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.
Similar content being viewed by others
References
Azarpanah, F.: Intersection of essential ideals in \(C(X)\). Proc. Am. Math. Soc. 125, 2149–2154 (1997)
Banaschewski, B.: Radical ideals and coherent frames. Comment. Math. Univ. Carolin. 37, 349–370 (1996)
Banaschewski, B.: Gelfand and exchange rings: their spectra in pointfree topology. Arab. J. Sci. Eng. 25, 3–22 (2003)
Banaschewski, B., Pultr, A.: Booleanization. Cahiers Topologie Géom. Diff. Catég. 37, 41–60 (1996)
Bhattacharjee, P.: Two spaces of minimal primes. J. Algebra. Appl. 11(1), 1250014 (2012). (18 pages)
Dube, T., Nsayi, J.N.: When certain prime ideals in rings of continuous functions are minimal or maximal. Topol. Appl. 192, 98–112 (2015)
Dube, T., Walters-Wayland, J.: Coz-onto frame maps and some applications. Appl. Categ. Struct. 15, 119–133 (2007)
Gillman, L., Jerison, M.: Rings of Continuous Functions. Van Nostrand, Princeton (1960)
Hager, A.W., Martínez, J.: Fraction-dense algebras and spaces. Can. J. Math. 45, 977–996 (1993)
Hager, A.W., Martínez, J.: Patch-generated frames and projectable hulls. Appl. Categ. Struct. 15, 49–80 (2007)
Henriksen, M., Vermeer, J., Woods, R.W.: Wallman covers of compact spaces. Diss. Math. (Rozprawy Mat.) 280 (1989)
Henriksen, M., Walters-Wayland, J.: A pointfree study of bases for spaces of minimal prime ideals. Quaest. Math. 26, 333–346 (2003)
Ighedo, O., Mugochi, M. M.: Locales whose coz-complemented cozero sublocales have open closure. Algebra Univ. 81, Article 17 (2020)
Johnstone, P.T.: Stone Spaces. Cambridge University Press, Cambridge (1982)
Martinez, J.: Archimedeam lattices. Algebra Univ. 3, 247–260 (1973)
Martínez, J.: Unit and kernel systems in algebraic frames. Algebra Univ. 55, 13–43 (2006)
Martínez, J., Zenk, E.R.: When an algebraic frame is regular. Algebra Univ. 50, 231–257 (2003)
Martínez, J., Zenk, E.R.: Yosida frames. J. Pure Appl. Algebra 204, 473–492 (2006)
Picado, J., Pultr, A.: Frames and Locales: Topology Without Points. Frontiers in Mathematics, Springer, Basel (2012)
Author information
Authors and Affiliations
Corresponding author
Additional information
Presented by V. Marra
In memory of Professor Jorge Martínez.
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Dube acknowledges funding from the National Research Foundation of South Africa under Grant Number 113829.
Rights and permissions
About this article
Cite this article
Bhattacharjee, P., Dube, T. On fraction-dense algebraic frames. Algebra Univers. 83, 6 (2022). https://doi.org/10.1007/s00012-021-00763-0
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00012-021-00763-0