Linear Functional Analysis
Authors: Rynne, Bryan, Youngson, M.A.
 Contains a new chapter on the HahnBanach theorem and its applications to the theory of duality
 Extended coverage of the uniform boundedness theorem
 Plenty of exercises with solutions provided at the back of the book.
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 About this Textbook

This introduction to the ideas and methods of linear functional analysis shows how familiar and useful concepts from finitedimensional linear algebra can be extended or generalized to infinitedimensional spaces. Aimed at advanced undergraduates in mathematics and physics, the book assumes a standard background of linear algebra, real analysis (including the theory of metric spaces), and Lebesgue integration, although an introductory chapter summarizes the requisite material.
The initial chapters develop the theory of infinitedimensional normed spaces, in particular Hilbert spaces, after which the emphasis shifts to studying operators between such spaces. Functional analysis has applications to a vast range of areas of mathematics; the final chapters discuss the particularly important areas of integral and differential equations.
Further highlights of the second edition include:
a new chapter on the Hahn–Banach theorem and its applications to the theory of duality. This chapter also introduces the basic properties of projection operators on Banach spaces, and weak convergence of sequences in Banach spaces  topics that have applications to both linear and nonlinear functional analysis;
extended coverage of the uniform boundedness theorem;
plenty of exercises, with solutions provided at the back of the book.
Praise for the first edition:
"The authors write with a strong narrative thrust and a sensitive appreciation of the needs of the average student so that, by the final chapter, there is a real feeling of having 'gotten somewhere worth getting' by a sensibly paced, clearly signposted route." Mathematical Gazette
"It is a fine book, with material wellorganized and wellpresented. A particularly useful feature is the material on compact operators and applications to differential equations." CHOICE
 Reviews

From the reviews of the second edition:
"The authors write with a strong narrative thrust and a sensitive appreciation of the needs of the average student so that, by the final chapter, there is a real feeling of having "gotten somewhere worth getting" by a sensibly paced, clearly signposted route." Mathematical Gazette, 2000
"It is a fine book, with material wellorganized and wellpresented. A particularly useful feature is the material on compact operators and applications to differential equations." CHOICE magazine
"The presentation is quite elementary, and there are sufficiently many illuminating examples and exercises… this nice textbook perfectly fits the readership, i.e., undergraduate students in mathematics and physics… It may be recommended to all students who want to get in touch with the basic ideas of functional analysis and operator theory for the first time." Zentralblatt MATH
“I highly recommend this book for independent study or as a supplement to a text. You can see if you’re on the right track with exercises because the text has solutions and hints in the back. … This undergrad text is extremely clear, with lots of examples and exercises.” (Philosophy, Religion and Science Book Reviews, bookinspections.wordpress.com, October, 2013)
“This is the second edition of a gentle introduction to basic normed, linear functional analysis. … it provides a first course on the topic on an (early) undergraduate level. … The text is carefully written and the clear and precise style makes it an easy read. The book contains many instructive examples and a wealth of exercises including solutions.” (R. Steinbauer, Monatshefte für Mathematik, Vol. 162 (3), March, 2011)
“This book is an excellent introductory textbook for upperlevel undergraduate (pure) mathematics students and is very well written with much care given to clear, precise, and complete notation and argumentation. … Plenty of crossreferences are included to point the reader to relevant material covered earlier in the book.” (Greg E. Fasshauer, SIAM Review, Vol. 52 (1), 2010)
"This is an undergraduate introduction to functional analysis, with minimal prerequisites, namely linear algebra and some real analysis. … It is extensively crossreferenced, has a good index, a separate index of symbols (Very Good Feature), and complete solutions to all the exercises. It has numerous examples, and is especially good in giving both examples of objects that have a given property and objects that do not have the property." (Allen Stenger, MathDL, April, 2008)
"This second revised edition of the book … covers the normed aspects in functional analysis and consists of the preface, eight chapters, solutions to exercises (at the end of the book), a bibliography containing 17 references, notation index and subject index. … The book is readable and conceptually useful for undergraduate students in mathematics and physics. The authors show well how essential concepts from finitedimensional linear algebra can be extended to the infinitedimensional case." (Mohammad Sal Moslehian, Zentralblatt MATH, Vol. 1144, 2008)
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Bibliographic Information
 Bibliographic Information

 Book Title
 Linear Functional Analysis
 Authors

 Bryan Rynne
 M.A. Youngson
 Series Title
 Springer Undergraduate Mathematics Series
 Copyright
 2008
 Publisher
 SpringerVerlag London
 Copyright Holder
 SpringerVerlag London
 eBook ISBN
 9781848000056
 DOI
 10.1007/9781848000056
 Softcover ISBN
 9781848000049
 Series ISSN
 16152085
 Edition Number
 2
 Number of Pages
 X, 324
 Number of Illustrations and Tables
 6 b/w illustrations
 Topics