Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Arthur W. Apter"'
Autor:
ARTHUR W. APTER
Publikováno v:
The Journal of Symbolic Logic. :1-9
We show the consistency, relative to the appropriate supercompactness or strong compactness assumptions, of the existence of a non-supercompact strongly compact cardinal $\kappa _0$ (the least measurable cardinal) exhibiting properties which are impo
Autor:
Arthur W. Apter
Publikováno v:
Mathematical Logic Quarterly. 68:304-309
Autor:
Arthur W. Apter
Publikováno v:
The Journal of Symbolic Logic. 87:214-227
We prove two theorems concerning indestructibility properties of the first two strongly compact cardinals when these cardinals are in addition the first two measurable cardinals. Starting from two supercompact cardinals $\kappa _1 < \kappa _2$ , we f
Autor:
Arthur W. Apter
Publikováno v:
Bollettino dell'Unione Matematica Italiana.
Autor:
Arthur W. Apter
Publikováno v:
Mathematical Logic Quarterly. 66:115-120
Autor:
Arthur W. Apter
Publikováno v:
Bulletin of the Polish Academy of Sciences Mathematics. 68:1-10
Autor:
Arthur W. Apter, James Cummings
Publikováno v:
The Journal of Symbolic Logic. 84:178-204
We study the number of normal measures on a tall cardinal. Our main results are that:•The least tall cardinal may coincide with the least measurable cardinal and carry as many normal measures as desired.•The least measurable limit of tall cardina
Autor:
Arthur W. Apter
Publikováno v:
Tbilisi Mathematical Journal. 14
We show that assuming the consistency of certain large cardinals (namely a supercompact cardinal with a measurable cardinal above it of the appropriate Mitchell order) together with the Ultrapower Axiom UA introduced by Goldberg in [3], it is possibl
Publikováno v:
Annals of Pure and Applied Logic. 172:103013
We study the general problem of the behaviour of the continuum function in the presence of non-supercompact strongly compact cardinals. We begin by showing that it is possible to force violations of GCH at an arbitrary strongly compact cardinal using
Publikováno v:
Proceedings of the American Mathematical Society. 146:773-783
We exhibit models of set theory, using large cardinals and forcing, in which successor cardinals can be made singular by some “Namba-like” further set forcing, in most cases without collapsing cardinals below that successor cardinal. For successo