Real Analysis

This book is meant as a text for a first-year graduate course in analysis. In a sense, the subject matter covers the same topics as elementary calculus - linear algebra, differentiation, integration - but treated in a manner suitable for people who will be using it in further mathematical investigations. The book begins with point-set topology, essential for all analysis. The second part deals with the two basic spaces of analysis, Banach and Hilbert spaces. The book then turns to the subject of integration and measure. After a general introduction, it covers duality and representation theorems, some applications (such as Dirac sequences and Fourier transforms), integration and measures on locally compact spaces, the Riemann-Stjeltes integral, distributions, and integration on locally compact groups. Part four deals with differential calculus (with values in a Banach space). The next part deals with functional analysis. It includes several major spectral theorems of analysis, showing how one can extend to infinite dimensions certain results from finite-dimensional linear algebra; a discussion of compact and Fredholm operators; and spectral theorems for Hermitian operators. The final part, on global analysis, provides an introduction to differentiable manifolds. The text includes worked examples and numerous exercises, which should be viewed as an integral part of the book. The organization of the book avoids long chains of logical interdependence, so that chapters are as independent as possible. This allows a course using the book to omit material from some chapters without compromising the exposition of material from later chapters. Real Analysis is designed for a basic graduate course in real analysis. This textbook covers the fundamentals of measure and integration theory, and of functional analysis. The author has incorporated the suggestions of users of the first edition to make this an even more useful textbook for beginning graduate students. This second edition contains many more exercises than the first, including concrete applications of the general theory. As well as the pedagogic treatment of basic material, some topics are treated at a more advanced level, including the spectral theory for unbounded operators, the law of large numbers, and Stokes's Theorem on manifolds. This advanced material also makes the book useful as a reference source. --back cover