Properties

Label 2-7728-1.1-c1-0-55
Degree $2$
Conductor $7728$
Sign $1$
Analytic cond. $61.7083$
Root an. cond. $7.85546$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s − 7-s + 9-s + 3.70·11-s + 2·13-s + 5.40·17-s + 7.70·19-s − 21-s − 23-s − 5·25-s + 27-s + 2·29-s − 3.40·31-s + 3.70·33-s + 3.40·37-s + 2·39-s − 3.70·41-s + 1.40·43-s + 6.29·47-s + 49-s + 5.40·51-s − 9.10·53-s + 7.70·57-s − 5.10·59-s + 6.29·61-s − 63-s + 13.4·67-s + ⋯
L(s)  = 1  + 0.577·3-s − 0.377·7-s + 0.333·9-s + 1.11·11-s + 0.554·13-s + 1.31·17-s + 1.76·19-s − 0.218·21-s − 0.208·23-s − 25-s + 0.192·27-s + 0.371·29-s − 0.611·31-s + 0.644·33-s + 0.559·37-s + 0.320·39-s − 0.578·41-s + 0.213·43-s + 0.918·47-s + 0.142·49-s + 0.756·51-s − 1.25·53-s + 1.02·57-s − 0.664·59-s + 0.806·61-s − 0.125·63-s + 1.63·67-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 7728 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 7728 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(7728\)    =    \(2^{4} \cdot 3 \cdot 7 \cdot 23\)
Sign: $1$
Analytic conductor: \(61.7083\)
Root analytic conductor: \(7.85546\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 7728,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(3.115520383\)
\(L(\frac12)\) \(\approx\) \(3.115520383\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - T \)
7 \( 1 + T \)
23 \( 1 + T \)
good5 \( 1 + 5T^{2} \)
11 \( 1 - 3.70T + 11T^{2} \)
13 \( 1 - 2T + 13T^{2} \)
17 \( 1 - 5.40T + 17T^{2} \)
19 \( 1 - 7.70T + 19T^{2} \)
29 \( 1 - 2T + 29T^{2} \)
31 \( 1 + 3.40T + 31T^{2} \)
37 \( 1 - 3.40T + 37T^{2} \)
41 \( 1 + 3.70T + 41T^{2} \)
43 \( 1 - 1.40T + 43T^{2} \)
47 \( 1 - 6.29T + 47T^{2} \)
53 \( 1 + 9.10T + 53T^{2} \)
59 \( 1 + 5.10T + 59T^{2} \)
61 \( 1 - 6.29T + 61T^{2} \)
67 \( 1 - 13.4T + 67T^{2} \)
71 \( 1 + 71T^{2} \)
73 \( 1 + 5.40T + 73T^{2} \)
79 \( 1 + 11.4T + 79T^{2} \)
83 \( 1 - 10T + 83T^{2} \)
89 \( 1 + 2T + 89T^{2} \)
97 \( 1 - 6T + 97T^{2} \)
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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

−7.76955891031587878766423839136, −7.34874015662898059626013642731, −6.47621867360384587092488930658, −5.82871814383236284895405728985, −5.12341442530325497758611591396, −4.00238437579212229204889708246, −3.55452307930884782522302475185, −2.87293166624421301343379082092, −1.67372604256424874501373601747, −0.928812032894187998649617790708, 0.928812032894187998649617790708, 1.67372604256424874501373601747, 2.87293166624421301343379082092, 3.55452307930884782522302475185, 4.00238437579212229204889708246, 5.12341442530325497758611591396, 5.82871814383236284895405728985, 6.47621867360384587092488930658, 7.34874015662898059626013642731, 7.76955891031587878766423839136

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