Properties

Label 4-644-1.1-c1e2-0-0
Degree $4$
Conductor $644$
Sign $1$
Analytic cond. $0.0410619$
Root an. cond. $0.450152$
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  − 2·2-s − 2·3-s + 3·4-s + 4·5-s + 4·6-s − 3·7-s − 4·8-s − 2·9-s − 8·10-s + 2·11-s − 6·12-s − 6·13-s + 6·14-s − 8·15-s + 5·16-s + 4·17-s + 4·18-s + 12·20-s + 6·21-s − 4·22-s + 23-s + 8·24-s + 6·25-s + 12·26-s + 10·27-s − 9·28-s − 4·29-s + ⋯
L(s)  = 1  − 1.41·2-s − 1.15·3-s + 3/2·4-s + 1.78·5-s + 1.63·6-s − 1.13·7-s − 1.41·8-s − 2/3·9-s − 2.52·10-s + 0.603·11-s − 1.73·12-s − 1.66·13-s + 1.60·14-s − 2.06·15-s + 5/4·16-s + 0.970·17-s + 0.942·18-s + 2.68·20-s + 1.30·21-s − 0.852·22-s + 0.208·23-s + 1.63·24-s + 6/5·25-s + 2.35·26-s + 1.92·27-s − 1.70·28-s − 0.742·29-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 644 ^{s/2} \, \Gamma_{\C}(s)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 644 ^{s/2} \, \Gamma_{\C}(s+1/2)^{2} \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(4\)
Conductor: \(644\)    =    \(2^{2} \cdot 7 \cdot 23\)
Sign: $1$
Analytic conductor: \(0.0410619\)
Root analytic conductor: \(0.450152\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: no
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((4,\ 644,\ (\ :1/2, 1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.2182461741\)
\(L(\frac12)\) \(\approx\) \(0.2182461741\)
\(L(\frac{3}{2})\) 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$C_1$ \( ( 1 + T )^{2} \)
7$C_1$$\times$$C_2$ \( ( 1 - T )( 1 + 4 T + p T^{2} ) \)
23$C_1$$\times$$C_2$ \( ( 1 - T )( 1 + p T^{2} ) \)
good3$C_2$$\times$$C_2$ \( ( 1 + p T^{2} )( 1 + 2 T + p T^{2} ) \)
5$C_2$$\times$$C_2$ \( ( 1 - 4 T + p T^{2} )( 1 + p T^{2} ) \)
11$C_2$$\times$$C_2$ \( ( 1 - 2 T + p T^{2} )( 1 + p T^{2} ) \)
13$C_2$$\times$$C_2$ \( ( 1 + 2 T + p T^{2} )( 1 + 4 T + p T^{2} ) \)
17$C_2$$\times$$C_2$ \( ( 1 - 6 T + p T^{2} )( 1 + 2 T + p T^{2} ) \)
19$C_2$ \( ( 1 - 2 T + p T^{2} )( 1 + 2 T + p T^{2} ) \)
29$C_2$$\times$$C_2$ \( ( 1 - 2 T + p T^{2} )( 1 + 6 T + p T^{2} ) \)
31$C_2$$\times$$C_2$ \( ( 1 + p T^{2} )( 1 + 4 T + p T^{2} ) \)
37$C_2$$\times$$C_2$ \( ( 1 - 2 T + p T^{2} )( 1 + 4 T + p T^{2} ) \)
41$C_2$ \( ( 1 - 6 T + p T^{2} )^{2} \)
43$C_2$$\times$$C_2$ \( ( 1 - 10 T + p T^{2} )( 1 - 8 T + p T^{2} ) \)
47$C_2$$\times$$C_2$ \( ( 1 + p T^{2} )( 1 + 12 T + p T^{2} ) \)
53$C_2$$\times$$C_2$ \( ( 1 - 6 T + p T^{2} )( 1 + 4 T + p T^{2} ) \)
59$C_2$$\times$$C_2$ \( ( 1 - 12 T + p T^{2} )( 1 + 6 T + p T^{2} ) \)
61$C_2$ \( ( 1 - 8 T + p T^{2} )( 1 + 8 T + p T^{2} ) \)
67$C_2$$\times$$C_2$ \( ( 1 + 4 T + p T^{2} )( 1 + 10 T + p T^{2} ) \)
71$C_2$ \( ( 1 + p T^{2} )^{2} \)
73$C_2$$\times$$C_2$ \( ( 1 - 6 T + p T^{2} )( 1 - 2 T + p T^{2} ) \)
79$C_2$$\times$$C_2$ \( ( 1 - 8 T + p T^{2} )( 1 + 12 T + p T^{2} ) \)
83$C_2$$\times$$C_2$ \( ( 1 - 14 T + p T^{2} )( 1 + 6 T + p T^{2} ) \)
89$C_2$ \( ( 1 + 6 T + p T^{2} )^{2} \)
97$C_2$$\times$$C_2$ \( ( 1 - 6 T + p T^{2} )( 1 + 10 T + p T^{2} ) \)
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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

−19.8583928497, −19.5800270198, −19.0835644465, −18.2120541317, −17.6722430914, −17.2128532162, −17.1574548200, −16.3370810014, −16.2140576802, −14.6077730657, −14.5961589016, −13.5383274568, −12.4227589942, −12.3052609901, −11.2313614144, −10.6815349670, −9.76554711946, −9.59481142744, −8.97193545260, −7.57571100089, −6.69441913642, −5.84432417960, −5.57928681743, −2.63232737475, 2.63232737475, 5.57928681743, 5.84432417960, 6.69441913642, 7.57571100089, 8.97193545260, 9.59481142744, 9.76554711946, 10.6815349670, 11.2313614144, 12.3052609901, 12.4227589942, 13.5383274568, 14.5961589016, 14.6077730657, 16.2140576802, 16.3370810014, 17.1574548200, 17.2128532162, 17.6722430914, 18.2120541317, 19.0835644465, 19.5800270198, 19.8583928497

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