Toshimichi Usuba

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6ranked-venue papers
2as first author
2since 2021 · last 2025
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Theory of computation · 6 · 2 first-author · 2 since 2021
YearPublicationVenuePosition
2025 On Recurrence Axioms
Sakaé Fuchino, Toshimichi Usuba
Ann. Pure Appl. Log.2
2021 Strongly compact cardinals and the continuum function
Arthur W. Apter, Stamatis Dimopoulos, Toshimichi Usuba
Ann. Pure Appl. Log.3
2019 On the existence of skinny stationary subsets
Yo Matsubara, Hiroshi Sakai, Toshimichi Usuba
Ann. Pure Appl. Log.3
2012 Two-cardinal versions of weak compactness: Partitions of pairs
Pierre Matet, Toshimichi Usuba
Ann. Pure Appl. Log.2
2012 Splitting stationary sets in (λ)
abstract
Abstract LetAbe a non-empty set. A set is said to be stationary in if for everyf: [A]<ω→Athere existsxϵSsuch thatx≠Aandf“[x]<ω⊆x. In this paper we prove the following: For an uncountable cardinal λ and a stationary setSin , if there is a regular uncountable cardinalκ≤ λ such that {xϵS:x∩κϵκ} is stationary, thenScan be split intoκdisjoint stationary subsets.
Toshimichi Usuba
J. Symb. Log.1
2007 Local saturation of the non-stationary ideal over Pklambda
Toshimichi Usuba
Ann. Pure Appl. Log.1