On projections of the tails of a power

Samuel M. Corson*, Saharon Shelah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Let be an inaccessible cardinal, universal algebra, and ∼ the equivalence relation on U κ of eventual equality. From mild assumptions on we give general constructions of End (U κ / ∼) satisfying E=E which do not descend from Δ (U κ) having small strong supports. As an application, there exists an E End (Z κ / ∼) which does not come from a Δ End (Z κ).

Original languageEnglish
Pages (from-to)955-971
Number of pages17
JournalForum Mathematicum
Volume36
Issue number4
DOIs
StatePublished - 1 Jul 2024

Bibliographical note

Publisher Copyright:
© 2024 Walter de Gruyter GmbH, Berlin/Boston.

Keywords

  • Endomorphism
  • idempotence
  • inaccessible cardinal

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