Topological Dualities for Modal Algebras

Fuente: arXiv
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Main Author: Collinson, Matthew
Format: Preprint
Published: 2026
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author Collinson, Matthew
author_facet Collinson, Matthew
contents We display a family of Stone-type dualities linking categories of frames carrying pairs of modal operators to categories of spaces carrying a binary relation. Different notions of morphism used on the relational side lead to significant variations in the point construction. We show how the situation simplifies in the case of semicontinuous relations, allowing for straightforward correspondences between modal axioms and relational properties.
format Preprint
id arxiv_https___arxiv_org_abs_2604_20603
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Topological Dualities for Modal Algebras
Collinson, Matthew
Category Theory
Logic in Computer Science
Logic
We display a family of Stone-type dualities linking categories of frames carrying pairs of modal operators to categories of spaces carrying a binary relation. Different notions of morphism used on the relational side lead to significant variations in the point construction. We show how the situation simplifies in the case of semicontinuous relations, allowing for straightforward correspondences between modal axioms and relational properties.
title Topological Dualities for Modal Algebras
topic Category Theory
Logic in Computer Science
Logic
url https://arxiv.org/abs/2604.20603