By J. Donald Monk

This booklet is worried with cardinal quantity valued features outlined for any Boolean algebra. Examples of such services are independence, which assigns to every Boolean algebra the supremum of the cardinalities of its unfastened subalgebras, and cellularity, which supplies the supremum of cardinalities of units of pairwise disjoint parts. Twenty-one such features are studied intimately, and plenty of extra in passing. The questions thought of are the behaviour of those services less than algebraic operations equivalent to items, loose items, ultraproducts, and their relationships to at least one another.

Assuming familiarity with basically the fundamentals of Boolean algebras and set concept, via easy countless combinatorics and forcing, the e-book reports present wisdom approximately those capabilities, giving whole proofs for many proof. a distinct function of the e-book is the eye given to open difficulties, of which 185 are formulated.

Based on Cardinal services on Boolean Algebras (1990) and Cardinal Invariants on Boolean Algebras (1996) via a similar writer, the current paintings is way greater than both of those. It comprises ideas to a few of the open difficulties of the sooner volumes. one of the new themes are continuum cardinals on Boolean algebras, with a long remedy of the reaping quantity. Diagrams on the finish of the ebook summarize the relationships among the capabilities for plenty of vital sessions of Boolean algebras, together with period algebras, tree algebras and superatomic algebras.

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