Properties

Label 2-20e2-5.4-c3-0-23
Degree $2$
Conductor $400$
Sign $-0.894 + 0.447i$
Analytic cond. $23.6007$
Root an. cond. $4.85806$
Motivic weight $3$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + i·3-s − 26i·7-s + 26·9-s − 45·11-s − 44i·13-s + 117i·17-s − 91·19-s + 26·21-s − 18i·23-s + 53i·27-s − 144·29-s − 26·31-s − 45i·33-s − 214i·37-s + 44·39-s + ⋯
L(s)  = 1  + 0.192i·3-s − 1.40i·7-s + 0.962·9-s − 1.23·11-s − 0.938i·13-s + 1.66i·17-s − 1.09·19-s + 0.270·21-s − 0.163i·23-s + 0.377i·27-s − 0.922·29-s − 0.150·31-s − 0.237i·33-s − 0.950i·37-s + 0.180·39-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.894 + 0.447i)\, \overline{\Lambda}(4-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s+3/2) \, L(s)\cr =\mathstrut & (-0.894 + 0.447i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(400\)    =    \(2^{4} \cdot 5^{2}\)
Sign: $-0.894 + 0.447i$
Analytic conductor: \(23.6007\)
Root analytic conductor: \(4.85806\)
Motivic weight: \(3\)
Rational: no
Arithmetic: yes
Character: $\chi_{400} (49, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 400,\ (\ :3/2),\ -0.894 + 0.447i)\)

Particular Values

\(L(2)\) \(\approx\) \(0.6709085638\)
\(L(\frac12)\) \(\approx\) \(0.6709085638\)
\(L(\frac{5}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 \)
good3 \( 1 - iT - 27T^{2} \)
7 \( 1 + 26iT - 343T^{2} \)
11 \( 1 + 45T + 1.33e3T^{2} \)
13 \( 1 + 44iT - 2.19e3T^{2} \)
17 \( 1 - 117iT - 4.91e3T^{2} \)
19 \( 1 + 91T + 6.85e3T^{2} \)
23 \( 1 + 18iT - 1.21e4T^{2} \)
29 \( 1 + 144T + 2.43e4T^{2} \)
31 \( 1 + 26T + 2.97e4T^{2} \)
37 \( 1 + 214iT - 5.06e4T^{2} \)
41 \( 1 + 459T + 6.89e4T^{2} \)
43 \( 1 + 460iT - 7.95e4T^{2} \)
47 \( 1 - 468iT - 1.03e5T^{2} \)
53 \( 1 + 558iT - 1.48e5T^{2} \)
59 \( 1 + 72T + 2.05e5T^{2} \)
61 \( 1 + 118T + 2.26e5T^{2} \)
67 \( 1 + 251iT - 3.00e5T^{2} \)
71 \( 1 + 108T + 3.57e5T^{2} \)
73 \( 1 + 299iT - 3.89e5T^{2} \)
79 \( 1 + 898T + 4.93e5T^{2} \)
83 \( 1 - 927iT - 5.71e5T^{2} \)
89 \( 1 + 351T + 7.04e5T^{2} \)
97 \( 1 - 386iT - 9.12e5T^{2} \)
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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

−10.56274284429775148549756514350, −9.922413046763944970091042655067, −8.427460416979262564376503711780, −7.67919442404474539100835531862, −6.82256444712194132480159139523, −5.55708454945625139759102586587, −4.35926437920469053597212026933, −3.55242601428833158527110280667, −1.79458506374998210883146754356, −0.21101499771311045873645691305, 1.85758253460488688080849070393, 2.85166632103282400950275483469, 4.54329257044329439848044059741, 5.39723636120386282890234038006, 6.57221334238163972215349957233, 7.48651968093925570464671610454, 8.555030750358521281633070061985, 9.389966774357262107591964086596, 10.22952993191318345558407880096, 11.42719545365814315039984594559

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