hyperelliptic(.ncag).info

holonomy group

$\mathrm{G}(3,4,2)$, order $12$, SmallGroup $[12,1]$ · character table

tangent representation $\rho$

$\rho(g_{1}) = \operatorname{diag}(1, 1, i, -i)$

$\rho(g_{2}) = \operatorname{diag}(1, 1, -1, -1)$

$\rho(g_{3}) = \operatorname{diag}(1, 1, \zeta_{3}, \zeta_{3}^{2})$

$\rho \cong$ $2\,\chi_{ 1 }$ $\oplus$ $\chi_{ 6 }$

order of $\omega_X$

1

number of moduli

5

irregularity $q = \dim \operatorname{Aut}^0(X)$

2

Albanese

the Albanese variety has dimension $2$; the general fiber has dimension $2$ and is an abelian variety or a hyperelliptic variety (details)

$\mathbf{D}^{\mathrm{b}}(X)$

indecomposable

Hochschild cohomology $\dim \mathrm{HH}^\bullet$

$(1, 4, 9, 16, 20, 16, 9, 4, 1)$

Hodge diamond

polyvector fields $\mathrm{H}^q(X,\bigwedge^p T_X)$