Properties

Label 2-2e2-4.3-c40-0-15
Degree $2$
Conductor $4$
Sign $1$
Analytic cond. $40.5369$
Root an. cond. $6.36686$
Motivic weight $40$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 1.04e6·2-s + 1.09e12·4-s + 1.82e14·5-s + 1.15e18·8-s + 1.21e19·9-s + 1.90e20·10-s − 1.58e21·13-s + 1.20e24·16-s − 7.56e24·17-s + 1.27e25·18-s + 2.00e26·20-s + 2.40e28·25-s − 1.66e27·26-s − 3.12e29·29-s + 1.26e30·32-s − 7.93e30·34-s + 1.33e31·36-s + 4.38e31·37-s + 2.09e32·40-s − 1.01e32·41-s + 2.21e33·45-s + 6.36e33·49-s + 2.51e34·50-s − 1.74e33·52-s + 8.31e33·53-s − 3.27e35·58-s − 9.00e35·61-s + ⋯
L(s)  = 1  + 2-s + 4-s + 1.90·5-s + 8-s + 9-s + 1.90·10-s − 0.0836·13-s + 16-s − 1.86·17-s + 18-s + 1.90·20-s + 2.64·25-s − 0.0836·26-s − 1.76·29-s + 32-s − 1.86·34-s + 36-s + 1.89·37-s + 1.90·40-s − 0.564·41-s + 1.90·45-s + 49-s + 2.64·50-s − 0.0836·52-s + 0.271·53-s − 1.76·58-s − 1.76·61-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 4 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(41-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 4 ^{s/2} \, \Gamma_{\C}(s+20) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(4\)    =    \(2^{2}\)
Sign: $1$
Analytic conductor: \(40.5369\)
Root analytic conductor: \(6.36686\)
Motivic weight: \(40\)
Rational: yes
Arithmetic: yes
Character: $\chi_{4} (3, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 4,\ (\ :20),\ 1)\)

Particular Values

\(L(\frac{41}{2})\) \(\approx\) \(6.019841844\)
\(L(\frac12)\) \(\approx\) \(6.019841844\)
\(L(21)\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - p^{20} T \)
good3 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
5 \( 1 - 182008936336226 T + p^{40} T^{2} \)
7 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
11 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
13 \( 1 + \)\(15\!\cdots\!98\)\( T + p^{40} T^{2} \)
17 \( 1 + \)\(75\!\cdots\!98\)\( T + p^{40} T^{2} \)
19 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
23 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
29 \( 1 + \)\(31\!\cdots\!98\)\( T + p^{40} T^{2} \)
31 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
37 \( 1 - \)\(43\!\cdots\!02\)\( T + p^{40} T^{2} \)
41 \( 1 + \)\(10\!\cdots\!98\)\( T + p^{40} T^{2} \)
43 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
47 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
53 \( 1 - \)\(83\!\cdots\!02\)\( T + p^{40} T^{2} \)
59 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
61 \( 1 + \)\(90\!\cdots\!98\)\( T + p^{40} T^{2} \)
67 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
71 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
73 \( 1 + \)\(78\!\cdots\!98\)\( T + p^{40} T^{2} \)
79 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
83 \( ( 1 - p^{20} T )( 1 + p^{20} T ) \)
89 \( 1 + \)\(18\!\cdots\!98\)\( T + p^{40} T^{2} \)
97 \( 1 + \)\(56\!\cdots\!98\)\( T + p^{40} T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−15.10071645420164843860602943696, −13.58432762185632589947283611686, −12.93827376580409946022554224785, −10.81629669774266391295703147051, −9.479302953480549279925497030271, −6.91085190058351716466034964272, −5.80516922006487507015362405912, −4.44203127499654296164370170699, −2.43819820618462919560270824591, −1.54772323106021795024955210109, 1.54772323106021795024955210109, 2.43819820618462919560270824591, 4.44203127499654296164370170699, 5.80516922006487507015362405912, 6.91085190058351716466034964272, 9.479302953480549279925497030271, 10.81629669774266391295703147051, 12.93827376580409946022554224785, 13.58432762185632589947283611686, 15.10071645420164843860602943696

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