Results 51 to 60 of about 218 (121)

Aronszajn trees on ℵ2 and ℵ3

open access: yes, 1983
Assuming the existence of a supercompact cardinal and a weakly compact cardinal above it, we provide a generic extension where there are no Aronszajn trees of height ω2 or ω3.
Abraham, Uri
core   +1 more source

Flipping properties and supercompact cardinals [PDF]

open access: yesFundamenta Mathematicae, 1980
Di Prisco, Carlos A.   +1 more
openaire   +2 more sources

Successors of singular cardinals and measurability

open access: yes, 1985
It is shown, starting from a model in which κ < λ, κ is 2λ supercompact, and λ is a measurable cardinal, how to force and obtain a model in which the Axiom of Choice is false and in which the successor of a singular cardinal is ...
Apter, Arthur W, Arthur W Apter
core   +1 more source

PFA and the definability of the nonstationary ideal

open access: yes, 2023
We produce, relative to a ${\sf ZFC}$ model with a supercompact cardinal, a ${\sf ZFC}$ model of the Proper Forcing Axiom in which the nonstationary ideal on $\omega_1$ is $\Pi_1$-definable in a parameter from $H_{\aleph_2}$
Schindler, Ralf   +3 more
core  

The Ultrapower Axiom implies GCH above a supercompact cardinal

open access: yes, 2018
We prove that the Generalized Continuum Hypothesis holds above a supercompact cardinal assuming the Ultrapower Axiom, an abstract comparison principle motivated by inner model theory at the level of supercompact cardinals.
openaire   +2 more sources

On the consistency of local and global versions of Chang’s Conjecture

open access: yes, 2017
We show that for many pairs of infinite cardinals κ > μ + > μ \kappa > \mu ^+ > \mu , ( κ + ,
Yair Hayut, Monroe Eskew
core   +1 more source

The Ultimate L Conjecture and Inner Models for Supercompact Cardinals

open access: yes
The Inner Model Program, initiated by Gödel's construction of L, seeks to provide canonical, fine-structural inner models for large cardinal axioms. While successful up to the level of Woodin cardinals, the program faces a significant barrier at the level of supercompact cardinals due to the complexity of iteration strategies.
Revista, Zen, MFC, 10
openaire   +2 more sources

Filter spaces: towards a unified theory of large cardinal and embedding axioms

open access: yes, 1989
We construct a parametrized framework, at the center of which is a space D and the notion of a fine, normal ultrafilter on that space. The assertion that such a filter exists is a statement of varying power.
Henle, James   +7 more
core   +1 more source

Epireflections and supercompact cardinals

open access: yes
We prove that, under suitable assumptions on a category C, the existence of supercompact cardinals implies that every absolute epireflective class of objects of C is a small-orthogonality class.
Casacuberta i Vergés, Carles   +3 more
core  

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