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Resolvability of abstract density topologies in Rn generated by lower or almost lower density operators

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Maximal resolvability and extraresolvability (with MA) of abstract density topologies in ℝn generated by lower or almost lower density operators are shown. We note that, in some models of ZFC, the abstract density topologies in ℝn generated by a lower density operator cannot be extraresolvable.

eISSN:
1210-3195
Lingua:
Inglese
Frequenza di pubblicazione:
3 volte all'anno
Argomenti della rivista:
Mathematics, General Mathematics