Properties

Label 2-56-1.1-c7-0-9
Degree $2$
Conductor $56$
Sign $-1$
Analytic cond. $17.4935$
Root an. cond. $4.18253$
Motivic weight $7$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

Downloads

Learn more

Normalization:  

Dirichlet series

L(s)  = 1  + 46·3-s − 160·5-s − 343·7-s − 71·9-s − 6.84e3·11-s − 2.90e3·13-s − 7.36e3·15-s + 1.65e4·17-s − 6.71e3·19-s − 1.57e4·21-s − 976·23-s − 5.25e4·25-s − 1.03e5·27-s − 6.16e4·29-s − 6.92e4·31-s − 3.14e5·33-s + 5.48e4·35-s − 5.33e5·37-s − 1.33e5·39-s + 1.83e5·41-s + 9.66e5·43-s + 1.13e4·45-s − 1.90e5·47-s + 1.17e5·49-s + 7.62e5·51-s − 7.85e5·53-s + 1.09e6·55-s + ⋯
L(s)  = 1  + 0.983·3-s − 0.572·5-s − 0.377·7-s − 0.0324·9-s − 1.54·11-s − 0.366·13-s − 0.563·15-s + 0.817·17-s − 0.224·19-s − 0.371·21-s − 0.0167·23-s − 0.672·25-s − 1.01·27-s − 0.469·29-s − 0.417·31-s − 1.52·33-s + 0.216·35-s − 1.73·37-s − 0.360·39-s + 0.415·41-s + 1.85·43-s + 0.0185·45-s − 0.267·47-s + 1/7·49-s + 0.804·51-s − 0.724·53-s + 0.886·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 56 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(56\)    =    \(2^{3} \cdot 7\)
Sign: $-1$
Analytic conductor: \(17.4935\)
Root analytic conductor: \(4.18253\)
Motivic weight: \(7\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 56,\ (\ :7/2),\ -1)\)

Particular Values

\(L(4)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{9}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
7 \( 1 + p^{3} T \)
good3 \( 1 - 46 T + p^{7} T^{2} \)
5 \( 1 + 32 p T + p^{7} T^{2} \)
11 \( 1 + 6840 T + p^{7} T^{2} \)
13 \( 1 + 2900 T + p^{7} T^{2} \)
17 \( 1 - 16566 T + p^{7} T^{2} \)
19 \( 1 + 6718 T + p^{7} T^{2} \)
23 \( 1 + 976 T + p^{7} T^{2} \)
29 \( 1 + 61662 T + p^{7} T^{2} \)
31 \( 1 + 69236 T + p^{7} T^{2} \)
37 \( 1 + 533062 T + p^{7} T^{2} \)
41 \( 1 - 183158 T + p^{7} T^{2} \)
43 \( 1 - 966864 T + p^{7} T^{2} \)
47 \( 1 + 190268 T + p^{7} T^{2} \)
53 \( 1 + 785010 T + p^{7} T^{2} \)
59 \( 1 - 2893594 T + p^{7} T^{2} \)
61 \( 1 + 95896 T + p^{7} T^{2} \)
67 \( 1 + 991644 T + p^{7} T^{2} \)
71 \( 1 - 1068160 T + p^{7} T^{2} \)
73 \( 1 - 2523458 T + p^{7} T^{2} \)
79 \( 1 - 285848 T + p^{7} T^{2} \)
83 \( 1 - 7094938 T + p^{7} T^{2} \)
89 \( 1 + 252390 T + p^{7} T^{2} \)
97 \( 1 + 1824794 T + p^{7} T^{2} \)
show more
show less
   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−13.30575396014611752441719127321, −12.25293640987987850059396425593, −10.77436420221191619201645279816, −9.541387429133680777365661702220, −8.235373873678361209102264697036, −7.44918648935519779576947778093, −5.46492166963714103440327209384, −3.63447058511631735748971482447, −2.43442260260108599569188206646, 0, 2.43442260260108599569188206646, 3.63447058511631735748971482447, 5.46492166963714103440327209384, 7.44918648935519779576947778093, 8.235373873678361209102264697036, 9.541387429133680777365661702220, 10.77436420221191619201645279816, 12.25293640987987850059396425593, 13.30575396014611752441719127321

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