Abstract

This is the second part of our study of epimorphisms with source a thick generalized $m$-gon and target a thin generalized $m$-gon. We classify the case $m=8$ when the polygons are finite (in the first part (2022) we handled the cases $m=3,4$ and $6$). Then we show that the infinite case is very different, and construct examples which strongly differ from the finite case. A number of general structure theorems are obtained, and we also take a look at the infinite case for general gonality.

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