Properties

Label 1-2003-2003.2002-r1-0-0
Degree $1$
Conductor $2003$
Sign $1$
Analytic cond. $215.252$
Root an. cond. $215.252$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2-s + 3-s + 4-s − 5-s − 6-s − 7-s − 8-s + 9-s + 10-s − 11-s + 12-s + 13-s + 14-s − 15-s + 16-s − 17-s − 18-s + 19-s − 20-s − 21-s + 22-s − 23-s − 24-s + 25-s − 26-s + 27-s − 28-s + ⋯
L(s)  = 1  − 2-s + 3-s + 4-s − 5-s − 6-s − 7-s − 8-s + 9-s + 10-s − 11-s + 12-s + 13-s + 14-s − 15-s + 16-s − 17-s − 18-s + 19-s − 20-s − 21-s + 22-s − 23-s − 24-s + 25-s − 26-s + 27-s − 28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2003 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2003 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(1\)
Conductor: \(2003\)
Sign: $1$
Analytic conductor: \(215.252\)
Root analytic conductor: \(215.252\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{2003} (2002, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((1,\ 2003,\ (1:\ ),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.7399171818\)
\(L(\frac12)\) \(\approx\) \(0.7399171818\)
\(L(1)\) \(\approx\) \(0.6317596835\)
\(L(1)\) \(\approx\) \(0.6317596835\)

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2003 \( 1 \)
good2 \( 1 - T \)
3 \( 1 + T \)
5 \( 1 - T \)
7 \( 1 - T \)
11 \( 1 - T \)
13 \( 1 + T \)
17 \( 1 - T \)
19 \( 1 + T \)
23 \( 1 - T \)
29 \( 1 - T \)
31 \( 1 - T \)
37 \( 1 - T \)
41 \( 1 - T \)
43 \( 1 - T \)
47 \( 1 + T \)
53 \( 1 + T \)
59 \( 1 + T \)
61 \( 1 - T \)
67 \( 1 - T \)
71 \( 1 - T \)
73 \( 1 + T \)
79 \( 1 + T \)
83 \( 1 - T \)
89 \( 1 + T \)
97 \( 1 - T \)
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   \(L(s) = \displaystyle\prod_p \ (1 - \alpha_{p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−19.80677488058368093848112545306, −19.00179763923805526032866374122, −18.444894109303576025115655063576, −18.02233939221764393633652218528, −16.48571713028721824339451019305, −16.15790809458729041345731379013, −15.40668386005940036352821013012, −15.19224505365749091568735154851, −13.81468560838389163340501332734, −13.15840925279941569193390419390, −12.36311016671627391955797469930, −11.510494059436633749811744641674, −10.59795633407780787621306805007, −10.05900924507203204141580677388, −9.02422402137435810626380613532, −8.67897308820909355379483783733, −7.76706122569506530675629788892, −7.26789055150186317574822898631, −6.49659579172612239862542396876, −5.36628670054273651200785500510, −3.880605391603492829764035566797, −3.42397834535261368054495684074, −2.59052907614924315373160750849, −1.62863397378040708101418642961, −0.37490716172147350925175825523, 0.37490716172147350925175825523, 1.62863397378040708101418642961, 2.59052907614924315373160750849, 3.42397834535261368054495684074, 3.880605391603492829764035566797, 5.36628670054273651200785500510, 6.49659579172612239862542396876, 7.26789055150186317574822898631, 7.76706122569506530675629788892, 8.67897308820909355379483783733, 9.02422402137435810626380613532, 10.05900924507203204141580677388, 10.59795633407780787621306805007, 11.510494059436633749811744641674, 12.36311016671627391955797469930, 13.15840925279941569193390419390, 13.81468560838389163340501332734, 15.19224505365749091568735154851, 15.40668386005940036352821013012, 16.15790809458729041345731379013, 16.48571713028721824339451019305, 18.02233939221764393633652218528, 18.444894109303576025115655063576, 19.00179763923805526032866374122, 19.80677488058368093848112545306

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