內容簡介top Measure and Integral 簡介 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 Editionalso:Studies the Fourier transform of functions in the spaces L1,L2, and Lp, 1 < p < 2Shows the Hilbert transform to be a bounded operator on L2, as an application of theL2 theory in the one-dimensional caseCovers fractional integration and some topics related to mean oscillation properties of functions, such as the classes of H闤der continuous functions and the space of functions of bounded mean oscillationDerives a subrepresentation formula, which in higher dimensions plays a role roughly similar to the one played by the fundamental theorem of calculus in one dimensionExtends the subrepresentation formula derived for smooth functions to functions with a weak gradientApplies the norm estimates derived for fractional integral operators to obtain local and global first-order Poincar?Sobolev inequalities, including endpoint casesProves the existence of a tangent plane to the graph of a Lipschitz function of several variablesIncludes many new exercises not present in the first editionThis 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.