Properties

Label 4-2e8-1.1-c6e2-0-0
Degree $4$
Conductor $256$
Sign $1$
Analytic cond. $13.5487$
Root an. cond. $1.91855$
Motivic weight $6$
Arithmetic yes
Rational yes
Primitive no
Self-dual yes
Analytic rank $0$

Origins

Origins of factors

Downloads

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Normalization:  

Dirichlet series

L(s)  = 1  − 300·5-s + 690·9-s + 308·13-s + 1.49e4·17-s + 3.62e4·25-s − 2.15e4·29-s − 2.27e4·37-s + 1.34e5·41-s − 2.07e5·45-s − 1.36e5·49-s + 2.19e5·53-s + 6.13e5·61-s − 9.24e4·65-s + 3.31e5·73-s − 5.53e4·81-s − 4.47e6·85-s + 9.43e5·89-s + 1.82e6·97-s − 1.91e6·101-s − 1.22e5·109-s − 5.63e6·113-s + 2.12e5·117-s + 2.70e6·121-s + 5.62e5·125-s + 127-s + 131-s + 137-s + ⋯
L(s)  = 1  − 2.39·5-s + 0.946·9-s + 0.140·13-s + 3.03·17-s + 2.31·25-s − 0.882·29-s − 0.448·37-s + 1.94·41-s − 2.27·45-s − 1.15·49-s + 1.47·53-s + 2.70·61-s − 0.336·65-s + 0.851·73-s − 0.104·81-s − 7.28·85-s + 1.33·89-s + 1.99·97-s − 1.85·101-s − 0.0943·109-s − 3.90·113-s + 0.132·117-s + 1.52·121-s + 0.287·125-s + 2.11·145-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(7-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s+3)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(4\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $1$
Analytic conductor: \(13.5487\)
Root analytic conductor: \(1.91855\)
Motivic weight: \(6\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: no
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((4,\ 256,\ (\ :3, 3),\ 1)\)

Particular Values

\(L(\frac{7}{2})\) \(\approx\) \(1.186046472\)
\(L(\frac12)\) \(\approx\) \(1.186046472\)
\(L(4)\) 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 \( 1 \)
good3$C_2^2$ \( 1 - 230 p T^{2} + p^{12} T^{4} \)
5$C_2$ \( ( 1 + 6 p^{2} T + p^{6} T^{2} )^{2} \)
7$C_2^2$ \( 1 + 136414 T^{2} + p^{12} T^{4} \)
11$C_2^2$ \( 1 - 22370 p^{2} T^{2} + p^{12} T^{4} \)
13$C_2$ \( ( 1 - 154 T + p^{6} T^{2} )^{2} \)
17$C_2$ \( ( 1 - 7458 T + p^{6} T^{2} )^{2} \)
19$C_2^2$ \( 1 - 89538290 T^{2} + p^{12} T^{4} \)
23$C_2^2$ \( 1 - 224159330 T^{2} + p^{12} T^{4} \)
29$C_2$ \( ( 1 + 10758 T + p^{6} T^{2} )^{2} \)
31$C_2^2$ \( 1 - 1771026050 T^{2} + p^{12} T^{4} \)
37$C_2$ \( ( 1 + 11350 T + p^{6} T^{2} )^{2} \)
41$C_2$ \( ( 1 - 67122 T + p^{6} T^{2} )^{2} \)
43$C_2^2$ \( 1 - 6312377810 T^{2} + p^{12} T^{4} \)
47$C_2^2$ \( 1 - 16727661506 T^{2} + p^{12} T^{4} \)
53$C_2$ \( ( 1 - 109962 T + p^{6} T^{2} )^{2} \)
59$C_2^2$ \( 1 + 9193136110 T^{2} + p^{12} T^{4} \)
61$C_2$ \( ( 1 - 306746 T + p^{6} T^{2} )^{2} \)
67$C_2^2$ \( 1 - 132365032370 T^{2} + p^{12} T^{4} \)
71$C_2^2$ \( 1 - 117597798434 T^{2} + p^{12} T^{4} \)
73$C_2$ \( ( 1 - 165682 T + p^{6} T^{2} )^{2} \)
79$C_2^2$ \( 1 + 94625088958 T^{2} + p^{12} T^{4} \)
83$C_2^2$ \( 1 - 409096407026 T^{2} + p^{12} T^{4} \)
89$C_2$ \( ( 1 - 471954 T + p^{6} T^{2} )^{2} \)
97$C_2$ \( ( 1 - 910594 T + p^{6} T^{2} )^{2} \)
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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

−18.51424336700464162249999718126, −17.39959232044870421331741843064, −16.37880943374602554486244483832, −16.16595701881246663788934097938, −15.61908662502753862843695369547, −14.74744569566762519934132576670, −14.47282453352100109102682289760, −13.11862411773759558586211064186, −12.37193444645476470780455908480, −11.94493948360992662369585241973, −11.31227244744948381628640898034, −10.35053514129421046638436765303, −9.522930745763892907026271656484, −8.119962954048023734856443129214, −7.76478140331783440973976323845, −7.11660492002165880212406947157, −5.45358679998104018047995759692, −4.05193682631012812589353841347, −3.50829100418603698155215549268, −0.837760838626976873922181219140, 0.837760838626976873922181219140, 3.50829100418603698155215549268, 4.05193682631012812589353841347, 5.45358679998104018047995759692, 7.11660492002165880212406947157, 7.76478140331783440973976323845, 8.119962954048023734856443129214, 9.522930745763892907026271656484, 10.35053514129421046638436765303, 11.31227244744948381628640898034, 11.94493948360992662369585241973, 12.37193444645476470780455908480, 13.11862411773759558586211064186, 14.47282453352100109102682289760, 14.74744569566762519934132576670, 15.61908662502753862843695369547, 16.16595701881246663788934097938, 16.37880943374602554486244483832, 17.39959232044870421331741843064, 18.51424336700464162249999718126

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