Abstract
Let $C: y^2=f(x)$ be a hyperelliptic curve of genus $g\geq 1$, defined over a complete discretely valued field $K$, with ring of integers $O_K$. Under certain conditions on $C$, mild when residue characteristic is not $2$, we explicitly construct the minimal regular model with normal crossings $\mathcal{C}/O_K$ of $C$. In the same setting we determine a basis of integral differentials of $C$, that is an $O_K$-basis for the global sections of the relative dualising sheaf $\omega_{\mathcal{C}/O_K}$.
Original language | English |
---|---|
Publisher | arXiv.org |
Number of pages | 57 |
Publication status | Unpublished - 3 Mar 2020 |
Keywords
- hyperelliptic curves
- models of curves
- dualising sheaf