The use of nonstandard methods to characterize properties of weak, strong and mixed extensions of congruences to ultrafilters has been the main topic of several recent papers, focused mostly on congruences and divisions. We show that similar methods can be used to extend these characterizations to arbitrary relations and their interplay.

Weak, Strong and Mixed Extensions of Relations to Spaces of Ultrafilters / L. Raffaello Maximilian Gasparro, L.L.B.. - In: MATHEMATICAL LOGIC QUARTERLY. - ISSN 0942-5616. - 72:3(2026), pp. 1-13. [10.1002/malq.70022]

Weak, Strong and Mixed Extensions of Relations to Spaces of Ultrafilters

L. Luperi Baglini
Ultimo
2026

Abstract

The use of nonstandard methods to characterize properties of weak, strong and mixed extensions of congruences to ultrafilters has been the main topic of several recent papers, focused mostly on congruences and divisions. We show that similar methods can be used to extend these characterizations to arbitrary relations and their interplay.
No
English
extensions of relations; nonstandard analysis; self-divisibility; ultrafilters;
Settore MATH-01/A - Logica matematica
Articolo
Esperti anonimi
Pubblicazione scientifica
   Logical methods in combinatorics
   MINISTERO DELL'UNIVERSITA' E DELLA RICERCA
   2022BXH4R5_001
2026
27-mag-2026
Wiley Blackwell Publishing
72
3
1
13
13
Pubblicato
Periodico con rilevanza internazionale
orcid
Aderisco
info:eu-repo/semantics/article
Weak, Strong and Mixed Extensions of Relations to Spaces of Ultrafilters / L. Raffaello Maximilian Gasparro, L.L.B.. - In: MATHEMATICAL LOGIC QUARTERLY. - ISSN 0942-5616. - 72:3(2026), pp. 1-13. [10.1002/malq.70022]
open
Prodotti della ricerca::01 - Articolo su periodico
2
262
Article (author)
Periodico con Impact Factor
L. Raffaello Maximilian Gasparro, L. Luperi Baglini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1249975
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