Properties

Label 1-1048-1048.261-r1-0-0
Degree $1$
Conductor $1048$
Sign $1$
Analytic cond. $112.623$
Root an. cond. $112.623$
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  − 3-s − 5-s + 7-s + 9-s − 11-s − 13-s + 15-s − 17-s + 19-s − 21-s − 23-s + 25-s − 27-s + 29-s − 31-s + 33-s − 35-s + 37-s + 39-s + 41-s − 43-s − 45-s − 47-s + 49-s + 51-s − 53-s + 55-s + ⋯
L(s)  = 1  − 3-s − 5-s + 7-s + 9-s − 11-s − 13-s + 15-s − 17-s + 19-s − 21-s − 23-s + 25-s − 27-s + 29-s − 31-s + 33-s − 35-s + 37-s + 39-s + 41-s − 43-s − 45-s − 47-s + 49-s + 51-s − 53-s + 55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1048 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1048 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(1\)
Conductor: \(1048\)    =    \(2^{3} \cdot 131\)
Sign: $1$
Analytic conductor: \(112.623\)
Root analytic conductor: \(112.623\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{1048} (261, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((1,\ 1048,\ (1:\ ),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.6041301740\)
\(L(\frac12)\) \(\approx\) \(0.6041301740\)
\(L(1)\) \(\approx\) \(0.5822647269\)
\(L(1)\) \(\approx\) \(0.5822647269\)

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
131 \( 1 \)
good3 \( 1 - T \)
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

−21.643854680552555301192714126748, −20.44272391113410182471020631254, −19.92169189064306442790411838805, −18.83010742442415810256040449186, −18.003766108094701339437217595652, −17.69982259162103491864172617622, −16.52385007532382300227674855757, −15.9417831579413604759971176232, −15.23556629755502099353464700712, −14.40523744501904383082410149788, −13.26487900513323029739349062001, −12.36775905311646326302685909805, −11.743603227724334456571920879257, −11.092571576537991762900592409111, −10.41823238426689634838168813100, −9.38349125143020031787156121547, −8.02816625081039531667418618903, −7.654750391010477843428040969000, −6.743119212196838670308481963510, −5.54775756874598394947149122848, −4.771047254068149159905184517459, −4.28289366901505056249533157725, −2.86024669535402306159917109059, −1.65080018415708969708352242704, −0.37808103902154541988554540092, 0.37808103902154541988554540092, 1.65080018415708969708352242704, 2.86024669535402306159917109059, 4.28289366901505056249533157725, 4.771047254068149159905184517459, 5.54775756874598394947149122848, 6.743119212196838670308481963510, 7.654750391010477843428040969000, 8.02816625081039531667418618903, 9.38349125143020031787156121547, 10.41823238426689634838168813100, 11.092571576537991762900592409111, 11.743603227724334456571920879257, 12.36775905311646326302685909805, 13.26487900513323029739349062001, 14.40523744501904383082410149788, 15.23556629755502099353464700712, 15.9417831579413604759971176232, 16.52385007532382300227674855757, 17.69982259162103491864172617622, 18.003766108094701339437217595652, 18.83010742442415810256040449186, 19.92169189064306442790411838805, 20.44272391113410182471020631254, 21.643854680552555301192714126748

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