + 2·10-s + 11-s + 3·13-s + 3·14-s − 16-s − 3·18-s − 2·20-s + 22-s + 2·25-s + 3·26-s − 3·28-s + 3·31-s + 5·32-s + 6·35-s + 3·36-s − 6·40-s − 12·43-s − 44-s − 6·45-s − 12·47-s + 2·49-s + ⋯
L(s)  = 1  + 0.707·2-s − 1/2·4-s + 0.894·5-s + 1.13·7-s − 1.06·8-s − 9-s + 0.632·10-s + 0.301·11-s + 0.832·13-s + 0.801·14-s − 1/4·16-s − 0.707·18-s − 0.447·20-s + 0.213·22-s + 2/5·25-s + 0.588·26-s − 0.566·28-s + 0.538·31-s + 0.883·32-s + 1.01·35-s + 1/2·36-s − 0.948·40-s − 1.82·43-s − 0.150·44-s − 0.894·45-s − 1.75·47-s + 2/7·49-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s+1/2)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(4\)
Conductor: \(15680\)    =    \(2^{6} \cdot 5 \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(0.999770\)
Root analytic conductor: \(0.999942\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((4,\ 15680,\ (\ :1/2, 1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.564364528\)
\(L(\frac12)\) \(\approx\) \(1.564364528\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$\Gal(F_p)$$F_p(T)$
bad2$C_2$ \( 1 - T + p T^{2} \)
5$C_1$$\times$$C_2$ \( ( 1 + T )( 1 - 3 T + p T^{2} ) \)
7$C_2$ \( 1 - 3 T + p T^{2} \)
good3$C_2^2$ \( 1 + p T^{2} + p^{2} T^{4} \)
11$C_2$$\times$$C_2$ \( ( 1 - 5 T + p T^{2} )( 1 + 4 T + p T^{2} ) \)
13$C_2$$\times$$C_2$ \( ( 1 - 6 T + p T^{2} )( 1 + 3 T + p T^{2} ) \)
17$C_2^2$ \( 1 + 2 T^{2} + p^{2} T^{4} \)
19$C_2^2$ \( 1 - 2 T^{2} + p^{2} T^{4} \)
23$C_2^2$ \( 1 + 27 T^{2} + p^{2} T^{4} \)
29$C_2^2$ \( 1 - 27 T^{2} + p^{2} T^{4} \)
31$C_2$$\times$$C_2$ \( ( 1 - 6 T + p T^{2} )( 1 + 3 T + p T^{2} ) \)
37$C_2^2$ \( 1 - 34 T^{2} + p^{2} T^{4} \)
41$C_2^2$ \( 1 - T^{2} + p^{2} T^{4} \)
43$C_2$ \( ( 1 + 6 T + p T^{2} )^{2} \)
47$C_2$ \( ( 1 + 6 T + p T^{2} )^{2} \)
53$C_2^2$ \( 1 + 24 T^{2} + p^{2} T^{4} \)
59$C_2^2$ \( 1 + 80 T^{2} + p^{2} T^{4} \)
61$C_2$ \( ( 1 + p T^{2} )^{2} \)
67$C_2$ \( ( 1 + 5 T + p T^{2} )^{2} \)
71$C_2^2$ \( 1 + 84 T^{2} + p^{2} T^{4} \)
73$C_2^2$ \( 1 + 16 T^{2} + p^{2} T^{4} \)
79$C_2^2$ \( 1 - 68 T^{2} + p^{2} T^{4} \)
83$C_2^2$ \( 1 - 103 T^{2} + p^{2} T^{4} \)
89$C_2^2$ \( 1 - 97 T^{2} + p^{2} T^{4} \)
97$C_2^2$ \( 1 + 166 T^{2} + p^{2} T^{4} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{4} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−11.29018342027031247163198659167, −10.59108746600224542497941176388, −10.01990235037557200090829106817, −9.380205880740515291188750413260, −8.866487127923862992769879045338, −8.307653760889788843377949938744, −8.056248543667434837627800020752, −6.88480246084110664183288432293, −6.19136463312070460860119042769, −5.80344882888245973012737017581, −5.05202822379673736476693870517, −4.68177149673329685613825793712, −3.66003826158809657674050062347, −2.89689599451033385628864859966, −1.65288184070394826328171488252, 1.65288184070394826328171488252, 2.89689599451033385628864859966, 3.66003826158809657674050062347, 4.68177149673329685613825793712, 5.05202822379673736476693870517, 5.80344882888245973012737017581, 6.19136463312070460860119042769, 6.88480246084110664183288432293, 8.056248543667434837627800020752, 8.307653760889788843377949938744, 8.866487127923862992769879045338, 9.380205880740515291188750413260, 10.01990235037557200090829106817, 10.59108746600224542497941176388, 11.29018342027031247163198659167

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