Measure and Integral: An Introduction to Real Analysis, Second Edition

ISBN-13: 9781498702898 / Angielski / Twarda / 2015 / 536 str.

Richard L. Wheeden

Opis

Now considered a classic text on the topic, Measure and Integral: An Introduction to Real Analysis provides an introduction to real analysis by first developing the theory of measure and integration in the simple setting of Euclidean space, and then presenting a more general treatment based on abstract notions characterized by axioms and with less geometric content. Published nearly forty years after the first edition, this long-awaited Second Edition also:

• Studies the Fourier transform of functions in the spaces L¹, L², and L^p, 1 p
• Shows the Hilbert transform to be a bounded operator on L², as an application of the L² theory of the Fourier transform in the one-dimensional case
• Covers fractional integration and some topics related to mean oscillation properties of functions, such as the classes of Holder continuous functions and the space of functions of bounded mean oscillation
• Derives a subrepresentation formula, which in higher dimensions plays a role roughly similar to the one played by the fundamental theorem of calculus in one dimension
• Extends the subrepresentation formula derived for smooth functions to functions with a weak gradient
• Applies the norm estimates derived for fractional integral operators to obtain local and global first-order Poincare Sobolev inequalities, including endpoint cases
• Proves the existence of a tangent plane to the graph of a Lipschitz function of several variables
• Includes many new exercises not present in the first edition

This widely used and highly respected text for upper-division undergraduate and first-year graduate students of mathematics, statistics, probability, or engineering is revised for a new generation of students and instructors. The book also serves as a handy reference for professional mathematicians."

Spis treści

Preliminaries. Functions of Bounded Variation and the Riemann–Stieltjes Integral. Lebesgue Measure and Outer Measure. Lebesgue Measurable Functions. The Lebesgue Integral. Repeated Integration. Differentiation. L^p Classes. Approximations of the Identity and Maximal Functions. Abstract Integration. Outer Measure and Measure. A Few Facts from Harmonic Analysis. The Fourier Transform. Fractional Integration. Weak Derivatives and Poincaré–Sobolev Estimates.