On The Function Rings of Pointfree Topology

• Journal title : Kyungpook mathematical journal
• Volume 48, Issue 2,  2008, pp.195-206
• Publisher : Department of Mathematics, Kyungpook National University
• DOI : 10.5666/KMJ.2008.48.2.195
Title & Authors
On The Function Rings of Pointfree Topology
Banaschewski, Bernhard;

Abstract
The purpose of this note is to compare the rings of continuous functions, integer-valued or real-valued, in pointfree topology with those in classical topology. To this end, it first characterizes the Boolean frames (= complete Boolean algebras) whose function rings are isomorphic to a classical one and then employs this to exhibit a large class of frames for which the functions rings are not of this kind. An interesting feature of the considerations involved here is the use made of nonmeasurable cardinals. In addition, the integer-valued function rings for Boolean frames are described in terms of internal lattice-ordered ring properties.
Keywords
ring of continuous functions in pointfree topology;Boolean frames and their $\small{\sigma}$-characters;nonmeasurable cardinals;order complete f-rings with singular unit;
Language
English
Cited by
1.
Covering maximal ideals with minimal primes, Algebra universalis, 2015, 74, 3-4, 411
2.
More ring-theoretic characterizations of P-frames, Journal of Algebra and Its Applications, 2015, 14, 05, 1550061
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