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Timeline for How to learn homotopy theory

Current License: CC BY-SA 4.0

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Jan 29, 2023 at 20:02 comment added user51223 For limits, section 15 of Gray’s book should serve at least as an introduction bearing in mind that push out or pull backs could be seen as limit of some directed systems! The book is also a very nice introduction to many classic topics in homotopy theory.
Jan 27, 2023 at 20:46 comment added Dmitri Pavlov It's quite regrettable that the very basic tools of homotopy such as homotopy limits/colimits are essentially not present in the basic textbooks. Hatcher, for example, does treat a few special cases (mapping cone/cylinder, mapping telescope), but there is no mention of the general case. There are a few pages in the book of May–Ponto and a rather detailed treatment in Munson–Volić (unfortunately, only for topological spaces). A quick introduction can be found in Dugger's “A primer on homotopy colimits”, which is one of the more popular sources on this topic.
Jan 27, 2023 at 20:29 comment added archipelago That book has a second author.
Jan 27, 2023 at 18:13 comment added Ryan Budney If all you want is things like homotopy limits and push-outs, Volic's "Cubical homotopy theory" gives you quick access. I think it's available on-line.
Jan 27, 2023 at 16:42 comment added Z. M Not claiming to be the "best", but you could try this course.
Jan 27, 2023 at 10:42 comment added Mark Grant If you've already had some exposure to algebraic topology, Peter May's "Concise course..." and May and Ponto's "More concise..." could be good places to look. Also Jeff Strom's "Modern homotopy theory".
Jan 27, 2023 at 10:41 review Close votes
Feb 1, 2023 at 3:05
Jan 27, 2023 at 9:47 history asked Georgonzola CC BY-SA 4.0