Properties

Label 2-91-1.1-c7-0-22
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 $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 5.06·2-s + 91.5·3-s − 102.·4-s − 15.8·5-s + 463.·6-s + 343·7-s − 1.16e3·8-s + 6.19e3·9-s − 80.5·10-s − 579.·11-s − 9.36e3·12-s + 2.19e3·13-s + 1.73e3·14-s − 1.45e3·15-s + 7.17e3·16-s + 2.59e4·17-s + 3.13e4·18-s + 5.67e4·19-s + 1.62e3·20-s + 3.13e4·21-s − 2.93e3·22-s + 1.71e4·23-s − 1.06e5·24-s − 7.78e4·25-s + 1.11e4·26-s + 3.66e5·27-s − 3.50e4·28-s + ⋯
L(s)  = 1  + 0.448·2-s + 1.95·3-s − 0.799·4-s − 0.0568·5-s + 0.876·6-s + 0.377·7-s − 0.806·8-s + 2.83·9-s − 0.0254·10-s − 0.131·11-s − 1.56·12-s + 0.277·13-s + 0.169·14-s − 0.111·15-s + 0.437·16-s + 1.28·17-s + 1.26·18-s + 1.89·19-s + 0.0454·20-s + 0.739·21-s − 0.0587·22-s + 0.293·23-s − 1.57·24-s − 0.996·25-s + 0.124·26-s + 3.58·27-s − 0.302·28-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: \(0\)
Selberg data: \((2,\ 91,\ (\ :7/2),\ 1)\)

Particular Values

\(L(4)\) \(\approx\) \(4.472242782\)
\(L(\frac12)\) \(\approx\) \(4.472242782\)
\(L(\frac{9}{2})\) 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 \( 1 - 5.06T + 128T^{2} \)
3 \( 1 - 91.5T + 2.18e3T^{2} \)
5 \( 1 + 15.8T + 7.81e4T^{2} \)
11 \( 1 + 579.T + 1.94e7T^{2} \)
17 \( 1 - 2.59e4T + 4.10e8T^{2} \)
19 \( 1 - 5.67e4T + 8.93e8T^{2} \)
23 \( 1 - 1.71e4T + 3.40e9T^{2} \)
29 \( 1 + 4.87e4T + 1.72e10T^{2} \)
31 \( 1 + 2.07e5T + 2.75e10T^{2} \)
37 \( 1 - 3.79e5T + 9.49e10T^{2} \)
41 \( 1 + 3.47e5T + 1.94e11T^{2} \)
43 \( 1 + 8.99e5T + 2.71e11T^{2} \)
47 \( 1 + 3.56e5T + 5.06e11T^{2} \)
53 \( 1 - 1.86e6T + 1.17e12T^{2} \)
59 \( 1 + 2.04e6T + 2.48e12T^{2} \)
61 \( 1 - 1.21e6T + 3.14e12T^{2} \)
67 \( 1 + 2.99e6T + 6.06e12T^{2} \)
71 \( 1 - 2.26e6T + 9.09e12T^{2} \)
73 \( 1 + 2.72e6T + 1.10e13T^{2} \)
79 \( 1 - 3.48e6T + 1.92e13T^{2} \)
83 \( 1 - 5.81e4T + 2.71e13T^{2} \)
89 \( 1 + 8.32e6T + 4.42e13T^{2} \)
97 \( 1 - 1.77e6T + 8.07e13T^{2} \)
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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

−13.21617165068745411664291797352, −11.98468323624242149189932443756, −9.958574289516056350248779225241, −9.312040463911508798050286439494, −8.219394093027801447613748356538, −7.46933215813166924124029306664, −5.27495524703005699123453113375, −3.84969856016893263449107447326, −3.08258049307173903683321344673, −1.36877779662944549026067084814, 1.36877779662944549026067084814, 3.08258049307173903683321344673, 3.84969856016893263449107447326, 5.27495524703005699123453113375, 7.46933215813166924124029306664, 8.219394093027801447613748356538, 9.312040463911508798050286439494, 9.958574289516056350248779225241, 11.98468323624242149189932443756, 13.21617165068745411664291797352

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