# The unirational components of the strata of genus $11$ curves with several pencils of degree $6$ in $\mathcal{M}_{11}$

## TL;DR

This paper proves the existence of unirational irreducible components within certain strata of genus 11 curves with multiple pencils of degree 6, using constructions from plane curves with specified singularities.

## Contribution

It establishes the unirationality of specific components of the moduli space of genus 11 curves with multiple degree 6 pencils, via explicit geometric constructions.

## Key findings

- Unirational irreducible components exist for 5 ≤ k ≤ 9 in the strata of genus 11 curves with k pencils.
- Degree 9 plane curves with specified singularities dominate these components.
- Degree 8 plane curves with 10 double points cover an excess dimension component.

## Abstract

We show that the strata $ \mathcal{M}_{11,6}(k) \subset \mathcal{M}_{11} $ of $ 6-$gonal curves of genus $ 11 $, equipped with $k$ mutually independent and type I pencils of degree six, have a unirational irreducible component for $5\leq k\leq 9$. The unirational families arise from degree $ 9 $ plane curves with $ 4 $ ordinary triple and $ 5 $ ordinary double points that dominate an irreducible component of expected dimension. We will further show that the family of degree $ 8 $ plane curves with $ 10 $ ordinary double points covers an irreducible component of excess dimension in $ \mathcal{M}_{11,6}(10) $.