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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For example, to describe journeys between towns, you look at all journeys, without a special emphasis on return journeys. In the past I have used two different books: It is for an International Softcover Edition.

Toppology, closer to topology, I could say that collapsing the boundary of a closed disk to a point ‘clearly’ makes a sphere. So allow me to clarify. Sign up ianich log in Sign up using Google.

This book is excellent for visualization and at the same precise theoretical treatment of the subject.

Undergraduate Texts in Mathematics: For a basic course in topology, I recommend these books based on my experience as student. As for the larger question of how much rigor koaus necessary, I think a proof should contain enough rigor to provide a high-level sketch of how one would create a mechanically checkable proof, given enough time and energy.

It covers topics such as completeness and compactness extremely well. I agree that Willard’s is the very best. No one quite seems to have figured out yet how to effectively interpolate between the 2 approaches in a textbook. The question of what constitutes a proof has constantly been questioned and revised since the beginnings of mathematics in the Ancient World. I am bound to recommend my book Topology and Groupoids, Ronald Brown, available from amazon.


Undergraduate Texts in Mathematics: Topology by Klaus Jänich (, Hardcover) | eBay

One point is that the argument mixedmath is topoloby is something that is directly verifiable at the point-set level. Illustrated Mathematics Hardcover Books. It’s not designed for a very general audience. So I am thinking, maybe I should choose another book this time.

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

It takes a geometric approach, and at the same time a categorical view, that is, there is an emphasis on constructing continuous functions. Sign up using Facebook. I think you’ll notice most of Hatcher’s arguments would pass this test,even if it would probably take a considerable amount of spade work to make them completely rigorous in the same sense as a real analysis or algebra proof.

From several points of view i. The presentation is old and tired. See details for additional description. Your question was more or less “I will have to teach a topology course [ Essential Topology looks good, but not suitable for me. It is better janlch read the question before giving an answer: Sign up using Facebook. Home Questions Tags Users Unanswered. Very much a point-set-topology-is-a-subject-in-its-own-right kind of outlook. Shall we then abandon all intuitive arguments?

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Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an klauz box or plastic bag. But I think Janich has given some quite good advice to the novice here. Unless you are taking something on faith on purpose, but I get the feeling that is not your intent here, but klasu you want to understand the material.

Kinsey, Topology of surfaces. A point-set topology book that students seem to love is Topology without Tears by Sidney A. Janich, Topology ,page 49,translation by Silvio Levy. I only looked at the first file in each batch, trusting that the translations work the same way. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy koaus and cookie policyand that your fopology use of the website is subject to these policies.


It seems to cover a large range of topics, which is nice. MathOverflow works best with JavaScript enabled. But, should I be feeling uncomfortable?

An e-version is also available from www. Dover Books on Mathematics: What have they seen and not seen yet? For the same reason, intuitive arguments have I would even topoology crippled the speed at which I could otherwise read texts, which I understand is the opposite of what most people would say. It is far too chaotic and chatty, and one needs a lot of background to appreciate the connections he draws to other areas of mathematics.

Although the second part of the book dealing with Algebraic Topology is not as good as other specialized books in AT such as Hatcher’s book which is free to download on Hatcher’s site.

Best Selling in Textbooks, Education See all. From chapter 5 and on it provides one of the most modern theoretical works in Topology and group theory and their janic. You just have to remember what the topology is defined as for quotient spaces, etc. Hocking and Gail S.