Some surfaces with canonical map of degree 4
arXiv:2107.07966
Abstract
In this short note we construct unbounded families of minimal surfaces of general type with canonical map of degree 4 such that the limits of the slopes assume countably many different values among 6+2/3 and 8.
arXiv comment8 pages,v2: added a reference, v3: minor changes, final version to appear on Port. Math