Genus 2 isogeny class 707281.a

• Label: 707281.a
• Conductor: $707281$
• Sato-Tate group: $\mathrm{SU}(2)\times\mathrm{SU}(2)$
• \(\End(J_{\overline{\Q}}) \otimes \R\): \(\R \times \R\)
• \(\End(J_{\overline{\Q}}) \otimes \Q\): \(\mathsf{RM}\)
• \(\End(J) \otimes \Q\): \(\mathsf{RM}\)
• \(\overline{\Q}\)-simple: yes
• \(\mathrm{GL}_2\)-type: yes

Genus 2 curves in isogeny class 707281.a

Label	Equation
707281.a.707281.1	\(y^2 + (x^3 + x + 1)y = x^5 - 2x^4 - 8x^3 + 3x^2 + 5x + 1\)

L-function data

Analytic rank:

\(2\)  (upper bound)

Mordell-Weil rank:

\(2\)

Bad L-factors:

Prime	L-Factor
\(29\)	\( 1\)

Good L-factors:

Prime	L-Factor
\(2\)	\( 1 + T + 3 T^{2} + 2 T^{3} + 4 T^{4}\)
\(3\)	\( 1 - T + 5 T^{2} - 3 T^{3} + 9 T^{4}\)
\(5\)	\( 1 - T - T^{2} - 5 T^{3} + 25 T^{4}\)
\(7\)	\( 1 + 9 T^{2} + 49 T^{4}\)
\(11\)	\( 1 + 5 T + 27 T^{2} + 55 T^{3} + 121 T^{4}\)
\(13\)	\( 1 - 4 T + 25 T^{2} - 52 T^{3} + 169 T^{4}\)
\(17\)	\( 1 + 11 T + 63 T^{2} + 187 T^{3} + 289 T^{4}\)
\(19\)	\( 1 + 3 T + 29 T^{2} + 57 T^{3} + 361 T^{4}\)
\(23\)	\( 1 - 2 T + 42 T^{2} - 46 T^{3} + 529 T^{4}\)
$\cdots$	$\cdots$

See L-function page for more information

Sato-Tate group

\(\mathrm{ST} =\) $\mathrm{SU}(2)\times\mathrm{SU}(2)$, \(\quad \mathrm{ST}^0 = \mathrm{SU}(2)\times\mathrm{SU}(2)\)

Decomposition of the Jacobian

Simple over \(\overline{\Q}\)

Endomorphisms of the Jacobian

Of \(\GL_2\)-type over \(\Q\)

Endomorphism algebra over \(\Q\):

\(\End (J_{}) \otimes \Q \)	\(\simeq\)	\(\Q(\sqrt{5}) \)
\(\End (J_{}) \otimes \R\)	\(\simeq\)	\(\R \times \R\)

All \(\overline{\Q}\)-endomorphisms of the Jacobian are defined over \(\Q\).

More complete information on endomorphism algebras and rings can be found on the pages of the individual curves in the isogeny class.