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On fraction-dense algebraic frames

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Abstract

We abstract the notion of fraction-density of f-rings (introduced by Anthony Hager and Jorge Martínez) to algebraic frames. We say an algebraic frame with the finite intersection property on compact elements is fraction-dense if each of its polars is a polar of a compact element. This turns out to be a “conservative” extension of the fraction-density property in the sense that a reduced f-ring is fraction-dense precisely when its frame of radical ideals is fraction-dense. We characterize these frames and study properties of some other types of algebraic frames that arise naturally in the characterizations of the fraction-dense ones.

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Correspondence to Papiya Bhattacharjee.

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Presented by V. Marra

In memory of Professor Jorge Martínez.

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Dube acknowledges funding from the National Research Foundation of South Africa under Grant Number 113829.

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Bhattacharjee, P., Dube, T. On fraction-dense algebraic frames. Algebra Univers. 83, 6 (2022). https://doi.org/10.1007/s00012-021-00763-0

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