Elementary Functional Analysis (92 results)

paperback. Condition: Good.

Paperback. Condition: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

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Soft cover. Condition: Very Good. 2nd Edition. Discoloration on bottom page edge. No names, underlining, notes or highlighting. h1.

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Condition: Brand New. New.SoftCover International edition. Different ISBN and Cover image but contents are same as US edition.Expediting shipping for all USA and Europe orders excluding PO Box. Excellent Customer Service.

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hardcover. Condition: Very Good. Hardcover. No dust jacket. Red cloth boards with silver lettering on the spine. Some discoloration on edges front shelf wear. Previous owners name on front free endpaper. Overall very good condition, pages are crisp, binding is strong. No date on the title page. Copyright page dated 1974. 334 pages. We are a real brick and mortar bookstore and ship books everyday. This listing was written by an actual person with the book in front of them for inspection. Please email with questions or to request photographs. …

N.A. Condition: New. ISBN:9781493991105.

Paperback. Condition: new. New Copy. Customer Service Guaranteed.

Hardcover. Condition: Sehr gut. X, 208 p. Sehr guter Zustand. Minimale Lager- bzw. Gebrauchsspuren. Seiten sauber. / Very good. Minimal wear. Clean pages. Sprache: Englisch Gewicht in Gramm: 580.

Condition: New. Brand New! Fast Delivery This is an International Edition and ship within 24-48 hours. Deliver by FedEx and Dhl, & Aramex, UPS, & USPS and we do accept APO and PO BOX Addresses. Order can be delivered worldwide within 6-10 days and we do have flat rate for up to 2LB. Extra shipping charges will be requested if the Book weight is more than 5 LB. This Item May be shipped from India, United states & United Kingdom. Depending on your location and availability.…

Soft cover. Condition: Good. No jacket. Cover is lightly faded, worn, and soiled. Outer corners of the book are creased, affecting covers and pages. Crease is much more significant on top corner. Inside pages are clean and unmarked.

Condition: Good. Envoi rapide livre en très bon état avec sa jaquette (défraîchie) intérieur propre. in8. 1974. Cartonné jaquette. Good.

Condition: New.

Condition: New.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Soft cover. Condition: New. Contents: Preface. 1. Inner product spaces. 2. Normed spaces. 3. Distance and approximation. 4. Continuity and compactness. 5. Banach spaces. 6. The contraction principle. 7. The Lebesgue spaces. 8. Hilbert space fundamentals. 9. Approximation theory and Fourier analysis. 10. Sobolev spaces and the Poisson problem. 11. Operator theory I. 12. Operator theory II. 13. Spectral theory of compact self-adjoint operators. 14. Applications of the spectral theorem. 15. Baire s theorem and its consequences. 16. Duality and the Hahn-Banach theorem. Historical remarks. Appendices. Bibliography. This book introduces functional analysis at an elementary level without assuming any background in real analysis, for example on metric spaces or Lebesgue integration. It focuses on concepts and methods relevant in applied contexts such as variational methods on Hilbert spaces, Neumann series, eigenvalue expansions for compact self-adjoint operators, weak differentiation and Sobolev spaces on intervals, and model applications to differential and integral equations. Beyond that, the final chapters on the uniform boundedness theorem, the open mapping theorem and the Hahn Banach theorem provide a stepping-stone to more advanced texts. The exposition is clear and rigorous, featuring full and detailed proofs. Many examples illustrate the new notions and results. Each chapter concludes with a large collection of exercises, some of which are referred to in the margin of the text, tailor-made in order to guide the student digesting the new material. Optional sections and chapters supplement the mandatory parts and allow for modular teaching spanning from basic to honors track level. …

Hard cover. Condition: Very good. No jacket. Corners of boards and spine are lightly bumped, but binding is tight. Inside is clean and unmarked.

Condition: As New. Unread book in perfect condition.

Condition: As New. Unread book in perfect condition.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Condition: New.

Condition: New.

Paperback. Condition: New. While there is a plethora of excellent, but mostly "tell-it-all'' books on the subject, this one is intended to take a unique place in what today seems to be a still wide open niche for an introductory text on the basics of functional analysis to be taught within the existing constraints of the standard, for the United States, one-semester graduate curriculum (fifteen weeks with two seventy-five-minute lectures per week).? The book consists of seven chapters and an appendix taking the reader from the fundamentals of abstract spaces (metric, vector, normed vector, and inner product), through the basics of linear operators and functionals, the three fundamental principles (the Hahn-Banach Theorem, the Uniform Boundedness Principle, the Open Mapping Theorem and its equivalents: the Inverse Mapping and Closed Graph Theorems) with their numerous profound implications and certain interesting applications, to the elements of the duality and reflexivity theory. Chapter 1 outlines some necessary preliminaries, while the Appendix gives a concise discourse on the celebrated Axiom of Choice, its equivalents (the Hausdorff Maximal Principle, Zorn's Lemma, and Zermello's Well-Ordering Principle), and ordered sets.? Being designed as a text to be used in a classroom, the book constantly calls for the student's actively mastering the knowledge of the subject matter. It contains 112 Problems, which are indispensable for understanding and moving forward. Many important statements are given as problems, a lot of these are frequently referred to and used in the main body. There are also 376 Exercises throughout the text, including Chapter 1 and the Appendix, which require of the student to prove or verify a statement or an example, fill in necessary details in a proof, or provide an intermediate step or a counterexample. They are also an inherent part of the material. More difficult problems are marked with an asterisk, many problem and exercises being supplied with "existential'' hints.? The book is generous on Examples and contains numerous Remarks accompanying every definition and virtually each statement to discuss certain subtleties, raise questions on whether the converse assertions are true, whenever appropriate, or whether the conditions are essential.?? The prerequisites are set intentionally quite low, the students not being assumed to have taken graduate courses in real or complex analysis and general topology, to make the course accessible and attractive to a wider audience of STEM (science, technology, engineering, and mathematics) graduate students or advanced undergraduates with a solid background in calculus and linear algebra. With proper attention given to applications, plenty of examples, problems, and exercises, this well-designed text is ideal for a one-semester graduate course on the fundamentals of functional analysis for students in mathematics, physics, computer science, and engineering. ContentsPreliminariesMetric SpacesNormed Ve.…

Condition: New. In.

Condition: As New. Unread book in perfect condition.

PF. Condition: New.

Condition: New.

Condition: New.