The German mathematician Klaus Janich has a wonderful response to this question in his book on topology, which is intentionally very. Topology. Klaus Janich. This is an intellectually stimulating, informal presentation of those parts of point set topology that are of importance to the nonspecialist. Topology by Klaus Janich: Forward. Content. Sample. Back cover. Review.

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## Undergraduate Texts in Mathematics: Topology by Klaus Jänich (1994, Hardcover)

Packaging should be the same as what is found in a retail store, unless the item janihc handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag.

From chapter 5 and on it provides one of the most modern theoretical works in Topology and group theory and their inter-relationships. The lowest-priced brand-new, unused, unopened, undamaged item in its original packaging where packaging is applicable.

I feel uncomfortable with the proofs Hatcher gives. An e-version is also available from www. I agree that Willard’s is the very best. How much rigour is necessary? MathOverflow works best with JavaScript enabled. More geometric is Lee’s Introduction to Topological Manifoldsit is also very student friendly. The closest anyone’s ever come to pulling it off to me tppology Rotman.

No ratings or reviews yet. The level of rigor that is needed depends on your own taste. I like a book with lots of examples of applications of major theorems.

Thank you, the book seems to be very good. By klaux our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Anyway, I read Hatcher only a few months ago to study for a qualifying exam. Undergraduate Texts in Mathematics: The exercises are superbly chosen and the examples are wonderful in pushing the theory forwards. Giving that topology is very terminology-intensive, this is a real janih.

For me, this level of “rigor” required lies somewhere between explicitly writing out everything in bare bones set theoretic terms, and the level of detail presented in a graduate analysis text such as Rudin.

There is indeed much that is wise in this quote and it really gives what I think is an excellent “rule topoolgy thumb” for determining when a “proof” in mathematics has crossed the line and klas become non-rigorously vague by 21st century mathematical standards to the point is really proves nothing: You get all the advantages of two more specialized textbooks, and since Hatcher’s text is free, your students won’t need to buy two textbooks.

Often algebraic topology texts assume that the reader is well acquainted with arguments of a previous course in point-set topology like this in order not to get trapped on details. I have little teaching experience, but I remember being a student klauss based on that I believe that a few years ago I would have also liked this book.

It covers topics such as completeness and compactness extremely well.

So as part of a course in analysis I used as a source R. I don’t have a printer attached now, so I can’t actually test this, but it looks perfectly ordinary. The German mathematician Tpology Janich has a wonderful kpaus to this question in his book on topology, which is intentionally very non-rigorous and intuitive:.

It was later said by Levy that Janich told him that this particular passage was inspired by Janich’s concerns that German mathematical academia and textbooks in particular were beginning to become far too axiomatic and anti-visual and that this was hurting the clarity of presentations to students. Mathematics Hardcover Signed Books.

### algebraic topology – How much rigour is necessary? – Mathematics Stack Exchange

Students do find this fun. Or a simple closed curve in a plane ‘clearly’ partitions it into two disjoint parts. Kinsey, Topology of surfaces.

Dignaga 2 5. It also doesn’t have enough theorems and proofs to immerse oneself in the new concepts. I do not recommend Munkres I work with both his books on manifolds and topology and the students did not grasp much of the theory. I only looked at the first file in each batch, trusting that the translations work the same way.