Non-trivial copies of N*

2024/06/05 by Dow, Alan
#03A35 54D35 #FOS: Mathematics #General Topology (math.GN) #Logic (math.LO)

paper · doi:10.48550/arxiv.2406.03471

Abstract

We show that it is consistent to have regular closed non-clopen copies of \mathbb N^* within \mathbb N^* and a non-trivial self-map of \mathbb N^* even if all autohomeomorphisms of \mathbb N^* are trivial.

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