Nonmeasurable Sets and Functions: Volume 195 (North-Holland Mathematics Studies #195) (Hardcover)

Nonmeasurable Sets and Functions: Volume 195 (North-Holland Mathematics Studies #195) By Alexander Kharazishvili Cover Image

Nonmeasurable Sets and Functions: Volume 195 (North-Holland Mathematics Studies #195) (Hardcover)

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The book is devoted to various constructions of sets which are nonmeasurable with respect to invariant (more generally, quasi-invariant) measures. Our starting point is the classical Vitali theorem stating the existence of subsets of the real line which are not measurable in the Lebesgue sense. This theorem stimulated the development of the following interesting topics in mathematics:1. Paradoxical decompositions of sets in finite-dimensional Euclidean spaces;2. The theory of non-real-valued-measurable cardinals;3. The theory of invariant (quasi-invariant)extensions of invariant (quasi-invariant) measures.These topics are under consideration in the book. The role of nonmeasurable sets (functions) in point set theory and real analysis is underlined and various classes of such sets (functions) are investigated . Among them there are: Vitali sets, Bernstein sets, Sierpinski sets, nontrivial solutions of the Cauchy functional equation, absolutely nonmeasurable sets in uncountable groups, absolutely nonmeasurable additive functions, thick uniform subsets of the plane, small nonmeasurable sets, absolutely negligible sets, etc. The importance of properties of nonmeasurable sets for various aspects of the measure extension problem is shown. It is also demonstrated that there are close relationships between the existence of nonmeasurable sets and some deep questions of axiomatic set theory, infinite combinatorics, set-theoretical topology, general theory of commutative groups. Many open attractive problems are formulated concerning nonmeasurable sets and functions.
Product Details ISBN: 9780444516268
ISBN-10: 0444516263
Publisher: Elsevier Science
Publication Date: September 1st, 1999
Pages: 349
Language: English
Series: North-Holland Mathematics Studies