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arXiv · 2506.04692

Weak, strong and mixed extensions of relations to spaces of ultrafilters

Leonardo Raffaello Maximilian Gasparro·Lorenzo Luperi Baglini
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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. We show that similar methods can be used to characterize the extensions of arbitrary realtions and their interplay.

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Leonardo Raffaello Maximilian Gasparro, Lorenzo Luperi Baglini. 2025-06-05. Weak, strong and mixed extensions of relations to spaces of ultrafilters. https://arxiv.org/abs/2506.04692

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