Genus 2 curves in isogeny class 13689.a
Label | Equation |
---|---|
13689.a.13689.1 | \(y^2 + (x^3 + x + 1)y = x^5 - x^4 - 4x^3 - 2x^2\) |
L-function data
Analytic rank: | \(2\) (upper bound) | ||||||||||||||||||||
Mordell-Weil rank: | \(2\) | ||||||||||||||||||||
Bad L-factors: |
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Good L-factors: |
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See L-function page for more information |
Sato-Tate group
\(\mathrm{ST} =\) $E_6$, \(\quad \mathrm{ST}^0 = \mathrm{SU}(2)\)
Decomposition of the Jacobian
Splits over the number field \(\Q (b) \simeq \) 6.6.2436053373.2 with defining polynomial:
\(x^{6} - 39 x^{4} - 26 x^{3} + 351 x^{2} + 585 x + 117\)
Decomposes up to isogeny as the square of the elliptic curve isogeny class:
\(y^2 = x^3 - g_4 / 48 x - g_6 / 864\) with
\(g_4 = -\frac{12015765}{3956} b^{5} + \frac{233936235}{15824} b^{4} + \frac{735217587}{15824} b^{3} - \frac{2326501125}{15824} b^{2} - \frac{240909201}{688} b - \frac{288784197}{3956}\)
\(g_6 = \frac{36685451205}{3956} b^{5} - \frac{2858709285549}{63296} b^{4} - \frac{8968980313215}{63296} b^{3} + \frac{28420667571231}{63296} b^{2} + \frac{2939506491519}{2752} b + \frac{14100757396245}{63296}\)
Conductor norm: 1
Endomorphisms of the Jacobian
Of \(\GL_2\)-type over \(\Q\)
Endomorphism algebra over \(\Q\):
\(\End (J_{}) \otimes \Q \) | \(\simeq\) | \(\Q(\sqrt{-3}) \) |
\(\End (J_{}) \otimes \R\) | \(\simeq\) | \(\C\) |
Smallest field over which all endomorphisms are defined:
Galois number field \(K = \Q (a) \simeq \) 6.6.2436053373.2 with defining polynomial \(x^{6} - 39 x^{4} - 26 x^{3} + 351 x^{2} + 585 x + 117\)
Endomorphism algebra over \(\overline{\Q}\):
\(\End (J_{\overline{\Q}}) \otimes \Q \) | \(\simeq\) | \(\mathrm{M}_2(\)\(\Q\)\()\) |
\(\End (J_{\overline{\Q}}) \otimes \R\) | \(\simeq\) | \(\mathrm{M}_2 (\R)\) |
More complete information on endomorphism algebras and rings can be found on the pages of the individual curves in the isogeny class.