Toric Sheaves on Hirzebruch Orbifolds
Speaker:
Weikun Wang, University of Maryland, College Park
Date and Time:
Tuesday, June 19, 2018 - 3:10pm to 3:30pm
Location:
Earth Sciences Centre, room B149
Abstract:
We provide a stacky fan description of the total space of certain split vector bundles, as well as their projectivization, over toric Deligne-Mumford stacks. We then specialize to the case of Hirzebruch orbifold $\mathcal{H}_{r}^{ab}$ obtained by projectivizing $\mathcal{O} \oplus \mathcal{O}(r)$ over the weighted projective line $\mathbb{P}(a,b)$. Next, we give a combinatorial description of toric sheaves on $\mathcal{H}_{r}^{ab}$ and investigate their basic properties. With fixed choice of polarization and a generating sheaf, we describe the fixed point locus of the moduli scheme of $\mathcal{H}$-stable torsion free sheaves of rank $1$ and $2$ on $\mathcal{H}_{r}^{ab}$.