Normal lattices and coseparation of lattices

Let X be an arbitrary non-empty set, and let ℒ be a lattice of subsets of X such that ∅, X∈ℒ. We first summarize a number of known conditions which are equivalent to ℒ being normal. We then develop new equivalent conditions in terms of set functions associated with μ∈I(ℒ), the set of all non-trivial...

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Main Author: Barry B. Mittag
Format: Article
Language:English
Published: Wiley 1997-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171297000744
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author Barry B. Mittag
author_facet Barry B. Mittag
author_sort Barry B. Mittag
collection DOAJ
description Let X be an arbitrary non-empty set, and let ℒ be a lattice of subsets of X such that ∅, X∈ℒ. We first summarize a number of known conditions which are equivalent to ℒ being normal. We then develop new equivalent conditions in terms of set functions associated with μ∈I(ℒ), the set of all non-trivial, zero-one valued finitely additive measures on the algebra generated-by ℒ′. We finally generalize all the above to the situation where ℒ1 and ℒ2 are a pair of lattices of subsets of X with ℒ′1⊂ℒ2, and where we obtain equivalent conditions for ℒ1 to coseparate ℒ2.
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series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-66c8ffc52c9d4e90bbcde68c6d7f39b62025-08-20T02:23:44ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251997-01-0120355355910.1155/S0161171297000744Normal lattices and coseparation of latticesBarry B. Mittag0Department of Mathematics, Sacred Heart University, 5151 Park Avenue, Fairfield 06432-1000, CT, USALet X be an arbitrary non-empty set, and let ℒ be a lattice of subsets of X such that ∅, X∈ℒ. We first summarize a number of known conditions which are equivalent to ℒ being normal. We then develop new equivalent conditions in terms of set functions associated with μ∈I(ℒ), the set of all non-trivial, zero-one valued finitely additive measures on the algebra generated-by ℒ′. We finally generalize all the above to the situation where ℒ1 and ℒ2 are a pair of lattices of subsets of X with ℒ′1⊂ℒ2, and where we obtain equivalent conditions for ℒ1 to coseparate ℒ2.http://dx.doi.org/10.1155/S0161171297000744normal latticecoseparation of latticeszero-one valued measures associated outer measures.
spellingShingle Barry B. Mittag
Normal lattices and coseparation of lattices
International Journal of Mathematics and Mathematical Sciences
normal lattice
coseparation of lattices
zero-one valued measures
associated outer measures.
title Normal lattices and coseparation of lattices
title_full Normal lattices and coseparation of lattices
title_fullStr Normal lattices and coseparation of lattices
title_full_unstemmed Normal lattices and coseparation of lattices
title_short Normal lattices and coseparation of lattices
title_sort normal lattices and coseparation of lattices
topic normal lattice
coseparation of lattices
zero-one valued measures
associated outer measures.
url http://dx.doi.org/10.1155/S0161171297000744
work_keys_str_mv AT barrybmittag normallatticesandcoseparationoflattices