hyperelliptic(.ncag).info

holonomy group

$\mathrm{Heis}(3)$, order $27$, SmallGroup $[27,3]$ · character table

tangent representation $\rho$

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

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

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

$\rho \cong$ $\chi_{ 2 }$ $\oplus$ $\chi_{ 10 }$

order of $\omega_X$

3

number of moduli

0

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

0

Albanese

the Albanese variety is a point; the fiber is $X$ itself (details)

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

indecomposability open (why)

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

$(1, 0, 0, 4, 4, 2, 1, 0, 0)$

Hodge diamond

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