Properties

Label 2-91-1.1-c7-0-27
Degree $2$
Conductor $91$
Sign $-1$
Analytic cond. $28.4270$
Root an. cond. $5.33170$
Motivic weight $7$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 10.2·2-s − 81.6·3-s − 22.5·4-s + 313.·5-s − 838.·6-s + 343·7-s − 1.54e3·8-s + 4.48e3·9-s + 3.21e3·10-s + 4.58e3·11-s + 1.83e3·12-s − 2.19e3·13-s + 3.52e3·14-s − 2.55e4·15-s − 1.29e4·16-s − 1.83e4·17-s + 4.60e4·18-s + 1.35e4·19-s − 7.05e3·20-s − 2.80e4·21-s + 4.71e4·22-s − 5.20e4·23-s + 1.26e5·24-s + 1.98e4·25-s − 2.25e4·26-s − 1.87e5·27-s − 7.72e3·28-s + ⋯
L(s)  = 1  + 0.907·2-s − 1.74·3-s − 0.176·4-s + 1.12·5-s − 1.58·6-s + 0.377·7-s − 1.06·8-s + 2.04·9-s + 1.01·10-s + 1.03·11-s + 0.307·12-s − 0.277·13-s + 0.343·14-s − 1.95·15-s − 0.792·16-s − 0.908·17-s + 1.85·18-s + 0.451·19-s − 0.197·20-s − 0.659·21-s + 0.943·22-s − 0.891·23-s + 1.86·24-s + 0.254·25-s − 0.251·26-s − 1.83·27-s − 0.0665·28-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 91 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(8-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 91 ^{s/2} \, \Gamma_{\C}(s+7/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(91\)    =    \(7 \cdot 13\)
Sign: $-1$
Analytic conductor: \(28.4270\)
Root analytic conductor: \(5.33170\)
Motivic weight: \(7\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 91,\ (\ :7/2),\ -1)\)

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)$
bad7 \( 1 - 343T \)
13 \( 1 + 2.19e3T \)
good2 \( 1 - 10.2T + 128T^{2} \)
3 \( 1 + 81.6T + 2.18e3T^{2} \)
5 \( 1 - 313.T + 7.81e4T^{2} \)
11 \( 1 - 4.58e3T + 1.94e7T^{2} \)
17 \( 1 + 1.83e4T + 4.10e8T^{2} \)
19 \( 1 - 1.35e4T + 8.93e8T^{2} \)
23 \( 1 + 5.20e4T + 3.40e9T^{2} \)
29 \( 1 + 1.26e5T + 1.72e10T^{2} \)
31 \( 1 + 1.36e5T + 2.75e10T^{2} \)
37 \( 1 + 2.35e5T + 9.49e10T^{2} \)
41 \( 1 + 6.76e5T + 1.94e11T^{2} \)
43 \( 1 - 2.66e5T + 2.71e11T^{2} \)
47 \( 1 + 4.40e5T + 5.06e11T^{2} \)
53 \( 1 - 1.57e6T + 1.17e12T^{2} \)
59 \( 1 + 9.92e5T + 2.48e12T^{2} \)
61 \( 1 + 8.66e5T + 3.14e12T^{2} \)
67 \( 1 - 4.03e6T + 6.06e12T^{2} \)
71 \( 1 + 4.24e6T + 9.09e12T^{2} \)
73 \( 1 + 5.35e6T + 1.10e13T^{2} \)
79 \( 1 + 3.35e6T + 1.92e13T^{2} \)
83 \( 1 - 3.70e6T + 2.71e13T^{2} \)
89 \( 1 - 3.62e6T + 4.42e13T^{2} \)
97 \( 1 + 7.98e6T + 8.07e13T^{2} \)
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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

−12.11904122270838157335956369850, −11.42781621551568001451391146952, −10.16094601508599076130742441860, −9.128312580819603783399404458216, −6.83354618707419028568684408695, −5.90055525313729470879474851490, −5.21025079124284140475096666520, −4.08382039946376337335931868279, −1.68019321672298700179106637650, 0, 1.68019321672298700179106637650, 4.08382039946376337335931868279, 5.21025079124284140475096666520, 5.90055525313729470879474851490, 6.83354618707419028568684408695, 9.128312580819603783399404458216, 10.16094601508599076130742441860, 11.42781621551568001451391146952, 12.11904122270838157335956369850

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