# Some infinite sequences of canonical covers of degree 2

## TL;DR

This paper introduces three new infinite families of algebraic surfaces of general type with canonical maps of degree 2, including one with base points, expanding the understanding of such surfaces.

## Contribution

It constructs three novel infinite families of surfaces with canonical maps of degree 2, including one with base points, which was not previously known.

## Key findings

- Three new infinite families of surfaces of general type with degree 2 canonical maps.
- One family has a canonical system with base points.
- Enhances classification of surfaces with canonical maps.

## Abstract

In this note, we construct three new infinite families of surfaces of general type with canonical map of degree 2 onto a surface of general type. For one of these families the canonical system has base points.