Properties

Label 2-20e2-5.4-c5-0-20
Degree $2$
Conductor $400$
Sign $0.894 - 0.447i$
Analytic cond. $64.1535$
Root an. cond. $8.00958$
Motivic weight $5$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 25.5i·3-s − 131. i·7-s − 408.·9-s − 290.·11-s − 68.3i·13-s − 310. i·17-s − 2.13e3·19-s + 3.34e3·21-s + 873. i·23-s − 4.22e3i·27-s + 2.58e3·29-s + 9.08e3·31-s − 7.40e3i·33-s + 3.99e3i·37-s + 1.74e3·39-s + ⋯
L(s)  = 1  + 1.63i·3-s − 1.01i·7-s − 1.68·9-s − 0.722·11-s − 0.112i·13-s − 0.260i·17-s − 1.35·19-s + 1.65·21-s + 0.344i·23-s − 1.11i·27-s + 0.569·29-s + 1.69·31-s − 1.18i·33-s + 0.479i·37-s + 0.183·39-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (0.894 - 0.447i)\, \overline{\Lambda}(6-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 400 ^{s/2} \, \Gamma_{\C}(s+5/2) \, L(s)\cr =\mathstrut & (0.894 - 0.447i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(400\)    =    \(2^{4} \cdot 5^{2}\)
Sign: $0.894 - 0.447i$
Analytic conductor: \(64.1535\)
Root analytic conductor: \(8.00958\)
Motivic weight: \(5\)
Rational: no
Arithmetic: yes
Character: $\chi_{400} (49, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 400,\ (\ :5/2),\ 0.894 - 0.447i)\)

Particular Values

\(L(3)\) \(\approx\) \(1.575338608\)
\(L(\frac12)\) \(\approx\) \(1.575338608\)
\(L(\frac{7}{2})\) 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 \( 1 - 25.5iT - 243T^{2} \)
7 \( 1 + 131. iT - 1.68e4T^{2} \)
11 \( 1 + 290.T + 1.61e5T^{2} \)
13 \( 1 + 68.3iT - 3.71e5T^{2} \)
17 \( 1 + 310. iT - 1.41e6T^{2} \)
19 \( 1 + 2.13e3T + 2.47e6T^{2} \)
23 \( 1 - 873. iT - 6.43e6T^{2} \)
29 \( 1 - 2.58e3T + 2.05e7T^{2} \)
31 \( 1 - 9.08e3T + 2.86e7T^{2} \)
37 \( 1 - 3.99e3iT - 6.93e7T^{2} \)
41 \( 1 - 1.69e4T + 1.15e8T^{2} \)
43 \( 1 + 1.80e4iT - 1.47e8T^{2} \)
47 \( 1 + 2.48e4iT - 2.29e8T^{2} \)
53 \( 1 - 7.65e3iT - 4.18e8T^{2} \)
59 \( 1 + 9.23e3T + 7.14e8T^{2} \)
61 \( 1 - 3.32e3T + 8.44e8T^{2} \)
67 \( 1 - 3.23e4iT - 1.35e9T^{2} \)
71 \( 1 - 3.58e4T + 1.80e9T^{2} \)
73 \( 1 - 2.65e4iT - 2.07e9T^{2} \)
79 \( 1 - 7.17e4T + 3.07e9T^{2} \)
83 \( 1 - 3.96e4iT - 3.93e9T^{2} \)
89 \( 1 - 1.17e5T + 5.58e9T^{2} \)
97 \( 1 - 2.18e4iT - 8.58e9T^{2} \)
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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

−10.43800514640333166342319378974, −9.911958361849102785061731565543, −8.837849012162969235691991560916, −7.961171716266728517533417901333, −6.68724900715649043945795811498, −5.41521683724499492447045125230, −4.49365915576149627168737549827, −3.81503464938775282929079023862, −2.59424652335219409368416896673, −0.52816453530254608061078491357, 0.800203244962551492477048188173, 2.12253926755008464125400462307, 2.75679465594683325563082940666, 4.67802506741210012098525933425, 6.06250027595871168488203924663, 6.42621044521696871223912407085, 7.75377392283534741247603510379, 8.257041992476506873152136072098, 9.213208329148358968546102694561, 10.58407601812603119499970032844

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