Properties

Label 2-91-1.1-c7-0-13
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  − 12.7·2-s − 48.2·3-s + 34.2·4-s − 506.·5-s + 615.·6-s − 343·7-s + 1.19e3·8-s + 145.·9-s + 6.45e3·10-s + 1.35e3·11-s − 1.65e3·12-s + 2.19e3·13-s + 4.36e3·14-s + 2.44e4·15-s − 1.95e4·16-s + 1.05e4·17-s − 1.85e3·18-s + 1.42e4·19-s − 1.73e4·20-s + 1.65e4·21-s − 1.72e4·22-s − 8.97e3·23-s − 5.76e4·24-s + 1.78e5·25-s − 2.79e4·26-s + 9.85e4·27-s − 1.17e4·28-s + ⋯
L(s)  = 1  − 1.12·2-s − 1.03·3-s + 0.267·4-s − 1.81·5-s + 1.16·6-s − 0.377·7-s + 0.824·8-s + 0.0664·9-s + 2.04·10-s + 0.306·11-s − 0.276·12-s + 0.277·13-s + 0.425·14-s + 1.87·15-s − 1.19·16-s + 0.520·17-s − 0.0748·18-s + 0.475·19-s − 0.485·20-s + 0.390·21-s − 0.344·22-s − 0.153·23-s − 0.851·24-s + 2.28·25-s − 0.312·26-s + 0.964·27-s − 0.101·28-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 \( 1 + 12.7T + 128T^{2} \)
3 \( 1 + 48.2T + 2.18e3T^{2} \)
5 \( 1 + 506.T + 7.81e4T^{2} \)
11 \( 1 - 1.35e3T + 1.94e7T^{2} \)
17 \( 1 - 1.05e4T + 4.10e8T^{2} \)
19 \( 1 - 1.42e4T + 8.93e8T^{2} \)
23 \( 1 + 8.97e3T + 3.40e9T^{2} \)
29 \( 1 + 2.38e4T + 1.72e10T^{2} \)
31 \( 1 - 3.09e4T + 2.75e10T^{2} \)
37 \( 1 + 1.49e5T + 9.49e10T^{2} \)
41 \( 1 - 2.28e5T + 1.94e11T^{2} \)
43 \( 1 + 2.73e5T + 2.71e11T^{2} \)
47 \( 1 + 1.24e6T + 5.06e11T^{2} \)
53 \( 1 + 1.40e6T + 1.17e12T^{2} \)
59 \( 1 - 1.73e6T + 2.48e12T^{2} \)
61 \( 1 - 2.75e6T + 3.14e12T^{2} \)
67 \( 1 - 3.37e6T + 6.06e12T^{2} \)
71 \( 1 + 3.17e6T + 9.09e12T^{2} \)
73 \( 1 - 4.53e6T + 1.10e13T^{2} \)
79 \( 1 + 3.35e6T + 1.92e13T^{2} \)
83 \( 1 - 2.79e4T + 2.71e13T^{2} \)
89 \( 1 - 6.49e6T + 4.42e13T^{2} \)
97 \( 1 - 1.51e7T + 8.07e13T^{2} \)
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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

−11.67820268245597931510164622316, −11.17855517029504857121654087873, −10.01938936468146411730338518755, −8.651384755340530243315931916254, −7.77529226520526045069556873353, −6.68780842844192095448503139421, −4.94192139842278689718592259196, −3.60085473309128521613366773934, −0.888522798364425778889058611502, 0, 0.888522798364425778889058611502, 3.60085473309128521613366773934, 4.94192139842278689718592259196, 6.68780842844192095448503139421, 7.77529226520526045069556873353, 8.651384755340530243315931916254, 10.01938936468146411730338518755, 11.17855517029504857121654087873, 11.67820268245597931510164622316

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