Abstract
We show that the existence of a homeomorphism between ω0⁎ and ω1⁎ entails the existence of a non-trivial autohomeomorphism of ω0⁎. This answers Problem 441 in [8]. We also discuss the joint consistency of various consequences of ω0⁎ and ω1⁎ being homeomorphic.
Original language | English |
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Pages (from-to) | 230-237 |
Number of pages | 8 |
Journal | Topology and Its Applications: a journal devoted to general, geometric, set-theoretic and algebraic topology |
Volume | 213 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- Katowice problem
- Homeomorphism
- Non-trivial autohomeomorphism
- Čech–Stone remainder
- ω0⁎
- ω1⁎
- Isomorphism
- Non-trivial automorphism
- Quotient algebra
- P(ω0)/fin
- P(ω1)/fin