Properties

Label 4-2e8-1.1-c13e2-0-0
Degree $4$
Conductor $256$
Sign $1$
Analytic cond. $294.360$
Root an. cond. $4.14209$
Motivic weight $13$
Arithmetic yes
Rational yes
Primitive no
Self-dual yes
Analytic rank $2$

Origins

Origins of factors

Downloads

Learn more

Normalization:  

Dirichlet series

L(s)  = 1  − 872·3-s + 1.84e4·5-s − 1.10e5·7-s + 5.80e5·9-s − 1.64e7·11-s + 1.87e7·13-s − 1.61e7·15-s − 1.53e8·17-s + 1.18e8·19-s + 9.67e7·21-s − 7.18e8·23-s − 1.72e9·25-s − 1.73e9·27-s + 3.09e8·29-s − 5.76e9·31-s + 1.43e10·33-s − 2.04e9·35-s − 1.16e10·37-s − 1.63e10·39-s + 1.31e9·41-s + 2.95e10·43-s + 1.07e10·45-s − 1.23e10·47-s − 2.68e10·49-s + 1.34e11·51-s − 3.80e10·53-s − 3.04e11·55-s + ⋯
L(s)  = 1  − 0.690·3-s + 0.528·5-s − 0.356·7-s + 0.364·9-s − 2.80·11-s + 1.07·13-s − 0.365·15-s − 1.54·17-s + 0.579·19-s + 0.246·21-s − 1.01·23-s − 1.41·25-s − 0.864·27-s + 0.0965·29-s − 1.16·31-s + 1.93·33-s − 0.188·35-s − 0.744·37-s − 0.743·39-s + 0.0431·41-s + 0.713·43-s + 0.192·45-s − 0.166·47-s − 0.277·49-s + 1.06·51-s − 0.235·53-s − 1.48·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(14-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 256 ^{s/2} \, \Gamma_{\C}(s+13/2)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(4\)
Conductor: \(256\)    =    \(2^{8}\)
Sign: $1$
Analytic conductor: \(294.360\)
Root analytic conductor: \(4.14209\)
Motivic weight: \(13\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: no
Self-dual: yes
Analytic rank: \(2\)
Selberg data: \((4,\ 256,\ (\ :13/2, 13/2),\ 1)\)

Particular Values

\(L(7)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{15}{2})\) 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 \( 1 \)
good3$D_{4}$ \( 1 + 872 T + 6658 p^{3} T^{2} + 872 p^{13} T^{3} + p^{26} T^{4} \)
5$D_{4}$ \( 1 - 18476 T + 82643774 p^{2} T^{2} - 18476 p^{13} T^{3} + p^{26} T^{4} \)
7$D_{4}$ \( 1 + 110928 T + 5599420418 p T^{2} + 110928 p^{13} T^{3} + p^{26} T^{4} \)
11$D_{4}$ \( 1 + 1497640 p T + 12362903299666 p T^{2} + 1497640 p^{14} T^{3} + p^{26} T^{4} \)
13$D_{4}$ \( 1 - 18744572 T + 344120051417598 T^{2} - 18744572 p^{13} T^{3} + p^{26} T^{4} \)
17$D_{4}$ \( 1 + 9046684 p T + 21058111940247014 T^{2} + 9046684 p^{14} T^{3} + p^{26} T^{4} \)
19$D_{4}$ \( 1 - 118747640 T + 59473815443581782 T^{2} - 118747640 p^{13} T^{3} + p^{26} T^{4} \)
23$D_{4}$ \( 1 + 718268912 T + 1097306915486653358 T^{2} + 718268912 p^{13} T^{3} + p^{26} T^{4} \)
29$D_{4}$ \( 1 - 309341340 T + 2504177667132675934 T^{2} - 309341340 p^{13} T^{3} + p^{26} T^{4} \)
31$D_{4}$ \( 1 + 5767504192 T + 50116253247327696702 T^{2} + 5767504192 p^{13} T^{3} + p^{26} T^{4} \)
37$D_{4}$ \( 1 + 11621553300 T + \)\(18\!\cdots\!38\)\( T^{2} + 11621553300 p^{13} T^{3} + p^{26} T^{4} \)
41$D_{4}$ \( 1 - 1311168276 T + \)\(16\!\cdots\!30\)\( T^{2} - 1311168276 p^{13} T^{3} + p^{26} T^{4} \)
43$D_{4}$ \( 1 - 29595620104 T + \)\(33\!\cdots\!74\)\( T^{2} - 29595620104 p^{13} T^{3} + p^{26} T^{4} \)
47$D_{4}$ \( 1 + 12313617888 T + \)\(10\!\cdots\!90\)\( T^{2} + 12313617888 p^{13} T^{3} + p^{26} T^{4} \)
53$D_{4}$ \( 1 + 38006007028 T + \)\(44\!\cdots\!42\)\( T^{2} + 38006007028 p^{13} T^{3} + p^{26} T^{4} \)
59$D_{4}$ \( 1 + 253345911704 T + \)\(16\!\cdots\!06\)\( T^{2} + 253345911704 p^{13} T^{3} + p^{26} T^{4} \)
61$D_{4}$ \( 1 + 647244384292 T + \)\(42\!\cdots\!62\)\( T^{2} + 647244384292 p^{13} T^{3} + p^{26} T^{4} \)
67$D_{4}$ \( 1 + 1619993806312 T + \)\(17\!\cdots\!86\)\( T^{2} + 1619993806312 p^{13} T^{3} + p^{26} T^{4} \)
71$D_{4}$ \( 1 - 1040270142512 T + \)\(22\!\cdots\!82\)\( T^{2} - 1040270142512 p^{13} T^{3} + p^{26} T^{4} \)
73$D_{4}$ \( 1 - 4005283908692 T + \)\(73\!\cdots\!18\)\( T^{2} - 4005283908692 p^{13} T^{3} + p^{26} T^{4} \)
79$D_{4}$ \( 1 - 2521777572064 T + \)\(10\!\cdots\!58\)\( T^{2} - 2521777572064 p^{13} T^{3} + p^{26} T^{4} \)
83$D_{4}$ \( 1 - 290486230904 T + \)\(14\!\cdots\!54\)\( T^{2} - 290486230904 p^{13} T^{3} + p^{26} T^{4} \)
89$D_{4}$ \( 1 + 8723755657740 T + \)\(61\!\cdots\!42\)\( T^{2} + 8723755657740 p^{13} T^{3} + p^{26} T^{4} \)
97$D_{4}$ \( 1 - 9601712299972 T + \)\(81\!\cdots\!50\)\( T^{2} - 9601712299972 p^{13} T^{3} + p^{26} T^{4} \)
show more
show less
   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{4} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−15.55135710257951389839322919637, −15.45320566557911739585848381208, −13.66595312993762257271194376020, −13.66349547643269955708093616313, −12.93589264550886955375061171692, −12.23259966580384188654484812369, −11.01922929866251431204094748496, −10.84838437184010403092606988067, −10.00629654588847434857303190521, −9.240502414505030205043998468535, −8.090087681447768409918649465184, −7.51463354503044133651025516108, −6.28027051356634941902753545627, −5.68928869157049054210779654330, −4.99060072138877002024465581746, −3.77846720030831692429756819543, −2.54482209674031040691983170860, −1.75263436171397553534246074094, 0, 0, 1.75263436171397553534246074094, 2.54482209674031040691983170860, 3.77846720030831692429756819543, 4.99060072138877002024465581746, 5.68928869157049054210779654330, 6.28027051356634941902753545627, 7.51463354503044133651025516108, 8.090087681447768409918649465184, 9.240502414505030205043998468535, 10.00629654588847434857303190521, 10.84838437184010403092606988067, 11.01922929866251431204094748496, 12.23259966580384188654484812369, 12.93589264550886955375061171692, 13.66349547643269955708093616313, 13.66595312993762257271194376020, 15.45320566557911739585848381208, 15.55135710257951389839322919637

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