Properties

Label 4-28e2-1.1-c1e2-0-1
Degree $4$
Conductor $784$
Sign $1$
Analytic cond. $0.0499885$
Root an. cond. $0.472843$
Motivic weight $1$
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  − 2-s − 4-s + 3·8-s − 6·9-s − 16-s + 6·18-s + 10·25-s − 4·29-s − 5·32-s + 6·36-s + 12·37-s − 7·49-s − 10·50-s − 20·53-s + 4·58-s + 7·64-s − 18·72-s − 12·74-s + 27·81-s + 7·98-s − 10·100-s + 20·106-s − 36·109-s + 4·113-s + 4·116-s − 6·121-s + 127-s + ⋯
L(s)  = 1  − 0.707·2-s − 1/2·4-s + 1.06·8-s − 2·9-s − 1/4·16-s + 1.41·18-s + 2·25-s − 0.742·29-s − 0.883·32-s + 36-s + 1.97·37-s − 49-s − 1.41·50-s − 2.74·53-s + 0.525·58-s + 7/8·64-s − 2.12·72-s − 1.39·74-s + 3·81-s + 0.707·98-s − 100-s + 1.94·106-s − 3.44·109-s + 0.376·113-s + 0.371·116-s − 0.545·121-s + 0.0887·127-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 784 ^{s/2} \, \Gamma_{\C}(s+1/2)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(4\)
Conductor: \(784\)    =    \(2^{4} \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(0.0499885\)
Root analytic conductor: \(0.472843\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: no
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((4,\ 784,\ (\ :1/2, 1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.3090315375\)
\(L(\frac12)\) \(\approx\) \(0.3090315375\)
\(L(\frac{3}{2})\) 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$C_2$ \( 1 + T + p T^{2} \)
7$C_2$ \( 1 + p T^{2} \)
good3$C_2$ \( ( 1 + p T^{2} )^{2} \)
5$C_2$ \( ( 1 - p T^{2} )^{2} \)
11$C_2$ \( ( 1 - 4 T + p T^{2} )( 1 + 4 T + p T^{2} ) \)
13$C_2$ \( ( 1 - p T^{2} )^{2} \)
17$C_2$ \( ( 1 - p T^{2} )^{2} \)
19$C_2$ \( ( 1 + p T^{2} )^{2} \)
23$C_2$ \( ( 1 - 8 T + p T^{2} )( 1 + 8 T + p T^{2} ) \)
29$C_2$ \( ( 1 + 2 T + p T^{2} )^{2} \)
31$C_2$ \( ( 1 + p T^{2} )^{2} \)
37$C_2$ \( ( 1 - 6 T + p T^{2} )^{2} \)
41$C_2$ \( ( 1 - p T^{2} )^{2} \)
43$C_2$ \( ( 1 - 12 T + p T^{2} )( 1 + 12 T + p T^{2} ) \)
47$C_2$ \( ( 1 + p T^{2} )^{2} \)
53$C_2$ \( ( 1 + 10 T + p T^{2} )^{2} \)
59$C_2$ \( ( 1 + p T^{2} )^{2} \)
61$C_2$ \( ( 1 - p T^{2} )^{2} \)
67$C_2$ \( ( 1 - 4 T + p T^{2} )( 1 + 4 T + p T^{2} ) \)
71$C_2$ \( ( 1 - 16 T + p T^{2} )( 1 + 16 T + p T^{2} ) \)
73$C_2$ \( ( 1 - p T^{2} )^{2} \)
79$C_2$ \( ( 1 - 8 T + p T^{2} )( 1 + 8 T + p T^{2} ) \)
83$C_2$ \( ( 1 + p T^{2} )^{2} \)
89$C_2$ \( ( 1 - p T^{2} )^{2} \)
97$C_2$ \( ( 1 - p T^{2} )^{2} \)
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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

−17.36103568531052980967719794657, −17.28002321670383671839280006782, −16.51354540129250993514876248337, −16.20713218939645642377157653893, −14.98415704814163214532725277147, −14.46184169942106912708858944273, −14.18991637382708731070571093951, −13.24557983896369712639090803793, −12.76869743899601511049677332802, −11.80582065632319781891202715000, −11.00726626863206248848760142427, −10.77438049141535870105484223016, −9.487120310487436012715062545611, −9.195135941073282046423675747516, −8.288881670273938005137198112079, −7.916820437477627041447330894700, −6.62673790339788372172641120178, −5.61837662151843458306893694869, −4.67922456886986568351537135220, −3.05576516303848460288434731668, 3.05576516303848460288434731668, 4.67922456886986568351537135220, 5.61837662151843458306893694869, 6.62673790339788372172641120178, 7.916820437477627041447330894700, 8.288881670273938005137198112079, 9.195135941073282046423675747516, 9.487120310487436012715062545611, 10.77438049141535870105484223016, 11.00726626863206248848760142427, 11.80582065632319781891202715000, 12.76869743899601511049677332802, 13.24557983896369712639090803793, 14.18991637382708731070571093951, 14.46184169942106912708858944273, 14.98415704814163214532725277147, 16.20713218939645642377157653893, 16.51354540129250993514876248337, 17.28002321670383671839280006782, 17.36103568531052980967719794657

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