Properties

Label 8-3420e4-1.1-c0e4-0-1
Degree $8$
Conductor $1.368\times 10^{14}$
Sign $1$
Analytic cond. $8.48658$
Root an. cond. $1.30644$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive no
Self-dual yes
Analytic rank $0$

Origins

Origins of factors

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Normalization:  

Dirichlet series

L(s)  = 1  − 4·19-s + 25-s − 2·49-s − 4·61-s + 2·121-s + ⋯
L(s)  = 1  − 4·19-s + 25-s − 2·49-s − 4·61-s + 2·121-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut &\left(2^{8} \cdot 3^{8} \cdot 5^{4} \cdot 19^{4}\right)^{s/2} \, \Gamma_{\C}(s)^{4} \, L(s)\cr=\mathstrut & \,\Lambda(1-s)\end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut &\left(2^{8} \cdot 3^{8} \cdot 5^{4} \cdot 19^{4}\right)^{s/2} \, \Gamma_{\C}(s)^{4} \, L(s)\cr=\mathstrut & \,\Lambda(1-s)\end{aligned}\]

Invariants

Degree: \(8\)
Conductor: \(2^{8} \cdot 3^{8} \cdot 5^{4} \cdot 19^{4}\)
Sign: $1$
Analytic conductor: \(8.48658\)
Root analytic conductor: \(1.30644\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: no
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((8,\ 2^{8} \cdot 3^{8} \cdot 5^{4} \cdot 19^{4} ,\ ( \ : 0, 0, 0, 0 ),\ 1 )\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.07268033942\)
\(L(\frac12)\) \(\approx\) \(0.07268033942\)
\(L(1)\) 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 \( 1 \)
3 \( 1 \)
5$C_2^2$ \( 1 - T^{2} + T^{4} \)
19$C_1$ \( ( 1 + T )^{4} \)
good7$C_2$ \( ( 1 - T + T^{2} )^{2}( 1 + T + T^{2} )^{2} \)
11$C_2^2$ \( ( 1 - T^{2} + T^{4} )^{2} \)
13$C_2$ \( ( 1 + T^{2} )^{4} \)
17$C_2^2$ \( ( 1 - T^{2} + T^{4} )^{2} \)
23$C_2$ \( ( 1 + T^{2} )^{4} \)
29$C_1$$\times$$C_1$ \( ( 1 - T )^{4}( 1 + T )^{4} \)
31$C_1$$\times$$C_1$ \( ( 1 - T )^{4}( 1 + T )^{4} \)
37$C_2$ \( ( 1 + T^{2} )^{4} \)
41$C_1$$\times$$C_1$ \( ( 1 - T )^{4}( 1 + T )^{4} \)
43$C_2$ \( ( 1 - T + T^{2} )^{2}( 1 + T + T^{2} )^{2} \)
47$C_2^2$ \( ( 1 - T^{2} + T^{4} )^{2} \)
53$C_2$ \( ( 1 + T^{2} )^{4} \)
59$C_1$$\times$$C_1$ \( ( 1 - T )^{4}( 1 + T )^{4} \)
61$C_2$ \( ( 1 + T + T^{2} )^{4} \)
67$C_2$ \( ( 1 + T^{2} )^{4} \)
71$C_1$$\times$$C_1$ \( ( 1 - T )^{4}( 1 + T )^{4} \)
73$C_2$ \( ( 1 - T + T^{2} )^{2}( 1 + T + T^{2} )^{2} \)
79$C_1$$\times$$C_1$ \( ( 1 - T )^{4}( 1 + T )^{4} \)
83$C_2$ \( ( 1 + T^{2} )^{4} \)
89$C_1$$\times$$C_1$ \( ( 1 - T )^{4}( 1 + T )^{4} \)
97$C_2$ \( ( 1 + T^{2} )^{4} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{8} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−6.20747554361759060445944062565, −6.12026566701793130311273261169, −6.08903252918108283469238454761, −5.81229029049140974111447322922, −5.46186477441198323436163220623, −5.24886438150428821568872851706, −4.98500791008912114212561627853, −4.70487530638938024073793241914, −4.61055035300875020600042858018, −4.60067767604199006078697976827, −4.30987823633769286770132987369, −4.13384569196571870009500822415, −3.71842054118447400633883701456, −3.66739662031616528943532530206, −3.30941705912679492089249100270, −3.20915293388545543579034120039, −2.90843591576453859496728046069, −2.54231239514218998236264174133, −2.33998007041311178944670422504, −2.18697013244615416469418341715, −2.01473288901324119161482277346, −1.46942692113537739013303843640, −1.37710403767382326818834437701, −1.10068458968317322435587862502, −0.097022878858990577197837526510, 0.097022878858990577197837526510, 1.10068458968317322435587862502, 1.37710403767382326818834437701, 1.46942692113537739013303843640, 2.01473288901324119161482277346, 2.18697013244615416469418341715, 2.33998007041311178944670422504, 2.54231239514218998236264174133, 2.90843591576453859496728046069, 3.20915293388545543579034120039, 3.30941705912679492089249100270, 3.66739662031616528943532530206, 3.71842054118447400633883701456, 4.13384569196571870009500822415, 4.30987823633769286770132987369, 4.60067767604199006078697976827, 4.61055035300875020600042858018, 4.70487530638938024073793241914, 4.98500791008912114212561627853, 5.24886438150428821568872851706, 5.46186477441198323436163220623, 5.81229029049140974111447322922, 6.08903252918108283469238454761, 6.12026566701793130311273261169, 6.20747554361759060445944062565

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