Lectures on Functional Analysis and the Lebesgue Integral


Lectures on Functional Analysis and the Lebesgue Integral
Springer | Analysis | July 5, 2016 | ISBN-10: 1447168100 | 405 pages | pdf | 4.79 mb

Authors: Komornik, Vilmos
Develops functional analysis in an original way, motivated by natural examples of plane geometry
Provides many examples and counterexamples to help the reader understand the meaning, usefulness and optimality of most notions and theorems
Offers a large number of remarks and footnotes, which point readers to the historical origins and development of most notions and results

This textbook, based on three series of lectures held by the author at the University of Strasbourg, presents functional analysis in a non-traditional way by generalizing elementary theorems of plane geometry to spaces of arbitrary dimension. This approach leads naturally to the basic notions and theorems. Most results are illustrated by the small ℓp spaces. The Lebesgue integral, meanwhile, is treated via the direct approach of Frigyes Riesz, whose constructive definition of measurable functions leads to optimal, clear-cut versions of the classical theorems of Fubini-Tonelli and Radon-Nikodým.
Lectures on Functional Analysis and the Lebesgue Integral presents the most important topics for students, with short, elegant proofs. The exposition style follows the Hungarian mathematical tradition of Paul Erdős and others. The order of the first two parts, functional analysis and the Lebesgue integral, may be reversed. In the third and final part they are combined to study various spaces of continuous and integrable functions. Several beautiful, but almost forgotten, classical theorems are also included.
Both undergraduate and graduate students in pure and applied mathematics, physics and engineering will find this textbook useful. Only basic topological notions and results are used and various simple but pertinent examples and exercises illustrate the usefulness and optimality of most theorems. Many of these examples are new or difficult to localize in the literature, and the original sources of most notions and results are indicated to help the reader understand the genesis and development of the field.

Number of Illustrations and Tables
46 b/w illustrations
Functional Analysis
Measure and Integration
Approximations and Expansions

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