Chang models over derived models with supercompact measures

Based on earlier work of the third author, we construct a Chang-type model with supercompact measures extending a derived model of a given hod mouse with a regular cardinal [Formula: see text] that is both a limit of Woodin cardinals and a limit of [Formula: see text]-strong cardinals. The existence of such a hod mouse is consistent relative to a Woodin cardinal that is a limit of Woodin cardinals. We argue that our Chang-type model satisfies [Formula: see text] is regular + [Formula: see text] is [Formula: see text]-supercompact for some regular cardinal [Formula: see text]. This complements Woodin’s generalized Chang model, which satisfies [Formula: see text] is supercompact, assuming a proper class of Woodin cardinals that are limits of Woodin cardinals.

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Publication Details

Journal
Journal of Mathematical Logic
Published
2025-03-01
DOI
https://doi.org/10.1142/s0219061325500072
Primary Topic
Advanced Topics in Algebra
Type
article
Field-Weighted Citation Impact
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article

Chang models over derived models with supercompact measures

Stefan Müller, Takehiko Gappo, Grigor Sargsyan
Journal of Mathematical Logic
Advanced Topics in Algebra
article

Chang models over derived models with supercompact measures

Stefan Müller, Takehiko Gappo, Grigor Sargsyan
article en

Abstract

Based on earlier work of the third author, we construct a Chang-type model with supercompact measures extending a derived model of a given hod mouse with a regular cardinal [Formula: see text] that is both a limit of Woodin cardinals and a limit of [Formula: see text]-strong cardinals. The existence of such a hod mouse is consistent relative to a Woodin cardinal that is a limit of Woodin cardinals. We argue that our Chang-type model satisfies [Formula: see text] is regular + [Formula: see text] is [Formula: see text]-supercompact for some regular cardinal [Formula: see text]. This complements Woodin’s generalized Chang model, which satisfies [Formula: see text] is supercompact, assuming a proper class of Woodin cardinals that are limits of Woodin cardinals.

Journal of Mathematical Logic
TU Wien (AT), Instytut Oceanologii Polskiej Akademii Nauk (PL)
Openalex Percentile: Top 93%
Advanced Topics in Algebra
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