Results 101 to 110 of about 377 (170)

Forcing Axioms for Proper Posets Preserving a Topological Property: Consistency Results

open access: yes
Forcing axioms are generalizations of Baire category principles that allow one to intersect more dense open sets and to do so in a wider variety of circumstances. In this paper we introduce two new forcing axioms related to posets which preserve topological properties of various spaces, specifically the properties of Lindel{ö}f and countably tight. The
openaire   +2 more sources

Diamond on Kurepa trees. [PDF]

open access: yesMon Hefte Math
Kostana Z, Rinot A, Shelah S.
europepmc   +1 more source

The Ramsey property implies no mad families. [PDF]

open access: yesProc Natl Acad Sci U S A, 2019
Schrittesser D, Törnquist A.
europepmc   +1 more source

Poster Sessions

open access: yes
HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

Publication Only

open access: yes
HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

PFA and the Definability of the Nonstationary Ideal

open access: yes
We produce, relative to a ZFC model with a supercompact cardinal, a ZFC model of the Proper Forcing Axiom in which the nonstationary ideal on ω1 is ∏1-definable in a parameter from ...
Larson, Paul; orcid:   +3 more
core   +1 more source

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