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58 of 60 people found the following review helpful:
5.0 out of 5 stars
A real treasure, May 1, 2006
Linear algebra is crucial to anyone in a mathematical or technical field. To the pure or applied mathematician, it is the bread and butter -- a lot of fundamental theorems (even in quite advanced fields like algebraic geometry) ultimately come down to a calculation using linear algebra. In any case, this book is brilliant for the moderately advanced student who knows the basics (maybe sketchily) and wants an extremely comprehensive, rigorous, and coherent review and reordering of his or her linear algebra knowledge. I knew most of the topics in this book in a superficial way, but reading it is quite fulfilling because it all comes together at once. The choice of topics and the angles from which they are presented is extremely strong. The Jordan and Rational Canonical Forms get a full and rigorous treatment. Unlike many linear algebra books, which use some ugly matrix-related kludge in the proofs of the classification theorems, this book does these topics from the algebraic perspective (i.e., as decompositions of modules over principal ideal domains). Inner product spaces are done in their own substantial chunk of the book, where all the essential ideas are developed abstractly and well. Sometimes linear algebra books focus too much on particular examples of inner product spaces or resort to "magical" proofs of important inequalities. This book takes care to build up important lemmas so that big results fall out "naturally". It is by far the best abstract treatment of inner products that I have read (although it should be supplemented by a knowledge of some of the standard examples, which can be found in a typical introductory textbook). The proofs are the most elegant possible, with no ugliness or nonsense. The notation is a gem, without confusing mixes of superscripts and subscripts and nonstandard choices. The exposition is at just the right level (for me at least) -- the steps in proofs that are left as exercises are all reasonable and straightforward, and all the details that are subtle or interesting are filled in, discussed, and emphasized. I have been looking for a beautiful book on linear algebra of this sort for a long time, and am delighted to have finally found it.
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32 of 33 people found the following review helpful:
5.0 out of 5 stars
Outstanding clarity; this is a very well-written book, January 18, 2007
Mathematics books are often considerably more difficult to read than their authors prepare their audiences to believe; this book is a happy exception. It is written for an audience of readers at a specific place in their studies (ones who know linear algebra but want to take their understanding of it to a deeper level), and it reaches this audience very well. The emphasis of this book is on linear algebra in abstract mathematics; it is less useful for people interested in numerical linear algebra. As the name suggests, this book requires a fair amount of background. The introductory chapter moves very fast, but is thorough, and exciting to read. The rest of the book presents advanced topics at a more leisurely pace, while still remaining fairly concise. Some difficult concepts, such as the universal property, are introduced several times at several different places in the book, so that someone working through the book will be more familiar with them when it is finally necessary to understand them on a deeper level. I find the material on modules outstanding; the author explores the analogies between modules and vector spaces, rigorously exploring which analogies hold, and giving examples of cases in which other analogies fail. The presentation of modules in this book differs greatly from that encountered in most abstract algebra texts: while most books focus on modules' similarities to rings and applications in commutative algebra, this text focuses on their similarities to vector spaces and applications to the study linear operators on vector spaces. One should not be scared by the word "advanced" in the book's title. Although the book covers advanced topics, it is very clear. When proofs are omitted, it is usually because they are very easy for the reader to supply. The exercises are very valuable (some are critical for understanding the material), but they're not diabolically difficult. I think this book would make an outstanding textbook for an introductory graduate-level course in linear algebra, or perhaps a senior-level undergraduate course for students with a strong background. It is also very well-suited to self-study. A student with prior background in abstract algebra (group theory, ring theory, etc.) will find this book much more manageable than a student who has not covered such material. People wanting a more introductory text might want to look to the book by Axler, or the old classic by Shilov.
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5 of 5 people found the following review helpful:
5.0 out of 5 stars
The true "Linear ALGEBRA"., April 16, 2010
This review is from: Advanced Linear Algebra (Graduate Texts in Mathematics) (Hardcover)
This is linear algebra as rigorous and beautiful as it can be. The development of the presented concepts is in terms of advanced abstract algebra; particularly rings and modules. However, no prior knowledge of abstract algebra is required to study the book, and this is the very element that makes it a masterpiece. Readers unfamiliar though with basic abstract algebra should expect to progress quite slowly throughout the book, given that they show devotion and enough faith to let their minds be guided by the author's educating pen. Diligent study of the book leads to beautiful insights being emerged that are far from trivial. For this reason, it is highly recommended that the prospective reader possesses a good level of mathematical maturity and is already familiar to a sufficient degree with linear algebra and matrix analysis, e.g. at the level of C. Meyer's "Matrix Analysis and Applied Linear Algebra", which is an excellent first study of the topic. "Advanced Linear Algebra" is a book that addresses those who love linear algebra (or algebra) and are serious about mastering the pertaining concepts. The book is invaluable for combining rigor, depth of exposition, excellent notation and educational character for a topic of immense importance that pervades almost every aspect of modern quantitative sciences.
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