Realising countable groups as automorphisms of origamis on the Loch Ness monster

Abstract

It is known that every finite group can be represented as the full group of automorphisms of a suitable compact origami. In this paper, we provide a short argument to note that the same holds for any countable group by considering origamis on the Loch Ness monster.

arXiv commentarXiv admin note: text overlap with arXiv:2108.00900